Patent Publication Number: US-8973321-B2

Title: Two-part molding system

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the benefit of U.S. Provisional Application No. 61/798,302 filed on Mar. 15, 2013, the entirety of which is incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to a two-part molding system. The present invention more specifically relates to a two-part molding system for providing a compression mount with the floor at the base of a wall, and methods for making and installing such a two-part molding system. 
     2. Description of Prior Art 
     Baseboards and wall bases are known in the art as molding or trim applied at the base of a wall to complete the junction between the wall and the floor. These wall bases serve to decorate, as well as to protect, the wall from scuffing and impact from feet, machines such as vacuum cleaners, wheelchairs, dollies, wheeled furniture, etc. Furthermore, the wall bases protect the edge of the carpet or flooring adjacent to the wall. Moldings are also used to hide various imperfections and inconsistencies in a wall finish, such as where walls are not finished all the way to the floor, low spots, wall openings and the like. 
     Wall base moldings are commonly used where a wall meets a floor to provide a neat and acceptable appearance at the wall-floor juncture. Moldings are made from a variety of materials, using a variety of methods as would be understood by those skilled in the art. For example, moldings are commonly made from a polymeric material such as polyvinyl chloride (PVC) that is extruded via conventional extrusion or injection molding processes known in the art. Extruded PVC is typically a cost-effective building material that can be provided in a variety of colors and decorative styles. 
     Referring to  FIGS. 1-4 , prior art wall base moldings are shown. As demonstrated in  FIGS. 1-4 , prior art wall base moldings are commonly used in a variety of settings, including environments which are considered “sanitary-sensitive” environments such as in hospitals and nursing homes. One particular ongoing issue that exists in hospitals and nursing homes, for example, is secondary infection to patients and personnel. As shown in  FIGS. 1-4 , damaged wall base moldings  1  can include a toe base  2  that does not sufficiently fit or conform evenly to the underlying floor. Over time, damage at the toe base  2  of conventional prior art wall base moldings  1  can worsen due to normal wear-and-tear, or can be exacerbated from floor buffers, hospital carts, wheel chairs, normal shrinkage and hospital machines and equipment. In turn, undesirable elements such as dirty water from washing/cleaning the floor, dirt, moisture, and even bodily fluids can accumulate under the damaged toe base  2 . 
     One prior art method for addressing the issue of cleanliness is the use of a molding base that is integral with the floor. However, this type of system can be disadvantageous in certain settings of use due to the relative high cost of installation and manufacture. Moreover, a molding base that is integral with the floor is expensive to replace since the entire integral molding base and floor would typically have to be replaced. 
     Another issue that exists in hospitals and nursing homes, for example, is the relative poor aesthetic appearance of traditional wall bases and cove bases. It is well known that it is desirable for health care facilities including hospitals and nursing homes to advantageously employ aesthetically-appealing environments to improve the morale and psychological state of the patients. However, aesthetically-appealing building materials are typically inherently more expensive. Due to the inevitable high risk of damage to the wall base and cove base in hospitals and nursing homes, in turn requiring more frequent repair and/or replacement, such facilities typically use lower end materials which have a relatively poor appearance. As discussed in greater detail below, the present invention addresses this issue by allowing the use of a more durable and more aesthetically-pleasing wall base in combination with a removable and relatively less expensive molding piece. 
     One known type of removable molding includes a mechanical hook and loop fastening system, such as VELCRO® brand strips for mounting a molding to an adjacent wall. In this type of arrangement, one of the portions or strips of the fastening system is affixed to the wall and the other is affixed to the molding. The molding is then mounted to the wall by joining the fastening strips to one another. Such fastening systems tend to be disadvantageous since the connection between the respective hook and loop mounting strips tends to weaken over time, thereby decreasing an effective mounting between the molding and the adjacent wall. 
     Another known type of removable two-part base molding system including a mounting portion and a molding portion which can be affixed to one another by overlapping corresponding edges, such as that shown in U.S. Pat. No. 6,729,087 (Sauter). Such systems can be disadvantageous since the connection between the mounting portion and a molding portion in such systems tends to not be firm against the underlying floor such that even very small gaps can remain between the molding and the underlying floor. 
