Abstract:
The Precision Dive Gear Strong Cottrell SCUBA Buoyancy Compensating System is a product that will forever change the SCUBA community. The system supports SCUBA (Self Contained Underwater Breathing Apparatus) equipment with the use of semi rigid shoulder hooks and rigid back plate (see DWG 25/27) keeping the chest area clear of straps. The system allows users to don and remove SCUBA equipment with speed and ease not found in current industry products. In emergency situations, the equipment can be removed in a fraction of the time that conventional equipment can take. The system is comprised of rigid shoulder hooks, rigid back plate, shoulder pads, back plate pads, waist belt, ballast weight pockets and optional crotch strap. The system is adjustable for a wide range of male and female users. The Back Plate is designed to accommodate single and double tanks and a wide range of equipment and accessories.

Description:
[0001]     A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.  
         [0002]     It is our intention to claim the benefit of the provisional patent as follows.  
         [0003]     application Ser. No. 60/517,831  
         [0004]     Filling Date Nov. 11, 2004  
         [0005]     Confirmation Number 8634  
       CROSS REFERENCE TO RELATED APPLICATIONS  
       [0006]     Not Applicable  
       STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT  
       [0007]     Not Applicable  
       SEQUENCE LISTING  
       [0008]     Not Applicable  
       BACKGROUND OF THE INVENTION  
       [0009]     The Precision Dive Gear—Strong Cottrell—SCUBA Buoyancy Compensator System (hereon in referred to as the SC System) was developed out of necessity and lack of any comparable product in the marketplace. An accident in the SCUBA community sparked the development of this product. A Technical SCUBA diver stepped off a dive vessel without turning on his air supply. Due to the amount of required equipment the diver had donned for the technical activities planned and the current manner in which it was attached to the diver, he could not remove his gear in time, resulting in a death by drowning.  
         [0010]     A product that is quick and easy to remove in the event of an emergency is needed. The current webbing based systems require many interlocking straps to be secured around the torso of the diver to support the equipment. The goal is to remove the majority of these straps while still safely supporting the same amount of equipment.  
         [0011]     A product is needed for female divers that does not compress their breasts. Current dive harnesses compress the breasts of a female divers making them uncomfortable.  
       BRIEF SUMMARY OF THE INVENTION  
       [0012]     The SC System allows a diver to don and ditch their equipment much safer, easier and quicker that any other system on the market today. The system utilizes two ergonomically contoured rigid hooks in conjunction with a rigid back plate to comfortably support the weight of the equipment on the diver&#39;s shoulders. Replacing the current webbing chest straps with these hooks allows the diver to breathe without restriction, therefore, reducing stress and increasing bottom time. The design allows the hooks to be horizontally adjusted for a wide range of different sized divers. Custom tailored padding ensures that the weight of the equipment is evenly dispersed over the shoulders of the user. Ample slots, holes and D-rings have been provided to attach a wide range of equipment. The combination of a waist belt and crotch strap (optional) are used in conjunction with the hooks and back plate to secure the system to the diver&#39;s torso while in and out of the water. Back pads have been designed to allow the user complete access to all of the attachment points on the back plate without removal. The system can be worn on the back or chest of the user, providing a wide range of flexibility in advanced situations. Equipment, such as computers, regulators and gauges, are firmly supported by D-rings at the end of each hook making donning trouble-free. The weight pocket system is fully supported by the back plate making the system more comfortable. The combination of the above invention and associated existing product improvements will make SCUBA diving safer, more comfortable and more appealing to a wide range of individuals. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0000]     Drawing  1 / 27 —Back Plate elevation ( FIG. 1 ), Back Plate section ( FIG. 2 )  
         [0013]      FIG. 1  shows the Back Plate, the central component of the system. The Back Plate is a rectangular piece of 11 Gauge (0.125) 304 Stainless Steel with 1.5 inch dia. radius corners. The plate has many punched holes and slots of different sizes to facilitate the attachment of the hooks, straps, pads and accessories. Additional holes have also been placed in the plate to remove some weight.  
