Abstract:
A sustainable, mobile, expandable, structure is designed for both short and long term deployments for various uses such as emergency or homeless shelters, fire crews, mobile clinics, research or vacation facilities. A body carriage assembly has wheels, has rigid frame assemblies and a fixed floor panel assembly fixed to it. Foldable roof panels contain energy collectors on their exterior surfaces, which are protected by a screen that is retractable into a void of a roof overhang. Foldable roof panels and adjacent foldable floor panels are deployed by a cabling system assembly, set in motion by a simple tool, requiring no motors or hydraulics. Foldable sidewall panels create eave walls when deployed. Foldable end wall panels create a gable end closure when deployed. A collapsible perimeter ballast assembly use, store and recycle water and provides a windscreen and wind forces.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to U.S. Provisional Application No. 61/271,925 having a filing date of Jul. 27, 2009 entitled “Sustainable, Mobile, Expandable Structure” which is incorporated herein by reference in its entirety. 
    
    
     FIELD OF THE INVENTION 
     This relates to mobile structures, specifically to mobile structures that can be readily transported then expanded to substantially increase interior volume without the use of motors and/or hydraulics. A mobile structure that can operate in locations without an electrical supply and can accommodate extended deployment periods without servicing. A mobile structure integrating sustainable features during deployment such as solar power generated electricity, solar water and space heating, water collection, use, and storage as well as bio waste disposal. A mobile structure with a system to protect and deploy energy collector assemblies omni-directionally. A mobile structure with a means to protect the structure from the effects of wind loading such as up-lift forces. A mobile structure utilizing construction materials and techniques that create and maintain healthy indoor air quality and that allow for recycling of the structure. 
     BACKGROUND OF THE INVENTION 
     Mobile expandable structure designs to date have basically tried to provide a ready-made, weather resistant volume of space. Heating systems, electrical power, water storage and disposal systems, if provided at all, would typically be addressed in a fashion similar to recreational type vehicles and/or require fixed utility connections. Some mobile structures utilizing after market solar panel products may require breaching of the roofing membrane for installation affecting weather resiliency of the structure. The panels, being attached to the roof also remain vulnerable to theft and the elements when not in use. Additionally, the panels are not readily re-directed for optimal solar gain without repositioning of the structure, which may not always be possible. 
     After market systems are typically not adequate to fully support the electrical requirements of extended deployments as dependence remains on 12-volt systems that need to be re-charged via petroleum-fueled generators and/or by connection to an electrical feed. Holding tanks for fresh, ‘gray’ or ‘black’ water require periodic servicing that may require travel to a dumpsite requiring retraction of the deployed structure. Additionally, current construction techniques and finishes can lead to or cause deleterious interior air quality such as molds or off gassing from materials. 
     Inventions to date have not fully addressed a lightweight, mobile expandable structure design that incorporates the use of sustainable features and other techniques to allow for extended periods of deployment while increasing user comfort and ease of use. 
     Both U.S. Pat. No. 5,061,101 to Madden; Maginnis (1991) and U.S. Pat. No. 6,712,414 to Morrow (2004) present expandable systems. U.S. Pat. No. 5,061,101 utilizes a base enclosure assembly with retractable modules that extend out from the base assembly. While U.S. Pat. No. 6,712,414 shows opposing side sections that can be retracted, similar to “pop-outs or slide-outs” in the recreational vehicle industry. The width of the retractable portions is often limited to half the width of the base assembly, if not less, due to the complicated mechanical and structural requirements. Consequently, designs such as this can offer only an approximate doubling of overall floor area in the deployed condition. The dual sided design also makes access to, or through the core structure difficult if not impossible during transport. 
     An increase in relative floor area is shown in U.S. Pat. No. 4,603,518 to Fennes (1986). Here a collapsible mobile building is shown. The increase in size is accomplished by pivotally connecting the collapsible portions to the fixed base. Using motors, the collapsible units travel through an approximate 90° arc where they are subject to racking loads due to the designs geometry. Once in place, the collapsible units have roofs that are higher than the central base unit making for uncertain weather protection issues along the longitudinal interfaces of the fixed and collapsible portions. Also, the conveyance is shown using a heavy-duty tractor-trailer type rig for transport. The increased floor areas of this design would also be subject to the increased effects of wind loading such as ‘uplift’ forces on the structure. 
     U.S. Pat. No. 4,534,141 to Fagnoni (1985) and U.S. Pat. No. 5,996,956 to Morris: Rogers (1999) show an alternative means of deployment to the patents mentioned above. However, both patents are not shown to be independently mobile, via mounting to a permanent wheeled conveyance, U.S. Pat. No. 4,534,141 shows substantial longitudinal base beams that are integral to the floors longitudinal frame requiring the support of a foundation such as a concrete slab or pad footings as there are no means for terrain adjustments along this central support core. Additionally, the longitudinal fixed frames of the walls are primarily solid and allow for only nominal passage to the deployed areas that are on either side of the core thus reducing floor plan flexibility. Gutters are shown in the detailed views but do not offer a means to use or store collected water. Insulation of the structure is also greatly compromised at the junctures of the foldable roof connection to the eave walls creating a poor thermal condition at a critical area of any heated structure. 
     U.S. Pat. No. 5,996,956 shows a portable refrigerated storage unit that may function as a structure or a mortuary in emergency situations. The unit is designed for shipping and transporting in a standard cargo-shipping container. Shipping container size constraints limit the structures interior height and volume when deployed; this may impinge on the users overall well being if the structure is to be used for extended periods. 
     The design also utilizes steel for both the skin and structural elements, making for a heavy overall weight. The design shows the foldable floor, wall and roof panels each being deployed in two segments requiring additional trim and flashing pieces to be installed at their common junctures. Other individual parts are also shown that need to be separately installed to complete the deployment. If these pieces are not installed properly or the pieces or lost or misplaced, the structure may not function properly affecting weather resiliency; which if compromised, may lead to an uncomfortable interior environment and possible health issues as well as adversely affecting the structural integrity of the structure. 
     In conclusion, insofar as I am aware, no self-sustaining, mobile, expandable structure developed provides the mobility of a lightweight wheeled conveyance that can expand easily to approximately three times the area of the unit in transport, requiring no motors or mechanized tools and can provide protection from wind up-lift forces while providing extensive water fresh and grey water handling capabilities. 
     SUMMARY 
     An improved sustainable, mobile, expandable, structure used for both short and long term deployments. An aluminum body carriage and aluminum structural members in the panel assemblies keep the structure lightweight. The use of primarily bolted and/or screwed connections allow for shipping of the structure in pre-fabricated panels or in individual pieces, such as a kit if required. Floor, wall and roof panel assemblies utilize rigid insulation providing insulation values comparable to fixed structures. 
     Through the use of an integral aluminum skin the rigid insulation is provided a thermal barrier at the interior faces of the wall and roof panel assemblies, satisfying a degree of fire protection stated in most model codes, while also being a hygienic, easy to clean low maintenance finish that does not harbor mold. 
     A structure that does not require site installed flashing or trim pieces to complete deployment. A structure providing a means to deploy and then direct extensive areas of solar energy assemblies for optimal solar gain, independent of the mobile structures orientation, while also affording a means to store and protect the assemblies both during transport and deployment. A structure that can capture and store solar energy for electricity as well as water and space heating allowing for remote and/or extended deployments where electrical utilities may not be available. A structure that provides a means for the collection and storage of rain water as well as a system for increased fresh and gray water storage, use, and recycling utilizing the mass of the stored water to counter the effects of wind such as up-lift forces on the deployed structure. A structure that allows flexible interior floor plan configurations made available through the use of removable interior partitions, while also providing for bio-waste disposal without retraction of the deployed structure. 
     Accordingly several advantages are to provide for a compact, self-sustaining mobile structure that is easily transportable on roads with an improved ratio of deployed area/volume while simplifying the number of moving parts, sub-structures or by deletion of motors or specialized equipment required for deployment. Still further advantages will become apparent from a study of the following description and the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective left-side front view of a mobile structure constructed in accordance with the invention, showing the invention in transport mode. 
         FIG. 2  is a plan view of the mobile structure shown in  FIG. 1 . 
         FIG. 3  is a lateral cross-sectional/elevation view of the mobile structure shown in  FIGS. 1 and 2 . 
         FIG. 4  is a longitudinal sectional/elevation view of the mobile structure shown in  FIGS. 1 and 2 . 
         FIG. 5  is a perspective left-side front view of a mobile structure constructed in accordance with the invention, showing the invention in a deployed mode. 
         FIG. 6  is a plan view of the mobile structure shown in  FIG. 5 . 