     There is therefore a need for a molding system that can be removable that also facilitates ease of installation, repair, maintenance and replacement. Such a system should further promote a sanitary environment. Moreover, such a system should be easy and cost effective to manufacture, to ship, install, maintain and replace. The present invention fills the need for such a molding system. 
     SUMMARY OF THE INVENTION 
     A two-part molding system for mounting, for example a wall base, to a wall adjacent to a floor includes a mounting portion (or a backing portion) and a removable, mechanically fastened and installed molding portion. The molding portion can be removed for replacement, repair or for change in aesthetics. 
     The mounting portion defines a main body having a front face and a projection or abutment, such as a notch, flange, lip or ledge for defining a groove, recess or abutment surface, integrally formed with the mounting portion, or any other comparable surface, including an overhanging surface which would be conventional in the art. Alternatively, the projection or abutment can be mechanically fastened to the mounting portion after manufacture of the individual components. The projection or abutment is located at a desired location on the front face of the mounting portion at a particular predetermined height above the floor level. The projection or abutment includes a receiving section or abutment surface which defines the groove, recess or ledge for receiving a corresponding engaging section of the molding portion. 
     The molding portion is removably mounted to the mounting portion. The molding portion defines a main body having a top end defining an engaging section for engaging the corresponding receiving section of the overlying or overhanging projection or abutment. It should of course be appreciated that, alternatively, the notch can comprise the engaging section while the top end of the molding portion defines a receiving section. 
     The respective receiving section and engagement section are configured to correspond to, and securely engage with one another regardless of the particular desired configurations. In an embodiment of the present invention, the receiving section of the notch is angled substantially inwardly at about 0°-90°, or even at about, 30°-60°, or even further at about 40°-50°, and still further at about 45°, while the engaging section of the molding portion is angled substantially outwardly in a corresponding manner at about 0°-90°, or even at about, 30°-60°, or even further at about 40°-50°, and still further at about 45°. It should of course be understood, as indicated above, that the underside of the projection or abutment may be angled substantially outwardly at a defined angle (in this case the engaging section), while the respective counterpart portion of the molding portion may be angled substantially inwardly at a corresponding defined angle (in this case the receiving section). It should also be understood that the projection or abutment can be squared or flat (i.e. 90° relative to the vertical surface of the mounting portion) in which case the corresponding molding portion comprises a substantially corresponding abutment surface for engaging with the projection or abutment, or may alternatively be arced, rounded, triangular or any other conventional configuration known in the art. 
     The molding portion can be advantageously mounted to the mounting portion to define a space or gap between the molding portion and the mounting portion mounted against the wall. This space can advantageously and optionally be employed to accommodate additional adhesion materials and/or filling agents, such as a caulking agent. Preferably, an anti-microbial caulk or anti-bacterial caulk may be employed to further improve and enhance the sanitary environment. 
     An object of this invention is to provide a two-part molding system which can be manufactured relatively quickly and easily. 
     A further object of this invention is to provide a two-part molding system which can be installed, maintained and replaced at the base of a wall relatively quickly and easily. 
     Another object of this invention is to provide a two-part molding system which can be manufactured, installed, replaced and maintained at the base of a wall in a cost-effective manner. 
     Another object of this invention is to provide a two-part molding system which provides an improved sanitary environment. 
     Yet another object of this invention is to provide a two-part molding system which provides an improved aesthetic appearance. 
     Still yet another object of this invention is to provide a two-part molding system which is relatively inexpensive to manufacture. 
     An additional object of this invention is to provide a two-part molding system which can be employed within sanitary environments, such as hospitals, nursing homes and the like. 
     It is an additional object of this invention to provide a two-part molding system which provides an improved flush juncture between the floor and the base of the wall. 
     Still yet another object of this invention is to create an improved juncture at the base of a wall relative to the adjacent floor. 
     Yet another object of the present invention is to provide a two-part molding system which can advantageously be installed around inside corners and outside corners of walls. 