         [0014]      FIG. 2  shows a section of the Back Plate. The middle of the plate has a “hat channel” formed into it. This channel provides additional rigidity and a pocket for the hardware used to secure dual tanks to the plate. This pocket protects the divers back from the associated hardware.  
         [0000]     Drawing  2 / 27 —Hook Plan ( FIG. 1 ), Section ( FIG. 2 ), Hook Tip Detail ( FIG. 3 )  
         [0015]      FIG. 1  shows the Hook flattened view. The Hook is made from {fraction (3/16)} in 304 Stainless Steel. The Hook has been ergonomically contoured in all three axes for the most comfort and adjustment. Four (4) holes and one (1) slot have been designed into the Hook to allow the attachment of the Back Plate, D-Rings and the shoulder pads. This hook can be manufactured from, but not limited to, the following materials: Stainless Steel, Plastic, Aluminum, Steel, Composites.  
         [0016]      FIG. 2  shows the Hook side view.  
         [0017]      FIG. 3  shows the Hook Tip Detail. This detail shows the placement of the two (2) {fraction (3/16)} in holes for the D-Ring Clips (see DWG  5 / 27   FIG. 1 ) and the 1.125 in×0.25 in slot for the padding attachment.  
         [0000]     Drawing  3 / 27 —Range of Motion Detail  
         [0018]     This drawing shows the range of motion that each Hook has. Each Hook can pivot on the Back Plate allowing for an overall adjustment of 9 inches (measured at the vertical quadrant of the 3.5 in radius) at the neck line.  
         [0019]      FIG. 1  shows the maximum outward position, allowing for 12 inches of neck line.  
         [0020]      FIG. 2  shows the mid position, allowing for 8 inches of neck line.  
         [0021]      FIG. 3  shows the maximum inward position, allowing for 3 inches of neck line.  
         [0000]     Drawing  4 / 27 —Hardware Details—Sex Bolts ( FIG. 1 ), Nylon Washer ( FIG. 2 ), D-Ring ( FIG. 3 )  
         [0022]      FIG. 1  shows the dimensional details for the Sex Bolts. These bolts (one with male threads and one with female threads) mate with each other providing a large head on both sides with a slot for adjustment.  
         [0023]      FIG. 2  shows the specification for D-Ring. This D-Ring has a diameter of 2 in and is made from 3 mm 304 SS round stock. These D-rings are commonly used.  
         [0024]      FIG. 3  shows the sizes and materials for the nylon washers used in the assembly.  
         [0000]     Drawing  5 / 27 —Hardware Details—D-Ring Clip ( FIG. 1 ), Keepers ( FIG. 2 )  
         [0025]      FIG. 1  shows the specification for the D-Ring Clip. The clip is made from 340 SS sheet metal. The metal is punched with two (2) {fraction (3/16)} in holes, one on each end. The piece is then bent 180 deg and formed to capture 3 mm round stock. The two {fraction (3/16)} in holes are aligned and utilized to bolt the clip to the Back Plate and the Hooks.  
         [0026]      FIG. 2  shows the specification for the Keepers. The Keepers are punched from 304 SS. The Keepers ⅞ in high×2 ⅜ in wide. Two slots (¼ in×2 ⅛ in) are punched out that run along the long sides of the piece. The slots are equidistant from the middle and the sides of the piece. 2 in webbing is laced through this piece to hold D-rings in place on the webbing. These Keepers are commonly used.  
         [0000]     Drawing  6 / 27 —Shoulder Padding Assembly—Pad Bottom  
         [0027]     This drawing shows the details of the pad bottom layer.  
         [0000]     Drawing  7 / 27 —Shoulder Padding Assembly—Pad Top  
         [0028]     This drawing shows the details of the pad top layer.  
         [0000]     Drawing  8 / 27 —Shoulder Padding Assembly—Base Unit Assembly  
         [0029]     This drawing shows the details of the base unit assembly.  