         FIGS. 7 and 7A  are plan views of the deployed mobile structure showing flexibility of plan configurations through use of the removable interior partitions. 
         FIG. 8  is a lateral cross-sectional/elevation view of the mobile structure shown in  FIGS. 5 and 6   
         FIG. 9  is a longitudinal sectional/elevation view of the mobile structure shown in  FIGS. 5 and 6   
         FIG. 10  and  FIG. 11  are respectively a side elevation and a rear elevation of the mobile structure shown in a transport mode. 
         FIG. 12  is an enlarged detail view of the foldable wall, floor and ballast assemblies. 
         FIG. 13  is an enlarged detail view of the foldable wall, roof and overhang assemblies. 
         FIG. 14  is a perspective view of the energy collector assembly in one variation of deployment. 
         FIG. 15  is a perspective view of the energy collector assembly in an alternative variation of deployment. 
         FIG. 16  is a sectional perspective view of the energy collector assembly shown in  FIG. 15 . 
         FIG. 17  is an enlarged sectional perspective view showing detail of the energy collector assembly and related assemblies shown in  FIG. 14 . 
         FIG. 18  and  FIG. 18A  are interior sectional perspectives showing the cabling system assemblies. 
         FIG. 19  is a schematic plumbing diagram. 
         FIG. 20  is a schematic solar energy collector diagram for use of photovoltaic panels 
         FIG. 21  is a schematic solar energy collector and plumbing diagram for use of solar thermal panels. 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  is an exterior perspective view taken from the towing end of the mobile, expandable, structure  11  constructed in accordance with one embodiment. The view shows the structure  11  in a transport or non-deployed mode. A body carriage assembly  12 , consisting of two longitudinal beams  12 A, transverse beams  12 B, ( 12 A,  12 B not shown) angled neck beams  12 C, and hitch  12 D provide the platform for mounting a wheel/axle assembly  63  with fender  64  above. Nearest the hitch  12 D, is a secondary leveling pad  35 , and a forward enclosure assembly  42  is shown for securing fuel storage cylinders such as liquid propane gas. 
     The forward enclosure assembly  42  consists of two door panels  42 A, a hinge for each panel  42 B,  2  locking mechanisms  42 C, for each panel, a roof panel  42 D provides weather protection and a means to mount two perforated panels  42 E for screening plumbing stack vents from direct view. Adjacent to the forward enclosure assembly  42  is the fixed wall panel assembly  16 , which are located on either side of the structure  11 . Wall panel assembly  16  consisting of top and bottom metal channels  16 A, metal ‘I’ stud framing  16 B. Rigid insulation  16 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal ‘I’ stud framing  16 B. 
     The rigid insulation has a layer of aluminum disposed to the interior plane of the wall. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. The exterior skin consists of a monolithic sheet of fiberglass siding  16 E adhered to a structural diaphragm substrate  16 D. Trim with compressible weather-strip  16 F (see  FIG. 11 ) provides weather tightness during transport when in contact with the guide rail assemblies  66  and the roof overhang assemblies  27  and also by panel assemblies  16  juncture with the foldable end wall panel assemblies  21  when structure  11  is in a deployed mode. 
     A rock guard  67  is at the base of both the wall panel assemblies  16 , and the forward enclosure assembly  42 . Rock guard  67  has a plurality of vertical spaced runners that hold the body of the guard off the plane of the fiberglass siding  16 E, allowing water to drain in the void created. A fixed roof panel assembly  14  spans the remainder of the structure  11  and is shown with a venting skylight  47 , a remote air conditioning unit  50 , and a mechanical equipment vent  61 , running lights  48  are located at the fascia edge of the fixed roof panel assembly  14  as well as at the leading edge of the roof panel  42 D. 
     Drainage channel  62  redirects water to the edge of the structure  11 . A series of guide rail assemblies  66  are shown allowing for movement of a retractable screen assembly  46 . The primary leveling pads  34  are shown at the bottom of the structure  11 . 
       FIG. 2  is a plan view of the structure  11 , while in a transport or non-deployed mode. A plurality of rigid frame assemblies  13  and a fixed floor panel assembly  17  are secured to the body carriage assembly  12 . Floor access panels  31 , provide a means to service sub-floor components (not shown) such as the fresh water vessel  54 , hydronic heating water vessel  68 , as well as the energy storage equipment  55  shown in later figures. 
     Fixed wall panel assemblies  16  extend obliquely from the fixed end wall panel assembly  15  and when joined by an additional fixed wall panel assembly  16  disposed adjacent to the forward enclosure assembly  42  provide an enclosure of insulated space where the sink/lavatory  44 , gray water vessel  44 A (not shown) and incinerating toilet  45  are located. A floor drain  76  provides drainage of water when the showerhead  77  is utilized (not shown.) The fixed end wall panel assemblies  15  are located at each end of the operable portion of the structure  11  and consist of top and bottom metal channels  15 A, metal ‘I’ stud framing  15 B. 
     Rigid insulation  15 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal ‘I’ stud framing  15 B. The rigid insulation has a layer of aluminum disposed to the interior planes of the wall. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. 
     The exterior skin of assembly  15  (shown near the bottom of the figure) consists of a monolithic sheet of fiberglass siding  15 E adhered to a structural diaphragm substrate  15 D. Fixed end wall base flashing  72  (see  FIG. 11 ) provides weather tightness at the juncture of assembly  15  and the body carriage assembly  12 . 
     The operable portions of the structure  11  are shown longitudinally. From the exterior side of the structure  11 , to the interior side are shown the retractable screen assembly  46 . The retractable screen assemblies  46  protect the energy collector assemblies  26  and add a level of protection from theft of assembly  26  during transport or if required during the structures deployment. The guide rail assemblies  66  are mounted to the foldable roof panel assemblies  18  which in turn are secured to roof hinges  28  shown in  FIG. 3  that are disposed along the longitudinal outside bottom edge of the fixed roof panel assemblies  14  shown in  FIG. 3 . 
     Disposed adjacent to the foldable roof panel assemblies  18  is the foldable floor panel assembly  19 , which in turn is hinged to the foldable side wall panel assembly  20 . The foldable floor panel assembly  19  is hinged longitudinally via a floor hinge  29  shown in ( FIG. 3 ) that is secured to the perimeter metal channel of the fixed floor panel assembly  17 . Foldable end wall panel assemblies  21  are mounted to the rigid frame assembly  13 . The collapsible stair  58  and removable handrail  59  are shown just inside the door to the structure  11 . Interior partitions  74  are not shown. 
       FIG. 3  is a lateral cross-section, elevation view of the mobile, expandable, structure  11  in transport or non-deployed mode. The collapsible stair  58  and removable handrail  59  are omitted for clarity. Longitudinal beams  12 A provide a mounting surface for the leaf spring suspension  63 C, axle  63 A, and wheels  63 B. A rigid frame assembly  13  is shown comprised of two vertical components  13 A rigidly connected to at least one horizontal component  13 B. 
     The bases of the vertical components  13 A are rigidly connected to the body carriage assembly  12 . The rigid frame assemblies  13  allow for the resisting of lateral loads imposed on the structure  11 . The primary leveling pads  34  are positioned directly under the vertical component  13 A of the rigid frame assemblies  13  (see  FIG. 4 ) A fixed end wall panel assembly  15  is located within the width of the clear opening of the rigid frame assembly  13 . 
     Foldable end wall panel assemblies  21  are vertically hinged to a face of the vertical component  13 A that is offset from the interior plane of the fixed end wall panel  15  (See also  FIG. 2 .) The foldable end wall panel assemblies comprising of longitudinal metal track channels  21 A with integral compressible weather-strip, metal ‘I’ stud framing  21 B, rigid insulation  21 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal ‘I’ stud framing  21 B. 
     The rigid insulation  21 C has a layer of aluminum disposed to the interior plane of the wall when deployed. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. Added benefits of the aluminum layer are weight savings as compared to a gypsum wall panel finish while also providing a non-organic, hygienic material that is not susceptible to mold growth or off-gassing as well as being easy to clean. 
     The exterior skin consists of a monolithic sheet of fiberglass siding  21 F adhered to a structural diaphragm substrate  21 D such as plywood. An integral counter flashing  21 E is located near the base of the wall in the deployed position and provides for weather tightness when it laps over the floor extrusion trim  65 . The fiberglass siding  21 F is broken longitudinally so as to lap a vertical leg of the counter flashing  21 E. 