     These and other objects will become apparent from the following description of a preferred embodiment taken together with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention may take physical form in certain parts and arrangement of parts, a preferred embodiment of which will be described in detail in the specification and illustrated in the accompanying drawings which form a part hereof, and wherein: 
         FIGS. 1-4  are perspective views of prior art molding systems. 
         FIG. 5A  is a cross-sectional view of one embodiment of the two-part molding system according to the present invention. 
         FIG. 5B  is a side view of another embodiment of the mounting portion of the two-part molding system according to the present invention. 
         FIG. 6  is a side view of a molding portion of the two-part molding system according to the present invention, as shown in  FIG. 5A . 
         FIG. 6A  is a side view of an alternative embodiment of the molding portion of the two-part molding system according to the present invention, as shown in  FIG. 5A . 
         FIG. 6B  is a side view of another alternative embodiment of the molding portion of the two-part molding system according to the present invention, as shown in  FIG. 5A . 
         FIG. 6C  is a cross-sectional view of another embodiment of the two-part molding system according to the present invention. 
         FIGS. 7-10  are perspective views of one embodiment of the two-part molding system according to the present invention, as shown in  FIG. 5A . 
         FIGS. 11 and 12  are perspective views of another embodiment of the two-part molding system according to the present invention, as shown in  FIG. 5A . 
         FIGS. 13-18  are perspective views of one embodiment of the two-part molding system according to the present invention, as shown in  FIG. 5A  and as applied around inside corners or outside corners of walls. 
         FIG. 19  is a cross-sectional view of an alternative embodiment of the two-part molding system according to the present invention. 
         FIG. 20  is cross-sectional view of another alternative embodiment of the two-part molding system according to the present invention. 
         FIG. 21  is a cross-sectional view of another alternative embodiment of the two-part molding system according to the present invention. 
         FIG. 22  is a cross-sectional view of another alternative embodiment of the two-part molding system according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     It should be understood that the present invention may include embodiments in various forms. However, there is shown in the drawings and hereinafter described various particular embodiments for the present invention. It should be understood that the present invention is not limited to the embodiments described herein. 
     Referring to the drawings, which are used for illustration and not to limit the invention therewith,  FIG. 5A  shows a cross-sectional view of a two-part, separable molding system  10  according to an embodiment of the present invention. As shown in  FIG. 5A , two-part molding system  10  is generally a two-part flooring system comprising a wall mounting portion  12  and a molding portion  14 . The wall mounting portion, such as for example, a wall base, may be permanently or semi-permanently installed against an adjacent wall (“W”) to which the two-part, separable molding system  10  is secured. As explained below, molding portion  14  may be an insert portion that can be manually engaged with mounting portion  12  by appropriate mechanisms. The molding portion  14  can be easily and readily mounted to the mounting portion  12  and can be easily removed from the mounting portion  12  as required and desired. 
     Mounting portion  12  is a relatively rigid structural component as conventional in the art that can be mounted to the wall W using any number of methods conventional in the art, such as glue, adhesives, screws and the like. 
     Mounting portion  12  may be any conventional construction material employed in the art employed at the base of a wall having functional and/or aesthetic purposes, such as but not limited to wall bases, trim, molding, and the like and may comprise any material conventional in the art, such as but not limited to flexible plastic, thermoplastic, vinyl, PVC, rubber, wood, faux wood and the like. Mounting portion  12  may be manufactured by methods conventional in the art such as but not limited to extrusion or injection molding methods. As shown in  FIG. 5A , mounting portion  12  may be a wall base such as that shown and described in U.S. Design Pat. No. D484,253 incorporated by reference herewith in its entirety. For purposes of explanation, mounting portion  12  may be referred to hereinafter as wall base  12 . However, it should be appreciated that the wall base shown in  FIG. 5A  is shown and described for purposes of describing one embodiment of the present invention, and the flooring system according to the present invention is not limited to employment with a wall base. 