         [0000]     Drawing  9 / 27 —Shoulder Padding Assembly—Flap A  
         [0030]      FIG. 1  shows the details of flap A.  
         [0031]      FIG. 2  shows the details of flap E.  
         [0000]     Drawing  10 / 27 —Shoulder Padding Assembly—Flap B  
         [0032]      FIG. 1  shows the details of Flap B  
         [0033]      FIG. 2  shows the details for Flap C  
         [0034]      FIG. 3  shows the details for Flap D  
         [0000]     Drawing  11 / 27 —Shoulder Padding Assembly—Base Unit and Flap A &amp; D Assembly  
         [0035]     This drawing shows the details of the assembly of the Base Unit to Flap A and Flap D/E.  
         [0000]     Drawing  12 / 27 —Shoulder Padding Assembly—Base Unit and Flap B &amp; C Assembly  
         [0036]     This drawing shows the details of the assembly of the Base Unit to Flap B and Flap C.  
         [0000]     Drawing  13 / 27 —Shoulder Padding Assembly—Section  
         [0037]     This drawing shows the section of the shoulder pad assembly.  
         [0000]     Drawing  14 / 27 —Back Pad Assembly  
         [0038]      FIG. 1  shows the details for the Back Pad assembly  
         [0039]     This detail shows how all the parts of the back pad are joined.  
         [0040]      FIG. 2  shows the details for the bottom tab.  
         [0041]     The bottom tab is used to mount the back pad onto the back plate. The tab is made from 1.5 in nylon webbing and hook and loop fastener.  
         [0042]      FIG. 3  shows the details for the top tab.  
         [0043]     The top tab is used to mount the back pad onto the back plate. The tab is made from 1 in nylon webbing and hook and loop fastener.  
         [0000]     Drawing  15 / 27 —Back Pad Assembly  
         [0044]     The drawing shows the assembly of layers A,A 1  and A 2 .  
         [0000]     Drawing  16 / 27 —Back Pad Dimensions  
         [0045]     The drawing indicates the dimensions for the back pad piece.  
         [0000]     Drawing  17 / 27 —Back Pad Location &amp; Attachment  
         [0046]      FIG. 1 : Shows the location of the pads on the back plate in elevation.  
         [0047]      FIG. 2 : Shows a section of the back pads in section and the attachment method.  
         [0000]     Drawing  18 / 27  Crotch Strap ( FIG. 1 ), Waist Belt ( FIG. 2 ).  
         [0048]      FIG. 1  shows the specification for the crotch strap. The strap is made from 2 in heavy weight ballistic nylon webbing. One D-ring is sewn into the strap.  
         [0049]      FIG. 2  shows the specification for the Waist belt. The belt is made from 2 inch heavy weight ballistic nylon webbing.  
         [0000]     Drawing  19 / 27 —Weight Pocket Details  
         [0050]      FIG. 1 : Shows the details of Flap A  
         [0051]      FIG. 2 : Shows the details of Flap B  
         [0052]      FIG. 3 : Shows the assembly of Flap A  
         [0000]     Drawing  20 / 27 —Weight Pocket Details  
         [0053]      FIG. 1 : Shows the details for the Pull tab  
         [0054]      FIG. 2 : Shows the details for the pocket sides.  
         [0000]     Drawing  21 / 27 —Weight Pocket Details  
         [0055]      FIG. 1 : Shows the details for Tab C  
         [0056]      FIG. 2 : Shows the details for Tab D  
         [0000]     Drawing  22 / 27 —Weight Pocket Details  
         [0057]      FIG. 1 : Shows the 1 step in pocket assembly.  
         [0058]      FIG. 2 : Shows the 2 nd  step in the pocket assembly.  
         [0059]      FIG. 3 : Shows the 3 rd  step in the pocket assembly.  
         [0000]     Drawing  23 / 27 —Weight Pocket Details  
         [0060]      FIG. 1 : Shows details for Tabs A-C.  
         [0061]      FIG. 2 : Shows the locations for Tabs A-C.  