     A fixed floor panel assembly  17  is bolted to the body carriage  12 . The fixed floor panel assembly  17  has a bolted, perimeter metal channel  17 A, metal joists  17 B shown in ( FIG. 4 ) are secured by screws to a continuous ledger raceway  17 F. The ledger raceway  17 F provides a datum elevation for the bottom flange of the metal joists  17 B to attach to as well as providing a protected conduit space for utility runs such as electrical wiring. A metal clip  17 H (not shown) secures the joists  17 B from overturning. The ledger raceway  17 F is welded to the inside of the perimeter metal channel  17 A. Rigid insulation  17 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal joists  17 B shown in ( FIG. 4 ). The rigid insulation  17 C has an exterior layer of aluminum disposed to the exterior plane that would provide protection from road travel and the elements. The protective aluminum layer would be visible on the underside of the fixed floor panel assembly  17 . 
     A removable floor diaphragm  17 D made of metal is screwed to the perimeter metal channels  17 A and the metal joists  17 B shown in ( FIG. 4 ) and contains within its depth a portion of the closed loop floor plumbing system  17 E. 
     A dropped utility metal floor  17 G is shown supporting the energy storage equipment  55 . A floor hinge  29  is mounted longitudinally to the outside of both longitudinal sides of the metal channel  17 A allowing for the deployment of the foldable floor panel assembly  19 . The foldable floor panel assembly has a bolted perimeter metal channel  19 A, metal joists  19 B (not shown) are secured by screws to a continuous ledger raceway  19 F. The ledger raceway  19 F provides a datum elevation for the bottom flange of the metal joists  19 B to attach to as well as providing a protected conduit for utility runs such as electrical wiring. The ledger raceway  19 F is welded to the inside of the perimeter metal channel  19 A. 
     Rigid insulation  19 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal joists/blocking  19 B. The rigid insulation  19 C has an exterior layer of aluminum disposed to the exterior plane and would provide protection from daily use as well as from the elements. The protective aluminum layer would be visible on the underside of the foldable floor panel assembly  19 . 
     A removable floor diaphragm  19 D made of metal is screwed to the perimeter metal channel  19 A and the metal joists/blocking  19 B and contains within its depth a portion of the closed loop floor plumbing system  19 E. A floor hinge  29  is mounted to one longitudinal side of the metal channel  19 A. A collapsible ballast assembly  32  is hinged to the three perimeter metal channels  19 A that are not directly attached to the fixed floor panel assembly  17  via the floor hinge  29  and floor extrusion trim  65 , is mounted to the exterior faces of these three same perimeter metal channels  19 A. The secondary leveling pads  35  are rotated 90° from their deployed relationship to the foldable floor panel assembly  19  while they are in non-deployed or transport mode. They are mounted over the floor extrusion trim  65  and bolted through to the outermost longitudinal perimeter metal channel  19 A of the foldable floor panel assembly  19 . 
     A foldable side wall panel assembly  20  consisting of longitudinal metal track channels  20 A with integral compressible weather-strip, metal stud ‘I’ framing  20 B, rigid insulation  20 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal stud framing  20 B. The rigid insulation  20 C has a layer of aluminum disposed to the interior plane of the wall when deployed. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. The exterior skin of fiberglass siding  20 F is adhered to a structural diaphragm substrate  20 D such as plywood. 
     An integral counter flashing  20 E is located near the base of the wall in the deployed position and provides for weather tightness when it laps over the floor extrusion trim  65 . The fiberglass siding  20 F is broken longitudinally so as to lap a vertical leg of the counter flashing  20 E. Outside corner trim  20 G (not shown see  FIG. 5 ) provides weather tightness by lapping an edge of the foldable end wall panel assembly  21 . The foldable sidewall assembly  20  is disposed adjacent to the foldable floor panel assembly  19  and connected by a horizontal wall hinge  30  to the foldable floor panel assembly  19 . 
     A foldable roof panel assembly  18  has skewed metal angles  18 A along both longitudinal edges, metal rafters/blocking  18 B, rigid insulation  18 C is installed to a thickness that would provide at least a R-30 insulation value and is mounted in-between the metal rafters  18 B. The rigid insulation  18 C has a layer of aluminum disposed to the interior plane of the wall when deployed. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. 
     A walk able roof surface is comprised of a flexible roof membrane  18 E adhered to a structural diaphragm substrate  18 D such as plywood. The foldable roof panel assembly  18  is bolted to the roof overhang assembly  27  through a skewed metal angle  18 A. The bottom of the roof overhang assembly  27  is offset from the interior plane of the foldable roof assembly  18  creating a stop for the deployed foldable side wall assembly  20 , an auxiliary metal angle  18 F attached to the interior plane of the foldable roof panel assembly  18  and is disposed so as to create a second stop for the deployed foldable side wall assembly  20 . 
     End wall counter flashing  18 J provides weather tightness between the foldable roof panel assemblies  18  to the foldable end wall panel assemblies  21 . The opposing skewed metal channel  18 A is screwed to a plurality of roof hinges  28  that are spaced at intervals along the longitudinal edges of the fixed roof panel assembly  14 . Insect screening is installed between the roof hinges  28  that provide ventilation while the structure  11  is being transported and/or stored. The fixed roof panel assembly  14  is comprised of metal rafters  14 A screwed to a skewed leg of the edge angle  24  at the fascia locations. At the venting skylight  47 , the rafters are supported by a header angle  14 B. Rigid insulation  14 C is installed to a thickness that would provide at least a R-30 insulation value and is mounted in-between the metal rafters  14 A. The rigid insulation  14 C has a layer of aluminum disposed to the interior plane of the wall when deployed. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. 
     A walk able roof surface is provided by a flexible roof membrane  14 E material adhered to a structural diaphragm substrate  14 D such as plywood. The membrane  14 E and diaphragm substrate  14 D remain integral and cover the fascia of the fixed roof panel assembly  14  where the materials terminate in drip edge trim  14 F. Two longitudinal roof support  22  elements are rigidly fixed and supported by the rigid frame assemblies  13 , lateral roof support  23  elements are rigidly fixed to the longitudinal roof supports  22  and substantially provide support to the edge angle  24 . Intermediate metal rafters  14 A located between the lateral roof support  23  elements utilize support-blocking  25  that are screwed to the webs of the lateral roof support  23  elements. A cabling and pulley system assembly  39  is shown holding the foldable roof panel assembly in a secure position while in transport or non-deployed mode. 
       FIG. 4  is a longitudinal sectional view of the mobile, expandable, structure  11  in transport or non-deployed mode. A body carriage assembly  12  provides mounting for the wheel/axle assembly  63 . A fixed floor panel assembly  17  is bolted to the body carriage assembly  12 . Increased depth metal ‘I’ joists  17 B support a utility metal floor  17 G creating the compartments for the fresh water vessel  54 , energy storage equipment  55  and the hydronic heating water vessel  68 . Isolation mounts  55 A provide shock protection for the energy storage equipment  55 . Perimeter insulation protects vessels  54  &amp;  68  from extreme temperatures. A plurality of vertical components  13 A is rigidly connected to the body carriage assembly  12  at their base. 
     Primary leveling pads  34  are located under the two interior rigid frame assemblies  13 . The horizontal component  13 B of the rigid frame assemblies  13  are rigidly connected to the longitudinal roof supports  22 . A plurality of lateral roof supports  23  and lateral roof supports with pulley housing  23 A provides support to the fixed roof panel assembly  14  which has a venting skylight  47  shown. Foldable end wall panel assemblies  21  and the foldable sidewall panel assembly  20  are shown. A foldable roof closure panel assembly  56  provides weather protection for the structure  11  in both transport and deployed mode. 
       FIG. 5  is a perspective left-side front view of the mobile, expandable, structure  11  in the deployed mode. Foldable end wall panel assemblies  21  are shown deployed adjacent to the fixed wall panel assemblies  16  and the forward enclosure assembly  42  that make up the front or leading end of the structure  11 . Foldable side wall panel assemblies  20  are disposed perpendicular to the foldable end wall panel assemblies  21  and are counter flashed by the outside corner trim  20 G. Foldable roof panel assemblies  18  are hinged to the fixed roof panel assembly  14 . End wall counter flashing  18 J provides weather tightness between assemblies  18  and  21 . 
     Energy collector assemblies  26  feature the energy collector panel&#39;s  26 A rotated 90° from their transport position, showing flexibility in positioning for optimum solar gain. Roof overhang assemblies  27  provide sun shielding and provide a housing for the retractable screen assembly  46  as well as an integral gutter  27 G ( 46  and  27 G not shown see  FIG. 13 ). 