     As shown in  FIG. 5A , mounting portion or wall base  12  comprises a top surface  12   a , a bottom surface  12   b , a front face  12   c  and a back side  12   d . Top surface  12   a  may comprise, for example, an angled surface as shown in  FIG. 5A  for aesthetic purposes but is not limited to such a configuration. Top surface  12   a  may be substantially flat, curved, angled or have any other desired decorative configuration as commonly employed in the art. Bottom surface  12   b  is preferably a substantially flat surface for placement against the underlying floor (“F”) and intimately engages the underlying floor (“F”). Back side  12   d  is a substantially flat surface or substantially ribbed surface for placement against the adjacent supporting wall W as known in the art. Front face  12   c  is preferably a substantially flat surface, but may further include decorative portions such as a decorative groove  16 . It should be understood that decorative groove  16  is provided for aesthetic purposes, and may comprise any configuration as conventional in the art such as squared, rounded, curved inwardly, curved outwardly, and the like. It should also be understood that multiple decorative grooves  16  may be provided for aesthetic purposes, and may comprise any one or more configurations as conventional in the art such as squared, rounded, curved inwardly, curved outwardly, and the like. For example, as shown in  FIG. 5A  groove  16  can be a decorative groove having a squared or rectangular cross-section. Alternatively, for example, as shown in  FIG. 5B  groove  16 A can be a decorative groove having an arced or circular cross-section. 
     Still referring to  FIG. 5A , front face  12   c  comprises an overhanging projection or abutment, such as a notch, flange, or lip  18  for defining a receiving area, such as a recess, groove, ledge or abutment surface, for receiving and securing molding portion  14  in place. It should be appreciated that the overhanging portion of the projection  18  can be omitted such that the projection  18  would be substantially flat or squared for defining a ledge rather than a groove or recess. As discussed herein, overhanging projection or abutment structure  18  will be referred to as a notch. It should of course be appreciated that the presently claimed invention need not be limited to a notch per se, and any other comparable overhanging projection or abutment surface which would be conventional in the art may be advantageously employed in accordance with the present invention. 
     As shown in  FIG. 5A , notch  18  is a substantially outwardly and downwardly extending notch  18  relative to front face  12   c  of wall base  12  (i.e., an overhanging projection or abutment), and comprises a contoured surface, such as a curved surface  18   a , an angled tip  18   b  and a receiving female end  18   c . It should be understood that notch  18  may comprise any desirable or appropriate configuration so long as notch  18  sufficiently engages with and secures molding portion  14  at receiving female end  18   c , including but not limited to angled, squared, curved and the like. As shown in  FIG. 5A , angled receiving end  18   c  and angled tip  18   b  define an angled surface therebetween. As shown in  FIG. 5A , receiving female end  18   c  comprises an inwardly angle of about between 40°-50°, but can be angled inwardly at about 0°-90°, or even at about 30°-60°, or even further preferably at about 45°, for engaging with and securing molding portion  14  having a corresponding angled end or substantially corresponding angled end (described further below). It should be understood that receiving female end  18   c  is not limited to an inwardly angled receiving end but rather may comprise any alternative configuration such as but not limited to outwardly angled, curved, squared, triangular and the like, or any combination thereof. 
     Still referring to  FIG. 5A  as well as  FIG. 6 , two-part molding system  10  further comprises molding portion  14 . Molding portion  14  may be any conventional construction device employed in the art, such as but not limited to trim, a molding, flooring toe and the like and may comprise any material conventional in the art, such as but not limited to flexible plastic, thermoplastic, vinyl, rubber, wood, PVC, faux wood and the like. Molding portion  14  may be manufactured by methods conventional in the art such as but not limited to extrusion or injection molding methods. As shown in  FIG. 5A , molding portion  14  may be a flooring toe that is manually secured to mounting portion  12  by mechanical adhering products known in the art such as but not limited to caulk, adhesives, two-sided tape and the like. However, it should be appreciated that the molding portion or toe  14  shown in  FIG. 5A  and  FIG. 6  is shown and described for purposes of describing one embodiment of the present invention, and the flooring system according to the present invention is not limited to employment with a flooring toe. In accordance with the present invention, molding portion  14  may comprise the same material or a different material as that of mounting portion  12 . 