         [0062]      FIG. 3 : Shows the side view of the pocket  
         [0000]     Drawing  24 / 27 —Weight System Assembly  
         [0063]     The drawing shows the proper attachment of the weight pockets to the Back Plate and the Waist Belt.  
         [0000]     Drawing  25 / 27 —Assembled with single tanks  
         [0064]     The drawing shows the attachment of a single scuba tank to the Back Plate with the use of tank straps through the single tank slots.  
         [0000]     Drawing  26 / 27 —Assemble with double tanks  
         [0065]     The drawing shows the attachment of double tanks to the Back Plate with the use of dual tank bands or other alternate dual tank strapping system. The dual tanks are attached to the Back Plate with the use of bolts and wing nuts.  
         [0000]     Drawing  27 / 27 —Travel Back plate Detail ( FIG. 1  :Travel Back Plate Elevation,  FIG. 2 : Travel Back Plate Section)  
         [0066]      FIG. 1  shows the Travel Back Plate Elevation. The Back Plate is a rectangular piece of 11 Gauge (0.125) 304 Stainless Steel with 1.5 inch dia. radius corners. The plate has many punched holes and slots of different size to facilitate the attachment of the hooks, straps, pads and accessories. Additional holes have also been placed in the plate to remove some weight.  
         [0067]      FIG. 2  shows a section view of the Back Plate. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0068]     The SC System supports SCUBA (Self Contained Underwater Breathing Apparatus) equipment with the use of semi rigid shoulder hooks and rigid back plate (see DWG  24 / 27 ) keeping the chest area clear of straps. The system allows users to don and remove SCUBA equipment with speed and ease not found in current industry products. The system is comprised of the following parts in an assembly: 
        Shoulder Hook     Back Plate     Travel Back Plate     Shoulder Hook Pads     Back Plate Pad     Waist Belt     Weight Pocket     Crotch Strap        
 
         [0077]     Each of the parts above will be discussed in detail below.  
         [0078]     Shoulder Hooks  
         [0079]     The SC System consists of a new and unique support system which incorporates specially designed semi rigid hooks to replace the flexible webbing straps that are industry standard for all other commercially available SCUBA buoyancy compensating harness systems on the market today.  
         [0080]     The current webbing type straps require the user to don his/her equipment in the same manner as a typical “backpack”. One arm is placed through the associated shoulder strap and then the other arm is placed through the second strap supporting the equipment on the users back. This method is difficult and awkward to do with SCUBA equipment and, in many cases, requires the assistance of another person to ensure that no equipment (hoses, equipment, materials, straps, etc.) becomes entangled between the straps and the user. With the use of advanced equipment (ie. a drysuit), the donning of the equipment becomes more difficult due to the added arm valves and loose material. Once the user enters the water, the typical ballistic nylon webbing harness stretches and may require additional problematic adjustment under water.  
         [0081]     Ditching and donning the equipment while under water (which may be required if the user gets entangled in their environment) is much more complicated as the straps and equipment float or sink and move in the surge making it more likely that equipment will get tangled within and around the shoulder straps. The removal of the equipment, in or out of the water, in a typical (non emergency) situation is also a difficult task. In some designs multiple chest straps must be unbuckled prior to the removal of the shoulder straps. These buckles are difficult to locate and un-secure. The situation is compounded when the user has gloves on. The user must contort their body to remove their arm from the first strap and then perform a similar motion to remove the second. In an emergency situation, this requirement compounded with the use of exposure/thermal protection gloves prolongs the removal of the equipment when time is highly valuable. Divers have drowned due to the complexity of removing this standard type of equipment.  
         [0082]     The hooks support the equipment on the user&#39;s shoulders without the use of interconnecting straps to the waist belt or chest straps between each other. To don the SCUBA equipment with the SC System, the user simply places their shoulders under and up into the hooks, secures the waist belt and is ready to go. This process is the same on land or in water and is highly simplified compared to a webbing based system. To remove the equipment above water, the user only needs to be seated, release the waist belt cam buckle and slide down out of the hooks. Alternately, a second person can support the equipment while standing as the user slides down and out of the hooks. The removal of the equipment in water is even easier. The user simply releases the waist belt cam buckle and pushes the hooks up and off their shoulders. This process is accomplished in a fraction of the time it takes to remove the current products.  