     A retractable closed loop cable/cross rod  37 A is shown securing the foldable roof panel assembly  18  to the foldable floor panel assemblies  19 . The closed loop cable  37 A terminates at bottom outside corner of the foldable floor panel assembly  19  via a tension paddle  37 D and handle/lock  37 F ( 19 ,  37 D and  37 F not shown see  FIG. 12 ). 
     A perimeter ballast assembly  32  holds both fresh and gray water in separate flexible membranes. The weight of the water is an aid to counter wind up-lift forces on the structure while also providing substantial increases in water holding capacity when deployed. A fabric access panel  32 G provides access to removable series ballast plumbing  69  (not shown, see  FIG. 12 ) Fill/overflow  69 A ports and drain  69 B ports provide a means for water transference to/from the ballast assembly  32 . Downspouts  36  provide a means to reclaim rainwater and divert the water to the ballast assemblies  32 . Secondary leveling pads  35  are mounted to the structure  11  providing additional support. A collapsible stair  58  with a removable handrail  59  are shown at the far right hand side of the figure and provide for a second means of egress. 
       FIG. 6  is a plan view of the structure  11 , while in a deployed mode. A plurality of rigid frames  13  and a fixed floor panel assembly  17  are secured to the body carriage assembly  12 . Fixed wall panels  16  extend obliquely from the fixed end wall panel  15  and when joined with an additional fixed wall panel  16  disposed adjacent to the forward enclosure assembly  42  provide an enclosure of insulted space where the sink/lavatory  44  and incinerating toilet  45  are located. The foldable floor panel assemblies  19  utilize a floor hinge  29  for a connection to the fixed floor panel assembly  17 . 
     A plurality of foldable sidewall panel assemblies  21 , are hinged to the vertical component  13 A of the rigid frame assemblies  13 . End wall tension tie assemblies  60 , secure the non-fixed end of the end wall panel assemblies  21  to the foldable sidewall panel assemblies  20 . A horizontal wall hinge  30 , secures the foldable sidewall panel assemblies  20  to the foldable floor panel assemblies  19  along their adjacent edges. A pair of collapsible stairs  58  with removable handrails  59  is shown and provides a means of egress. 
       FIG. 7  is a plan view of the structure  11 , while in a deployed mode. The configuration creates a central octagonal shaped space located primarily under the venting skylight  47 . Four separate suites are also created for uses such as in a clinic, sleeping rooms or office space. Interior partitions  74 , similar to modern office environments are secured to the vertical components  13 A of the rigid frame assemblies  13 . Additional extruded metal supports  75  are utilized at the remaining junctures of the interior partitions  74 . Electrical feeds up through the extruded metal supports  75  as well as the rigid frame assemblies  13 , lend additional flexibility. 
       FIG. 7A  is a plan view of the structure  11 , while in a deployed mode. The configuration creates a central corridor lit by the venting skylight  47 . Five rooms on either side of the corridor can accommodate single beds to house the homeless or for temporarily displaced people such as in events local or national emergencies. Shown on the left side of the central corridor is an alternative embodiment with the individual spaces have been modified for use as shower facilities with heated water generated by the energy collector assemblies  26  and waste-water redirected to the ballast assemblies  32 . Interior partitions  74  are secured to the vertical component  13 A of the rigid frame assemblies  13 . Additional extruded metal supports  75  are utilized at the remaining junctures of the interior partitions  74 . 
       FIG. 8  is a lateral cross-section/elevation view of the mobile, expandable, structure  11 , while in a deployed mode. Longitudinal beams  12 A provide a mounting surface for the wheel/axle assembly  63 . The collapsible ballast assembly  32  is shown deployed (see  FIG. 12  for additional information.) A plurality of hinged floor tie assemblies  73  secure the foldable floor panel assemblies  19  to the fixed floor panel assembly  17  along their shared longitudinal edges. 
     A metal stop spaced at intervals along the bottom outside edge of the perimeter metal channel  17 A provides a means for obtaining flush floor relationships between the fixed and foldable floor panels while a continuous compressible insulation strip seals the juncture of the opposing perimeter metal channels  17 A and  19 A. A floor hinge  29  provides a longitudinal pivot point for the opposing fixed and foldable floor panels. Sidewall panel assemblies  20  are positioned perpendicular to and secured by a horizontal wall hinge  30  to the foldable floor panel assemblies  19 . Primary leveling pads  34  and secondary leveling pads  35  are shown deployed adding support and allowing adjustments for various grade elevations. 
     Foldable end wall panel assemblies  21  are vertically hinged to a face of the vertical component  13 A that is offset from the interior plane of the fixed end wall panel  15  (See also  FIG. 2 .) Foldable roof panel assemblies  18  are supported by a plurality of roof hinges  28  at their juncture to the fixed roof panel assembly  14 . 
     Assembly  18  holds the assemblies  20  and  21  in place by an auxiliary metal angle  18 G on the interior side of the structure  11 . The roof overhang assembly retains the exterior side of assembly  20  in place via a mounting panel  27 H ( 18 G and  27 H shown in  FIG. 13 ). 
     A plurality of end wall tension tie assemblies  60  provide a means of tying assemblies  18  to  21 , assemblies  20  to  21  and assemblies  19  to  21  when in a deployed mode. The roof overhang assembly  27  (see also  FIG. 13 ) shows the retractable screen assembly  46  substantially contained within its volume, allowing for deployment of the energy collector assembly  26 . 
       FIG. 9  is a longitudinal sectional view of the mobile, expandable, structure  11  in a deployed mode. Exterior ballast assemblies  32  and a collapsible stair  58  are shown deployed. The foldable sidewall panel assembly  20  is shown upright in its deployed position. A foldable roof panel  19  is shown obliquely. A foldable roof closure panel assembly  56  has an adjustable support angle and a guide at the fixed end wall panel assembly  15 . Deployed energy collector assemblies  26  are shown in a position rotated 90° from their transport mode showing the flexibility of the sustainable, mobile, expandable structure  11 . 
       FIG. 10  is a side elevation view of the mobile, expandable, structure  11  in a transport or non-deployed mode. The body carriage assembly  12  provides mounting for the wheel/axle assembly  63 . Primary leveling pads  34  and secondary leveling pads  35  are shown retracted. The hinged floor tie assemblies  73  are shown on either side of the primary leveling pads  34 . The forward closure assembly  42  abuts a fixed wall panel assembly  16  with a rock guard  67  at its base. Above the rock guard is the water fill/drain access panel with lock  70  as well as the electrical access panel with lock  71  for connections to utilities if required. The retractable screen assembly  46  has metal slats  46 A that are contained in a reveal of the guide rail assembly  66 . Assembly  46  protects from theft and the elements the underlying energy collector assemblies  26  during transport and storage modes. The fixed roof panel assembly  14  shows the venting skylight  47  as well as the remote air conditioning equipment  50  and the mechanical equipment vent  61 . 
       FIG. 11  is a rear elevation view of the structure  11  in a transport or non-deployed mode. The foldable roof closure panel  56  is hinged to the fixed roof panel assembly  14  and provides protection from the elements. An access door is mounted in the fixed end wall panel assembly  15 . Drive gears with locks  40  are used for deployment of the foldable roof panel assembly  18  and the foldable floor panel assembly  19 . 
     A simple socket type tool with a lever handle is utilized to control the pulley and cabling system assembly  39  (see  FIGS. 18 and 18A ) that raises and lower assemblies  18  and  19 . A fixed end wall base flashing  72  mounts to the transverse beams  12 B of the body carriage assembly  12 . End wall counter flashing  18 J laps the floor extrusion trim  65  that is mounted to the foldable floor panel assembly  19 . End wall flashing  41  protects the outside vertical edges of end wall panel assembly  15  and in turn is partially lapped by the floor extrusion trim  65  near its base. Drive gears with locks  40  are also shown on the end of the roof overhang assembly  27 . A simple socket type tool with a lever handle is also used here to raise and lower the retractable screen assembly  46  shown in  FIG. 10 . 
       FIG. 12  is an enlarged detail view of the foldable wall panel assembly  20  connecting via the wall hinge  30  to the foldable floor panel assembly  19 . The ballast assembly  32  mounts to the underside of the assembly  19 . The secondary leveling pad  35  is omitted from this detail view for clarity of the remaining elements being described. The foldable side wall panel assembly  20  consisting of longitudinal metal track channels  20 A with integral compressible weather-strip, metal stud ‘I’ framing  20 B, rigid insulation  20 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal stud framing  20 B. 
     The rigid insulation  20 C has a layer of aluminum disposed to the interior plane of the wall when deployed. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. The foldable wall panel consisting of a monolithic sheet of fiberglass siding  20 F adhered to a structural diaphragm substrate  20 D such as plywood. 
     An integral counter flashing  20 E is located near the base of the wall in the deployed position and provides for weather tightness when it laps over the floor extrusion trim  65 . The foldable floor panel assembly  19  has a bolted perimeter metal channel  19 A, metal joists  19 B are secured by screws to a continuous ledger raceway  19 F. The ledger raceway  19 F provides a datum elevation for the bottom flange of the metal joists  19 B to attach to as well as providing a protected conduit for utility runs such as electrical wiring. The ledger raceway  19 F is welded to the inside of the perimeter metal channel  19 A. 
     A metal clip  19 K is spot welded to the inside of the metal channel  19 A and secures to the metal joists  19 B by screws. Rigid insulation  19 C is installed to a thickness that would provide at least a R-20 insulation value and is mounted in-between the metal joists/blocking  19 B. The rigid insulation  19 C has an exterior layer of aluminum disposed to the exterior plane and would provide protection from daily use as well as from the elements. The protective aluminum layer would be visible on the underside of the foldable floor panel assembly  19 . 
     A removable floor diaphragm  19 D made of metal is separated by thermal break  19 J from the perimeter metal channel  19 A and the metal joists/blocking  19 B and contains within its depth a portion of the closed loop floor plumbing system  19 E and insulation  19 L. Perimeter insulation  19 G provides an additional thermal break. 
     A finish floor material  19 H is secured to the diaphragm  19 D and is readily replaced or removed for cleaning. The closed loop cable/rod  37 A is pulled down from the roof overhang assembly  27  (see  FIG. 13 ) by a simple hooked tool to approximately the level of the bottom of assembly  19 . The tension paddle  37 D being in a non-deployed mode would be approximately parallel to the floor extrusion trim  65 . A ‘J’ hook makes up the topmost end of the tension paddle  37 D and secures the closed cable/rod within the ‘J’ hook. The tension paddle  37 D is pivotally connected to the tension paddle hinge  37 E and stretches the cable over the cable fulcrum  37 B. The tension paddle is sprung into a fixed position by the back wall of the body  37 C and then locked in place by the handle/lock  37 F. The ballast assembly  32  is shown approximately half way through a transition from 100 % potable water to 50% potable water and 50% gray water being contained. 
     Assembly  32  consists of flexible body panels  32 E comprising a bottom, four sides and a sloped top panel. When deployed the body panels  32  E define a volume that is initially filled with potable water  32 H that is held within chamber membrane  32 F. Keeping separate the gray water  32 J contained within chamber membrane  32 F 1  that is released from the onboard gray water vessel  44 A mounted under the sink/lavatory  44  or from floor drains  76 . The gray water  32 J displaces the potable water  32 H in equal volumes through a capacity sensor and in line pumps (see also  FIG. 19 ) The fixed gray water plumbing  32 K and the fixed fresh water plumbing  32 L are shown dashed near the base of the assembly. 
     Above the bottom ballast panel  32 E is the electric resistance mat  32 M fed from the energy storage equipment  55  to keep the water from freezing in cold climates. Near the bottom of the ballast assembly  32 , a drain  69 B is shown capped. Above this the downspout  36 , utilizing a flexible leader  36 A brings harvested rainwater to the fill/overflow  69 A connection of the ballast assembly. If required, the leader  36 A can be turned outward. The ballast neck  32 D provides a reinforced seam to connect the ballast panels  32 E to the adjustable leg panel  32 C. 
     Leg panel  32 C is flexible and is provided to address minor differences in grade that may occur upon deployment. Part  32 C is released from the body  32 B as required by grade changes. The body  32 B is axially connected to the body mount  32 A, which is secured to the ledger raceway  19 F and a flange of channel  19 A. Access panel  32 G is shown beyond (see also  FIG. 5 ) allowing deployment of the field installed series ballast plumbing  69  allowing the potable water to fill up the remaining chamber membranes  32 F such as when space does not allow easy access around the structure  11 . 
       FIG. 13  is an enlarged detail view of the foldable roof panel assembly  18  fixing the top of the foldable wall panel assembly  20  in place. A roof overhang assembly  27  is shown with elements of the retractable screen assembly  46  contained therein. The guide rail assembly  66  is shown providing support to the energy collector assembly  26 . 
     A foldable roof panel assembly  18  has skewed metal angles  18 A along both longitudinal edges, metal rafters/blocking  18 B, rigid insulation  18 C is installed to a thickness that would provide at least a R-30 insulation value and is mounted in-between the metal rafters  18 B. The rigid insulation  18 C has a layer of aluminum disposed to the interior plane of the wall when deployed. The aluminum layer is of sufficient thickness to satisfy model code requirements for a thermal barrier to the rigid insulation. 
     A walk able roof surface is comprised of a fire resistant flexible roof membrane  18 E adhered to a structural diaphragm substrate  18 D such as plywood. The foldable roof panel assembly  18  is bolted to the roof overhang assembly  27  through a skewed metal angle  18 A connecting to threaded studs welded to the face of the mounting panel  27 H. Metal clip  18 H is welded to channel  18 A and secures the web of part  18 B by means of screws. The bottom of the roof overhang assembly  27  is offset from the interior plane of the foldable roof assembly  18  creating a stop for the deployed foldable side wall assembly  20 , an auxiliary metal angle  18 G attached to the interior plane of the foldable roof panel assembly  18  is disposed so as to create a second stop for the deployed foldable side wall assembly  20  as well as assembly  21  beyond. 
     Metal track channel with an integral weather strip  20 A is shown compressed at the top of assembly  20 . End wall counter flashing  18 J (see  FIG. 5 ) provides weather tightness between the foldable roof panel assembly  18  and the foldable end wall panel assemblies  21 . A plurality of end wall tension tie assemblies  60  provide a means of tying assemblies  18  to  21 , assemblies  20  to  21  and assemblies  19  to  21  when in a deployed mode. Assembly  27  consisting of a tapered end panel  27 A at opposing ends of the modular unit. An operable top panel  27 B utilizes hinge  27 E for access to the interior volume that is substantially defined by the addition of the fixed soffit panel with drip  27 C. 
     Mounting panel  27 H provides a means for mounting assembly  27  to assembly  18 , while cross brace  27 J adds rigidity. A continuous drive rod  27 D is driven by the drive gear/lock  40  (see  FIG. 11 ) a closed loop cable/pulley assembly  27 M consisting of four pulleys and a closed loop cable. Three pulleys shown are mounted to the face of panel  27 A and a return pulley (not shown) is mounted to the interior side of end cap  66 B of the guide rail assembly  66 . The cable is put in motion by the turning of the drive rod  27 D and allows for retraction and deployment of assembly  46 . 
     Assembly  46  consisting of metal slats  46 A, longitudinal hinge  46 B, center pivot  46 C, panel stop  46 D and the panel head  46 E. A slat guide channel  27 L is configured to the inside walls of the tapered end panels  27 A and provide a track to contain center pivot  46 C. The channel  27 L directs assembly  46  to the top most reveal of the extrusion contained within assembly  66  where it can travel to protect the energy collector assembly  26  as required. A void  27 F, in part  27 A allows for an interlocking gutter  27 G to run continuous within multiple assemblies of assembly  27 . Downspout  36  redirects harvested water to the ballast assemblies  32  (see  FIG. 12 ) Below the gutter and mounted adjacent to panel  27 A is the retractable cable closure assembly  27 K providing tension for the closed cable/rod  37 A of the roof to floor tension tie assembly  37 . A simple hooked tool procures the cable/rod  37 A from its retracted position adjacent to panel  27 C near the bottom of the mounting panel  27 H. Part  37 A is pulled down and secured to the bottom of panel assembly  18  (see  FIG. 12 ) providing a tension tie between the assemblies  18 , 19 ,  20  and  21 . 
       FIG. 14  is perspective view of a portion of structure  11  in a deployed mode. Energy collector assembly  26  is shown in a configuration with minimal adjustments made from its transport mode. A sliding base  26 B consisting of two metal angles spanning perpendicular to assemblies  66  and connected by guide bars  26 B- 1  (not shown see  FIG. 17 ) contained within the lower most reveal of assembly  66  and complete a frame that provides adjustment along the longitudinal axis of assembly  66 . An adjustable lower bed  26 C is raised from the lowest or transport mode of three possible elevations to the middle position by the elevation control assembly  26 J (see also  FIGS. 16 ,  17 ) allowing for the rotatable upper bed  26 F to be at an elevation slightly higher than the top of assembly  66 , adding additional flexibility in directional deployment. 