         [0083]     The hooks can be manufactured from a number of materials including but not limited to: stainless steel, aluminum, plastics and composite materials.  
         [0084]     The hook has been ergonomically contoured in all three axes for the most comfort and user size flexibility. Multiple radial curves in the X and Y axes are used to maximize the comfort of the hooks on the user (see DWG  2 / 27 ,  3 / 27 ). A contour is positioned directly above the top of the Back Plate to move the hook outward from the neck. A second contour is positioned to bring the hook back in and around the neck and position it centrally on the trapezius muscle. Finally a third contour is positioned to turn the tip of the hook outward away from the sternum of the user and onto the larger portion of the pecturalis major muscle. The hook is also contoured in the Z axis to a radius that follows anthropometric data for the 95 th  % male user (see DWG  2 / 27 ). The radius of the hook then flattens out to reduce pressure on the clavicle and allow for larger pecturalis major muscles and breasts. These contours provide comfort to the user when supporting the SCUBA equipment in and out of the water. The hooks are offered in multiple sizes. The Small hooks are bent to a radius of 3.5 in. The medium and large sizes each increase by a 0.5 in radial increment.  
         [0085]     One version of the hooks are made from {fraction (3/16)} 304 stainless steel plate. Each Hook is a mirror image of the other. They are cut from a flat plate and then rolled to accomplish the contour in the Z axis mentioned above.  
         [0086]     Two (2) {fraction (25/64)} holes are located in the hook (see DWG  2 / 27 ). These two holes are used for attachment to the Back Plate with Sex Bolts (see DWG  4 / 27   FIG. 1 ). These bolts (one with male threads and one with female threads) mate with each other providing a large head on both sides with a slot for adjustment. These parts are commonly used in the industry.  
         [0087]     Each side of the assembly (two (2) sides total left and right) use four (4) {fraction (5/16)} Nylon Washers (see DWG  4 / 27  FIG:  2 ). The Nylon washers act as bearing surfaces during adjustment of the hook. They are also used to avoid scratching and marring of the finished surfaces when the bolts are moved and tightened. These parts are commonly used in the industry.  
         [0088]     Each hook can be positioned in one of four top adjustment holes spaced 0.5 in apart on center. The hook then pivots around this position on the back plate allowing for an overall range of adjustment of 9 inches (measured at the vertical quadrant of the 3.5 in radius) at the neck line (see DWG  3 / 27 ). Slots have been designed into the Back Plate to allow the lower Sex Bolt to slide from right to left in the slot within a given range of degrees. When the desired adjustment has been achieved, the bolts are tightened down for use.  
         [0089]     Two (2) {fraction (3/16)} holes are placed in each hook to attach the D-Rings (see DWG  2 / 27   FIG. 3 ). These D-Rings have a diameter of 2 in and are made from 3 mm 304 SS round stock (see DWG  4 / 27   FIG. 3 ). The D-rings are bent at a 10 deg. angle upward at a point 0.5 in in parallel to the flat side. These parts are commonly used in the industry.  
         [0090]     The D-rings are attached with two clips each. The clip is made from 340 SS 16 Gauge sheet metal (see DWG  5 / 27   FIG. 1 ). The metal is punched with two (2) {fraction (3/16)} holes, one on each end. The piece is then bent 180 deg and formed to capture 3 mm round stock. The two 0.220 holes are aligned and utilized to bolt the clip to the Hooks. Two (2) {fraction (3/16)}×0.5 in long SS pan head screws and nylon insert nuts are used to attach the clips to each Hook. These parts are commonly used in the industry.  
         [0091]     One (1) slot has been designed into the Hook to allow the attachment of the shoulder pad. This slot is used in conjunction with the overlapping hook and loop flaps to keep the shoulder pad from slipping during use. A 1 in wide strip of hook and loop fastener (strap A see DWG  7 / 27 ) is threaded through slot A (see DWG  13 / 27 ) and is attached to flap A. Flap B is then placed on top of flap A and strap A. Placing the strap through the slot ensures the pad will not slide on the hook during use.  
         [0092]     Back Plate  
         [0093]     The SC System incorporates a Back Plate that works in conjunction with the SC Hooks to provide support for SCUBA equipment and adjustability for different sized users (see DWG  1 / 27 ). Commercially available back plates are designed for use with a single piece of nylon webbing. The webbing is laced through slots in the back plate to create arm straps and a waist belt from one piece of webbing. This method provides minimal comfort and time consuming adjustment process.  
         [0094]     The Back Plate is a rectangular piece of 11 Gauge (0.125) 304 Stainless Steel with 1.5 in dia. radius corners (see DWG  1 / 27   FIG. 1 ). The plate has many punched holes and slots of different sizes to facilitate the attachment of the Hooks, Straps, Pads and accessories. The middle of the plate has a “hat channel” formed into it. This channel provides additional rigidity and a pocket for the hardware used to secure dual tanks to the plate. This pocket protects the divers back from coming in contact with the hardware. The Back Plate can be manufactured from a number of materials including but not limited to: stainless steel, aluminum, plastics and composite materials.  
         [0095]     The SC System can be used for single SCUBA tanks, double SCUBA tanks, semi closed circuit and closed circuit re-breather systems.  
         [0096]     The SC Back Plate provides attachment points for the SC Hooks (see DWG  1 / 27 ). These attachment points allow for adjustment of the Hooks to accommodate many different size users. The hooks attach to the plate in two places with two (2) Sex Bolts and four (4) Nylon washers. The upper attachment point for each hook acts as a pivot point (see DWG  1 / 27  Hole A). The lower attachment point is a curved slot that dictates the number of degrees that the Hook can pivot (see DWG  1 / 27  Slot A). The sex bolts are tightened once the desired adjustment is achieved. This compressing the Back Plate and the Hook which prevents the Hooks from moving during use.  
         [0097]     Four (4) 0.391 in dia. holes (see DWG  1 / 27  Hole B) are provided for mounting dual tank bands (see DWG  26 / 27 ). These holes are positioned 11 in apart on center.  
         [0098]     Four (4) 2.25 in long×0.25 in wide slots with 0.25 in dia. corners are provided in the bottom of the plate for the waist belt (see DWG  1 / 27  Slot C). The waist belt is laced through the slots to create an attachment that does not slip or abrade the waist belt webbing. This is a typical mounting method used in current products.  
         [0099]     Two (2) 2.25 in long×0.25 in wide slots with 0.25 in dia. corners are provided (one left and one right) to secure a pony bottle (13-19 cuft SCUBA tank) (see DWG  01 / 27  Slot F). The pony bottle can be attached directly to the Back Plate with a standard tank strap. Moving the pony bottle from the main SCUBA tank (the typical location for a pony bottle to be secured) to one of these alternate locations provides better access to the pony bottle and also decreases the size profile of the diver making him/her more hydro dynamic and less susceptible to entanglement in Kelp, fishing line and guide lines in enclosed environments.  
         [0100]     Six (6) 2.25 in long×0.25 in wide slots with 0.25 in dia. corners are provided to mount a single SCUBA tank to the plate with standard tank straps (see DWG  1 / 27  Slot B). This is a typical mounting method used in current products.  
         [0101]     Four (4) 1.25 in long×0.25 in wide slots with 0.25 in dia. corners are provided for custom tailored padding on the left and right sides of the plate (see DWG  1 / 27  Slot G). These individual pads are mounted with hook and loop fastener strips that are laced through the slots in the Back Plate. This method of attachment ensures that the padding will not move during use.  