     A pair of primary torsion springs  26 M connect to control arms  26 N that fasten to opposing sides of the panel  26 A and allow pitch adjustments by pivoting from the longitudinal hinge  26 R not shown (see  FIG. 17 ) Adjustable upper bed bracing  26 K provides additional support by a pin that travels along a key of the hinged guide slots  26 L that are positioned on the base of part  26 F as well as at opposing ends of the panel  26 A as shown. 
       FIG. 15  is perspective view of a portion of structure  11  in a deployed mode. Flexibility in deployment of the energy collector assembly  26  is shown through the 90° rotations from the panels in transport mode or that shown in  FIG. 14 . Panel assemblies  26  located adjacent to the roof overhang assembly  27  show the adjustable lower bed  26 C is raised to the middle of three possible elevations, (see  FIG. 17 ) allowing for the rotatable upper bed  26 F to be at an elevation slightly higher than the top of assemblies  27  and  66 . Panel assemblies  26  nearest the fixed roof panel  14  are raised to the highest of three possible positions allowing for deployment clearances as well as avoiding the sun shadow from the down slope assemblies. 
       FIG. 16  is a sectional perspective view through the longitudinal axis of the energy collector assembly  26 . The foldable roof panel assembly  18  is shown in partial section. A rotatable upper Bed  26 F consists of a flat plate with voids creating a circular center with radiating legs integral to a perimeter bed angle substantially completing the upper bed  26 F. Radius outer leg flashing  26 P is disposed perpendicular to the outer edge of the circular flat plate center and features a keyed slot securing  26 F to the adjustable lower bed  26 C by means of the circular outer wall bearing  26 D. 
     A radius inner leg flashing  26 E is disposed perpendicular to the inner void of the circular flat plate center and keeps the assembly weather tight. Hinged guide slots  26 L are screwed to the perimeter bed angle and secure pins of the adjustable upper bed bracing  26 K. An angle of the sliding base  26 B provides mounting and support for the adjustable lower bed bracing  26 G guided by a pin that travels along a key of the bracing guides  26 H positioned perpendicular to the longitudinal axis of the sliding base angles  26 B. 
     The elevation control assembly  26 J controls the elevation of the adjustable lower bed  26 C and consists of a lever arm  26 J- 1  (see  FIG. 17 ), two control arms  26 J- 2  fixed to a through rod  26 J- 3 . Pinned arms  26 J- 4  have a guide pin disposed 90° from the face of the pinned arm and travel in slotted control housings  26 J- 5  (see  FIG. 17 ) mounted to the exterior sides of the sliding base  26 B. Voids in part  26 B match those of the slotted control housings  26 J- 5  and allow for adjustment of the lower bed  26 C. 
       FIG. 17  is an enlarged sectional perspective view showing the elevation control assembly  26 J controlling the energy collector assembly  26 A which is supported by the guide rail assembly  66 . The foldable roof panel assembly  18  is shown in partial section. Guide rail assemblies  66  are attached to tabs (not shown) fastened to the tops of metal rafters  18 B, the roofing membrane  18 E flashes the tabs while the assembly  66  counter flashes the tabs for weather tightness. 
     The elevation control assembly  26 J controls the elevation of the adjustable lower bed  26 C and consists of a lever arm  26 J- 1 , two control arms  26 J- 2  fixed to a through rod  26 J- 3 . Pinned arms  26 J- 4  have a guide pin disposed 90° from the face of pinned arm and travel in a slotted control housings  26 J- 5  mounted to the exterior sides of the sliding base  26 B. Voids in part  26 B match those of the slotted control housings  26 J- 5  and allow for adjustment of the lower bed  26 C. A removable top cap  66 C is secured with set screws to the extruded metal rail  66 A allowing access to the cable pulley assembly  27 M contained within the upper most reveal of the guide rail assembly  66  (see also  FIG. 13 .) 
     A cable  39 C terminates at a fixed eye loop  39 F that is secured to the end cap  66 B of the guide rail assembly  66  ( 39 F,  66 B not shown). Cable  39 C is controlled by the drive gear/lock  40  (not shown, see  FIG. 11 ) and cabling system assembly  39  (see  FIGS. 18 ,  18 A.) Longitudinal hinge  26 Q is screwed to the flat plate of rotatable upper bed  26 F and provides a pivot point for pitch adjustments of the energy collector panel  26 A. 
       FIGS. 18 &amp; 18A  are interior sectional perspective views showing elements of the cabling system assembly  39  during transport mode. Structure  11  is partially shown cut through the fixed roof panel assembly  14  above and the fixed end wall panel assembly  15  on the left. In  FIG. 18A  the foldable assemblies  19 ,  20  and  21  are partially shown in section and provide a point of reference. 
     A foldable roof panel cable  39 B is fixed to a drive gear/lock  40  (not shown, see  FIG. 11 .) The gear/lock  40  controls the deployment of the foldable roof panel assembly  18 . Cable  39 B is redirected 90° from a vertical orientation within the void of assembly  13  to a horizontal direction via roof drive pulley  39 A- 1  which is mounted to the face of horizontal component  13 B of assembly  13 . The cable  39 B continues horizontally in tension and passes through the web of the lateral roof support with pulley housing  23 A and turns 90° via pulley  39 A- 2  ( 39 A- 2  shown in  FIG. 18A ) the cable runs toward the housing panel  23 B of part  23 A where pulley  39 A- 3  (hidden behind housing panel  23 B) alters the cable direction 90° to a downward direction after passing over the cable fulcrum  39 E (see  FIG. 18 ). The cable fulcrum comprised of a rotatable cylindrical bar aligned with the hinge pin of roof hinge  28 . The cable  39 B passes over grooves in the cylindrical bar keeping the cable properly aligned. 
     A return pulley  39 A- 4  (not shown, part  39 A- 4  is mounted to end cap  66 B of the guide rail assembly) returns the cable 180° in an upward direction to the cable fulcrum  39 E and then pulley  39 A- 5  (hidden behind housing panel  23 B) redirecting the cable 90° to a horizontal direction and returning to pulley  39 A- 6  shown mounted on the face of part  23 A in  FIG. 18 . Redirected 90°, the cable  39 B passes through the web of part  23 A and continues horizontally (out of view*) to pulley  39 A- 7  mounted to the face of the opposing part  23 A where cable  39 B is redirected 90° in a horizontal direction to pulley  39 A- 8  (hidden behind housing panel  23 B) which re-directs the cable 90° in downward direction after passing over a cable fulcrum  39 E where it terminates at the fixed eye loop  39 F mounted to part  66 B. (* 23 A,  39 A- 7 ,  39 A- 8 ,  39 F and  66 B not shown.) 
     A foldable floor panel cable  39 D is fixed to a drive gear/lock  40  (not shown, see  FIG. 11 .) The gear/lock  40  controls the deployment of the foldable floor panel assembly  19 . Cable  39 D is redirected 90° from a vertical orientation within the void of assembly  13  to a horizontal direction via floor drive pulley  39 C- 1  which is mounted to face of vertical component  13 A of assembly  13 . The cable  39 D continues horizontally in tension and turns 90° by pulley  39 C- 2  which is mounted to the flange of the longitudinal roof support with pulley housing  23 A. Cable  39 D is redirected downward at angle by drop pulley  39 C- 3  and then returns 180° by floor return pulley within housing  39 C- 4  to pulley  39 C- 5  (not shown). 
     Pulley  39 C- 5  redirects cable  39 D to bottom mount pulley  39 C- 6  (see  FIG. 18A ) cable  39 D continues horizontally (out of view*) to pulley  39 C- 7  mounted to the bottom of the opposing part  23 A where cable  39 D is redirected at an angle to a ‘D’ ring  39 G that terminates cable  39 D. A floor panel hasp assembly  39 H secures the ‘D’ ring  39 G (not shown) and part  39 C- 4  in place during transport. The assembly  39 H comprised of two arms with a ‘J’ hook on one end (visible in  FIG. 18A ) secured to a spring hinge on the concealed end which returns the arms to be disposed flush with finish floor  19 H of assembly  19  when not in use. 
       FIG. 19  is a diagram showing the water storage and handling capabilities of the structure  11 . Reference numerals are not called out on the  FIG. 19  but are listed here for reference back to previous figures. A fixed gray water vessel  44 A is located under the sink/lavatory  44 . A capacity sensor triggers when the vessel  44 A is full and starts a pump to discharge the on-board gray water. The gray water is pumped into the gray water membrane  32 F- 1  of the ballast assembly  32 . 