         [0102]     Two (2) locations are provided for the mounting of D-Rings at the bottom left and right of the Back Plate (see DWG  1 / 27  Hole C). Each location includes two (2) 0.220 in holes spaced 0.670 in apart. These holes are used to mount the D-Rings with clips. The holes are aligned at a 56 deg. angle from the bottom edge. This angle allows the D-rings to be more accessible during use.  
         [0103]     Two (2) slots are provided to mount a crotch strap (see DWG  1 / 27 ). One (1) 2.25 in long×0.25 in wide slot (Slot H) with 0.25 in dia. corners is used for a 2 in crotch strap. One (1) 1.25 in long×0.25 in wide slot (Slot J) with 0.25 in dia. corners is used for a 1 in wide crotch strap. The user can choose the size that works best for their application. This is a typical mounting method used in current products, although only one of the two sizes is usually provided.  
         [0104]     Two (2) accessory slots are provided for miscellaneous equipment (lift bag, reels, stage bottles, etc.) (see DWG  1 / 27  Slot E). These (2) slots are 1.75 in long×0.375 in wide with 0.375 in dia corners. These slots are large enough to be used with clips or they can be used with webbing.  
         [0105]     Eight (8) 0.391 in dia holes are provided for the attachment of miscellaneous equipment (stage bottles, drysuit inflation bottles, etc.) (see DWG  01 / 27  Hole D). These holes are positioned on each side of the plate, four (4) on each side. This is a typical mounting method used in current products.  
         [0106]     Twenty-six (26) holes of three different sizes (1 inch, 0.75 inch, 0.5 inch) have been designed into the plate to remove excess weight (see DWG  01 / 27 ).  
         [0107]     Travel Back Plate  
         [0108]     The SC system has the option of using a Travel Back Plate that works in conjunction with the SC Hooks to provide support for SCUBA equipment, adjustability for different sized users and a compact size (see DWG  27 / 27 ).  
         [0109]     This smaller plate can only be used with a single tank. A nylon webbing harness is used to attach the plate to the diver via. a waist belt. One nylon tank strap is laced through slots H (see drawing  27 / 27 ) to attach the tank to the plate. An additional tank strap is laced trough the webbing harness providing a second point of attachment to the diver. The harness also allows the diver to support the weight pockets from D-rings on the spine of the harness.  
         [0110]     Shoulder Hook Padding  
         [0111]     Each pad is made from four (4) types of materials as listed but not limited to: 1000 Ballistic Nylon, Ensulite expanded rubber (or other closed cell foam), hook and loop fastener and Grip Fabric #SN12000 1  (or other non slip fabric). The foam is the core of the pad. The foam is sewn to a layer of the nylon and rubber. The nylon is sandwiched between the rubber and the three components are sewn together with nylon thread. Multiple passes are made equidistant from each other perpendicular to the long axis of the piece. These stitches allow the piece to conform to the radius of the Hook. A shell is then built around the foam center encasing the piece in nylon.    1  Grip Fabric #SN12000 is a product of Eastex Products, 36 Finnell Dr., Weymouth, Mass., 02188, (781)337-1211    
         [0112]     Nylon flaps with hook and loop fasteners are sewn to the top of the piece. These flaps (see DWG  13 / 27  FLAP A &amp; B) wrap around the Hook and serve as the primary attachment method for the pad to the Hook. A small segment of hook fastener strip is sewn to the top of the pad. This strip is placed through the Hook slot (DWG  13 / 27   FIG. 1 ) and folded back to be fastened to the flap above. This strip prevents the pad from sliding on the Hood during use. (see DWG  13 / 27 )  
         [0113]     Back Plate Padding  
         [0114]     The back plate pad is made from four materials as listed but not limited to: 1000 Ballistic Nylon, Ensulite expanded rubber (or other closed sell foam), hook and loop fastener, 1 in nylon twill tape and Grip Fabric #SN12000 (or other non slip fabric). The thin pad is a composite of many layers stacked from top to bottom as follows: rubber, nylon, foam and nylon. All of these layers are sewn together around the perimeter with binding tape.  