     At the same time a sump pump is activated at the opposite end of the ballast assemblies pulling a commensurate quantity of water from the potable water membrane  32 F of the ballast assembly  32 . The potable water continues through a purification process before entering the on-board fresh water vessel  54 . Fresh water is available at the sink/lavatory  44  through a reverses osmosis process, with hot water generated by an on-demand heater. The ballast assemblies  32  can be augmented with harvested rainwater (see  FIG. 12 ) or filled on site at the time of deployment. The interior portion of the diagram shows a hydronic water-heating vessel  68  referred to as a closed loop tank. Using in-line heaters and pumps heated water is circulated through the closed loop plumbing system  19 E providing space heating to the occupants of the structure  11 . 
       FIG. 20  is a schematic diagram showing the use of a photovoltaic array (PVA) as the energy collector panel  26 . The PVA may be one of several panel types that can be used in the energy collector assembly  26 . Solar energy striking the PVA is converted to electricity that is stored in batteries for later use in either direct current, DC utilities or alternating current, AC utilities. 
       FIG. 21  is a schematic diagram showing the use of a solar thermal panel as the energy collector panel  26 . Solar energy striking the panel heats the water and through the use of a heat exchanger and pump assembly hot water is directed to a storage vessel for use by utility plumbing fixtures such as for the multiple shower units shown in  FIG. 7A . In an alternative embodiment the storage vessel would be the hydronic water heating vessel  68  referred to in  FIG. 19 , providing the heated water for the closed loop plumbing system  19 E. 
     REFERENCE NUMERALS 
       11 =mobile, expandable, structure 
       12 =body carriage assembly 
       12 A=longitudinal beams 
       12 B=transverse beams 
       12 C=neck 
       12 D=hitch 
       13 =rigid frame assembly 
       13 A=vertical component 
       13 B=horizontal component 
       14 =fixed roof panel assembly 
       14 A=metal ‘I’ rafters 
       14 B=header angle 
       14 C=rigid insulation 
       14 D=diaphragm substrate 
       14 E=flexible roofing membrane 
       14 F=drip edge trim 
       15 =fixed end wall panel assembly 
       16 =fixed wall panel assembly 
       15 A=top and bottom metal channel 
       15 B=metal ‘I’ stud framing 
       15 C=rigid insulation 
       15 D=diaphragm substrate 
       15 E=fiberglass siding 
       16 =fixed wall panel assembly 
       16 A=top and bottom metal channel 
       16 B=metal ‘I’ stud framing 
       16 C=rigid insulation 
       16 D=diaphragm substrate 
       16 E=fiberglass siding 
       16 F=trim with compressible weather-strip 
       17 =fixed floor panel assembly 
       17 A=perimeter metal channel 
       17 B=metal ‘I’ joists/blocking 
       17 C=rigid insulation 
       17 D=diaphragm 
       17 E=closed loop plumbing system 
       17 F=ledger raceway 
       17 G=utility metal floor 
       17 H=metal clip 
       18 =foldable roof panel assembly 
       18 A=skewed metal channel 
       18 B=metal ‘I’ rafters/blocking 
       18 C=rigid insulation 
       18 D diaphragm substrate 
       18 E=roof membrane 
       18 F=drip edge flashing 
       18 G=auxiliary metal angle 
       18 H=metal clip 
       18 J=end wall counter flashing 
       19 =foldable floor panel assembly 
       19 A=perimeter metal channel 
       19 B=metal joists/blocking 
       19 C=rigid insulation 
       19 D=diaphragm 
       19 E=closed loop plumbing system 
       19 F=ledger raceway 
       19 G=perimeter insulation 
       19 H=finish floor 
       19 J=thermal break 
       19 K=metal clip 
       19 L=insulation 
       20 =foldable side wall panel assembly 
       20 A=metal track channel/weather-strip 
       20 B=metal ‘I’ stud framing 
       20 C=rigid insulation 
       20 D=diaphragm substrate 
       20 E=hinged counter flashing 
       20 F=fiberglass siding 
       20 G=outside corner trim 
       21 =foldable end wall panel assembly 
       21 A=metal track channel/weather-strip 
       21 B=metal ‘I’ stud framing 
       21 C=rigid insulation 
       21 D=diaphragm substrate 
       21 E=counter flashing 
       21 F=fiberglass siding 
       22 =longitudinal roof support 
       23 =lateral roof support 
       23 A=lateral roof support with pulley housing 
       23 B=housing panel 
       24 =edge angle 
       25 =support blocking 
       26 =energy collector assembly 
       26 A=energy collector panel 
       26 B=sliding base 
       26 B- 1 =guide bar 
       26 C=adjustable lower bed 
       26 D=circular outer wall bearing 
       26 E=radius inner leg flashing 
       26 F=rotatable upper bed 
       26 G=adjustable lower bed bracing 
       26 H=bracing guide 
       26 J=elevation control assembly 
       26 J- 1 =lever arm 
       26 J- 2 =control arm 
       26 J- 3 =through rod 
       26 J- 4 =pinned arm 
       26 J- 5 =control housing 
       26 J- 6 =fixed guide 
       26 K=adjustable upper bed bracing 
       26 L=hinged guide slot 
       26 M=primary torsion spring 
       26 N=arm 
       26 P=radius outer leg flashing 
       26 Q=longitudinal hinge 
       27 =roof overhang assembly 
       27 A=tapered end panel 
       27 B=operable top panel 
       27 C=fixed soffit panel w/drip 
       27 D=continuous drive rod 
       27 E=hinge 
       27 F=void in part  27 A 
       27 G=interlocking gutter 
       27 H=mounting panel 
       27 J=cross brace 
       27 K=retractable cable enclosure assembly 
       27 L=slat guide channels 
       27 M=cable/pulley assembly 
       28 =roof hinge 
       29 =floor hinge 
       30 =horizontal wall hinge 
       31 =floor access panel 
       32 =ballast assembly 
       32 A=body mount 
       32 B=body 
       32 C=adjustable leg panel 
       32 D=ballast neck 
       32 E=ballast panel 
       32 F=potable water membrane 
       32 F- 1 =gray water membrane 
       32 G=access panel 
       32 H=potable water 
       32 J=gray water 
       32 K=fixed gray water plumbing 
       32 L=fixed fresh water plumbing 
       32 M=electric resistance mat 
       33 =modular wall panel assembly 
       34 =primary leveling pad 
       35 =secondary leveling pad 
       36 =downspout 
       36 A=leader 
       37 =roof to floor tension tie assembly 
       37 A=cable/cross rod 
       37 B=cable fulcrum 
       37 C=body 
       37 D=tension paddle 
       37 E=tension paddle hinge 
       37 F=handle/lock 
       38 =wall panel tension tie assembly 
       39 =cabling system assembly 
       39 A- 1 =roof drive pulley 
       39 A- 2 =roof pulley A 
       39 A- 3 =housing pulley 
       39 A- 4 =return pulley 
       39 A- 5 =return pulley B 
       39 A- 6 =roof pulley B 
       39 A- 7 =roof pulley C 
       39 A- 8 =return pulley C 
       39 B=foldable roof panel cable 
       39 C- 1 =floor drive pulley 
       39 C- 2 =floor pulley A 
       39 C- 3 =drop pulley 
       39 C- 4 =floor return pulley with housing 
       39 C- 5 =floor pulley B 
       39 C- 6 =bottom mount pulley 
       39 C- 7 =bottom mount pulley 
       39 C- 8 =floor pulley C 
       39 D=foldable floor panel cable 
       39 E=cable fulcrum 
       39 F=fixed eye loop 
       39 G=D ring 
       39 H=floor panel hasp assembly 
       40 =drive gear/lock 
       41 =end wall flashing 
       42 =forward enclosure assembly 
       42 A=door panel 
       42 B=hinge 
       42 C=locking mechanism 
       42 D=roof panel 
       42 E=perforated panel 
       42 F=floor panel 
       43 =fuel storage 
       44 =sink/lavatory 
       44 A=gray water vessel 
       45 =incinerating toilet 
       46 =retractable screen assembly 
       46 A=metal slats 
       46 B=longitudinal hinge 
       46 C=center pivot 
       46 D=panel stop 
       46 E=panel head 
       46 F=lock 
       47 =venting skylight 
       48 =running light 
       49 =longitudinal weather-strip 
       50 =remote air conditioning unit 
       51 =mechanical equipment 
       52 =equipment loft assembly 
       52 A=sound dampened floor 
       52 B=sloped side-wall 
       52 C=aperture wall 
       53 =vent stack 
       54 =fresh water vessel 
       55 =energy storage equipment 
       55 A=isolation mounts 
       56 =foldable roof closure panel 
       57 =brake, turn, running light 
       58 =collapsible stair 
       59 =removable handrail 
       60 =end wall tension tie assembly 
       60 A=cable 
       60 B=cable fulcrum 
       60 C=body 
       60 D=tension paddle 
       60 E=tension paddle hinge 
       60 F=handle/lock 
       61 =mechanical equipment vent 
       62 =drainage channel 
       63 =wheel/axle assembly 
       63 A=axle 
       63 B=wheels 
       63 C=leaf spring suspension 
       64 =fender 
       65 =floor extrusion trim 
       66 =guide rail assembly 
       66 A=extruded metal rail 
       66 B=end cap 
       66 C=removable top cap 
       67 =rock guard 
       68 =hydronic heating water vessel 
       69 =series ballast plumbing 
       69 A=fill/overflow 
       69 B=drain 
       70 =water fill-up/drain access panel with lock 
       71 =electrical connection access panel with lock 
       72 =fixed end wall base flashing 
       73 =hinged floor tie assembly 
       73 A=rotatable handle 
       73 B=cam pivot 
       73 C=body 
       73 D=hinge 
       74 =interior partitions 
       75 =extruded metal supports 
       76 =floor drain 
       77 =shower head 
     In operation the sustainable, mobile, expandable structure  11  is towed to or air lifted to an area for deployment. The ground should be reasonably level. The longitudinal and lateral axis of the structure  11  are made level by adjustments of the primary leveling pads  34  as wall as the secondary leveling pad  35  located at the hitch  12 D. 
     Moving to the rear of the structure  11  a worker unlocks the drive gear/lock  40  located at the tapered end panel  27 A of the roof overhang assembly  27 . Using a simple socket type tool with a lever handle the worker lowers the retractable screen assembly  46  by turning the drive gear/lock  40 . Assembly  46  has been used to protect the energy collector assemblies  26  during transport and/or storage. The metal slats  46 A retract to be contained within the void of the roof overhang assembly  27  when not in use. Moving to the side of the structure  11  with the energy collector assemblies  26  now visible a worker begins deployment of the individual assemblies  26 . 
     A worker uses a compass to determine south (in the northern hemispheres, or north in the southern hemispheres.) Referring to a location chart the worker looks up the latitude of the deployed locale. The worker by releasing the primary torsion spring  26 M that controls the arms  26 N sets the pitch of panels  26 A to the optimal angle for solar gain once deployed. The elevation control assembly  26 J is used to adjust the height of the adjustable lower bed  26 C to the middle of three positions (see  FIG. 17 ). This action raises the rotatable upper bed  26 F slightly above both the guide rail assemblies  66  and the roof overhang assemblies  27 , allowing precise alignment for the optimal sun azimuth angle. The procedure is repeated on the other side of the structure  11 . 
     The assembly  26  is flexible enough for situations requiring the panel&#39;s  26 A to be rotated 90° from their transport or storage position (see  FIG. 15 .) In this situation a worker facing the side of the structure  11  raises the adjustable lower bed  26 C to the middle position of every other assembly  26  beginning at one end of the structure. Bed  26 F is now slightly higher than assemblies  27  and  66 . These three assemblies can now be slid temporarily in a downward or vertical direction by means of the sliding base  26 B so as to be disposed slightly over assembly  27 . Again, the worker by releasing the primary torsion spring  26 M that controls the arms  26 N sets the pitch of panels  26 A to the optimal angle for solar gain once deployed. 
     The remaining two assemblies can now be adjusted by raising bed  26 C to the highest position by using elevation control assembly  26 J. This allows the rotatable upper bed  26 F the required clearances from the other assemblies  26  and avoids sun shadow from the down slope assemblies when deployed. Pitch angle is set to the optimal angle and the two assemblies are then slid vertically upward by sliding base  26 B traveling in the guide rail assemblies  66  until they lock into the their position near the fascia of the fixed roof panel assembly  14  (see  FIG. 15 ). The process is repeated on the other side of the structure  11  keeping in mind the direction of the sun. The first three assemblies  26  are now slid vertically in an upward direction by means of the sliding base  26 B to be locked in location as shown in  FIG. 15 . 
     When all the energy collector assemblies  26  have been positioned a worker unlocks the drive gear/lock  40  (see  FIG. 11 ) controlling the foldable roof panel assemblies  18 . A simple tool is used to turn the drive gear raising assemblies  18  through an approximate 90° arc from vertical. Unlocking the remaining drive gear/lock  40  the tool is used to lower the foldable floor panel assemblies  19  through an approximate 90° arc from vertical. 
       FIGS. 18 and 18A  show the cabling system assembly  39  allowing for deployment of assemblies  18 , 19  without the use of motors and/or hydraulics. A worker then goes beneath the structure and fixes a series of hinged floor tension assemblies  73  into a locked position, disposing assemblies  17  and  19  to be flush and level with each other. The remaining secondary leveling pads  35  are rotated 90° from their transport position and deployed to add support along the longitudinal sides of the structure  11 . 
     Unlocking the rear door in the fixed end wall panel assembly  15  a worker reaches in to remove and deploy the collapsible stair  58  and removable handrail  59  allowing access to the structure. The foldable roof closure panel  56  is unlocked and deployed. A co-worker helps to lift the foldable sidewall panel assemblies  20  through an approximate 90° arc to be in a vertical position. The foldable end wall panel assemblies are swung horizontally through an approximate 90° arc to be disposed approximately perpendicular to assembly  20 . A worker standing in each corner where assemblies  20  and  21  meet applies a small upward force to assembly  18  allowing the final positioning of assemblies  20  and  21  which are both retained on the interior of the structure  11  by the auxiliary metal angle  18 G (see  FIG. 13 ). 
     Assembly  20  is retained on the exterior by mounting panel  27 H of assembly  27 , while assembly  21  is retained on the exterior by the end wall counter flashing  18 J (see  FIG. 5 ). Having no loose parts that can be lost or misplaced proper deployment is maintained through the use of a plurality of tension tie assemblies  60 , that help to further fix assemblies  18  to  20  and  21 , assemblies  20  to  21  and assemblies  19  to  20  and  21 . 
     Moving to the exterior of the structure  11  a worker uses a simple hooked tool to procure the cable/cross rod  37 A from the underside of assemblies  27 . The cable is pulled down in a vertical direction and held by the ‘J’ shaped end of the tension paddle  37 D. The paddle  37 D is swung on tension paddle hinge  37 E through an approximate 90° arc where it is held by a shaped back wall of the body  37 C until it is locked by the handle/lock  37 F. The cable/cross rod  37 A is held in tension by passing over the cable fulcrum  38 B and completes the integration of assemblies  18 ,  19 ,  20 , and  21  when the procedure is repeated around the structure  11 . 
     A worker then unsnaps the collapsible ballast assemblies  32  from their transport mode on the underside of both assemblies  19  and  17 . The assemblies  32  drop down to grade where the potable water membranes  32 F are filled by the fill/overflow port  69 A (see  FIG. 12 ). The ballast assemblies have fixed fresh water plumbing  32 L that will allow the perimeter membranes  32 F to fill up, however, the process can be hastened by installing the series ballast plumbing  69  shown in  FIG. 12 . The ballast assemblies  32  provide a substantial vessel for water use and storage during deployment while the perimeter weight factor and wind screening help to counter the effects of wind loading such as up-lift forces on the structure  11 . The shape and size of the assemblies  32  can be modified for specific locations or uses adding another level of flexibility to the structure  11 . Sustainability is further enhanced by downspout  36  and leader  36 A redirecting harvested rainwater back to the membrane  32 F. 
     Another unique feature of the ballast assemblies  32  is that the weight of the water in the ballast assemblies  32  remains essentially the same during periods of deployment. Water use within the structure  11  evacuates a quantity of water from the potable water membrane  32 F, while a commensurate quantity of gray water is then released back to membrane  32 F- 1 .  FIG. 12  shows the volume of assembly  32  being approximately equal between the potable water  32 H and the gray water  32 J due to this process. 
     Flexibility of ballast assemblies is further made possible by various strategies in the handling of the structures gray water. The gray water membrane  32 F- 1 , when full, can be drained by drain  69 B while new potable water is introduced to membrane  32 F. In another scenario, in jurisdictions that encourage the use of gray water for food or plant growth a drip irrigation system can be tied into drain  69 B while an equal quantity of potable water replenishes membrane  32 F. Finally with the use of the on board water purification system (see  FIG. 19 ) and a reverse osmosis process at the sink/lavatory water may be recycled in closed loop system allowing for extended deployments.