         [0115]     The pad attaches to the Back Plate in two places. It is attached on the bottom with one hook and loop fastener strip that is laced through slots in the plate and then attaches back to it&#39;s self (see DWG  1 / 27  Slot D). It is attached on the top with two hook and loop fastener strips that slide through two slots in the Back Plate and then attach to each other (see DWG  1 / 27  Slot G). The pad also attaches to the Shoulder Hook pad with hook and loop fastener. This helps ensure that the bottom of the hook padding does not get caught on the user when donning the equipment (see DWG  17 / 27 ).  
         [0116]     Waist Belt  
         [0117]     The waist belt is made from 2 inch heavy weight ballistic nylon webbing (see drawing  18 / 27   FIG. 2 ). The waist belt is a straight length of webbing with a contoured end making it easy to insert into the buckle. The waist belt is provided with a buckle and two (2) D-Rings attached with Keepers.  
         [0118]     Weight Pockets  
         [0119]     Drawings  19 - 24 / 27  show the construction, materials and attachment method for the weight system. Two weight pockets are constructed from 1000 ballistic nylon material, plastic stiffening sheet and hook and loop fastener. The pockets are designed to easily ditch the weights if needed in an emergency. Hook and loop fastener is used to contain the weights in the pocket. A dual overlapping flap system is utilized to safely contain the weight and prevent accidental loss. The pockets are designed to hold up to 7 lbs. of lead weight each in solid or shot form.  
         [0120]     Current weight systems on the market are primarily waist belt mounted and do not provide for attachment of the weight system directly to the back plate. Some systems integrate the support of the shoulder strap into the mounting method for the weights. This method transfers some of the weight to the shoulders leaving the majority of the weight to be carried by the hips. These systems use the waist belt as the primary support for the weight system. This creates a stress point where the waist belt laces through the back plate. During use or removal with the current system, the weight pulls down on the waist belt and causes it to abrade where the metal back plate edge meets the webbing. This abrasion causes premature failure of the waist belt and, if left unchecked, could cause a serious hazard while diving. The weight of the SC Weight pocket is supported by the Back Plate through the use of a clip.  
         [0121]     A clip is sewn into the back of the pocket to allow for the weight of the pocket and ballast to be supported by the back plate. A piece of 1.5 in webbing is placed through the solid ring of the clip and folded back on itself. Loop fastener is sewn to both sides of the webbing and then the assembly is sewn to the pocket on the top end only to create tab A. Loop fastener is sewn to both sides of an additional piece of 1.5 in webbing. This piece is then sewn to the weight pocket again on the top only to create tab B. Hook fastener is sewn to one side of four (4) pieces of 1.5 in webbing creating Tab C. Two of these pieces are sewn in line with tab A and B to create an interlocking sandwich of tabs (ie. Tab C, Tab A, Tab C). To install the pocket, the user simply places the waist belt in-between the back of the pocket and Tab C. The tabs are then folded over and locked in place with the hook and loop fastener and then the user attaches the clip to the hole provided in the back plate. Now the user can unzip the top of the pocket and insert the desired weight in lead shot bags or solid lead weight.  
         [0122]     Supporting the weight system from the Back Plate takes the weight off of the users hips and makes for a more comfortable fit. This system also prevents the waist belt from sagging and makes the donning process easier.  
         [0123]     Crotch Strap—SC-CS  
         [0124]     Drawing  18 / 27   FIG. 1  shows the specification for the crotch strap. The strap is made from 2 in heavy weight ballistic nylon webbing. A 3.5 in loop is sewn into one end. This loop is used to secure the strap to the waist belt. The waist belt is passed through the loop prior to the waist belt being secured by the cam buckle. Two (2) D-Rings and two (2) Keepers are located on the strap. The strap is attached to the back plate by threading the webbing though the provided slot (see DWG  1 / 27  Slot H). The tail of the webbing is then laced back through a keeper to secure it in place.