     As shown in  FIG. 5A  and  FIG. 6 , molding portion  14 , in one embodiment, comprises a top surface  14   a , a front face  14   c , a front curved surface  14   d , a rear curved surface  14   e , a back side  14   b  and a toe  14   f . Top surface  14   a  may comprise, for example, an outwardly/upwardly angled surface as shown in  FIG. 5A  for sufficiently engaging with and securing into receiving female end  18   c  of notch  18 . As shown in  FIG. 5A , top surface  14   a  comprises an outward angle of about between 40°-50°, but can be angled outwardly at about 0°-90°, or even at about 30°-60°, or even further preferably at about 45°, for engagement with and securing into female receiving end  18   c  of notch  18 . It should be understood that the particular configuration and/or angle of top edge  14   a  is determined by being a corresponding, or substantially corresponding, surface configuration and/or angle to that of female receiving end  18   c  and angled tip  18   b  of notch  18  which define an angled surface therebetween. In other words, the top edge  14   a  of the molding portion may also comprise any alternative configuration as conventional in the art such as inwardly angled, curved, rounded, squared, triangular and the like. 
     Alternatively, it should be appreciated that back side  14   b  of molding portion  14  may abut both the adjacent mounting portion  12  and underlying floor F at respective right angles  15  ( FIG. 6A ). 
     As shown at  FIG. 6B , it should be appreciated that the top surface of the molding portion  14 , shown at reference number  140  in  FIG. 6B , may comprise an upwardly angled surface extending to a substantially flat top side or flat tip  150  for engaging with the substantially corresponding angled surface of the mounting portion at notch  18 . It should be appreciated, for example, that flat top section or flat tip  150  can advantageously facilitate a sufficient engagement between the angled top surface  140  and the opposing corresponding angled face of notch  18  at the notch receiving end  18   c . As shown in  FIG. 6B , the width of flat tip  150  is less than ½ the thickness of molding portion  14  as measured between back side  14   b  and front face  14   c.    
     As shown at  FIG. 6C , an alternative embodiment of the two-part molding system according to the present invention is shown and described. As shown therein, mounting portion  12  remains the same as described above and as shown in  FIG. 5A . However, molding portion  14  is employed as described above and as shown in  FIG. 6B . As shown therein, molding portion  14  comprises upwardly angled surface  140  extending to substantially flat top side or flat tip  150  for engaging with a substantially corresponding female surface of the mounting portion at angled notch underside  18   c . It should be appreciated, for example, that flat top section or flat tip  150  can advantageously facilitate a sufficient engagement between angled top surface  140  and the opposing corresponding angled face of the notch at the notch underside  18   c  to sufficiently affect a downwardly compression mount in accordance with the present invention. 
     Back side  14   b  is preferably a substantially flat surface for direct placement against and for abutting against the portion of front face  12   c  of wall base  12  directly underneath notch  18 . Molding portion  14  may be secured to mounting portion  12  by mechanical adhering products known in the art such as but not limited to glue, adhesives, two-sided tape and the like. Front face  14   c  is preferably a substantially flat surface extending downwardly from underneath notch  18 . Substantially flat back side  14   b  extends downwardly into rear curved surface  14   e  while substantially flat front face  14   c  extends downwardly into front curved surface  14   d . Opposing front curved surface  14   d  and rear curved surface  14   e  extend outwardly relative to wall base  12  and merge to define toe  14   f . Toe  14   f  is an extending toe which tapers in thickness from the body of molding portion  14  to substantially the level of the floor, such as for example tapers from about 0.125 inches to about 0.080 inches or less to be substantially flush with the level of the floor. It should be appreciated that the instant description of molding portion  14  is for exemplary purposes only and the present invention is not limited to a molding portion  14  as described as such. 
     As shown in  FIG. 5A , notch  18  is integrally formed with wall base  12 , such as by conventional extrusion or injection molding methods, but may alternatively be secured to wall base  12  via conventional adhering products such as by an adhesive. Notch  18  is configured at any desired distance on wall base  12  front face  12   c  above the floor F, such as from about 1-3 inches above the underlying floor F. According to the present invention, molding portion  14  comprises a height that is generally comparable and equivalent to the distance of notch  18  from floor F. For example, notch  18  can be about 1¼ inches from the floor F as measured as the approximate distance from receiving female end  18   c  to the floor F. The corresponding molding portion  14  therefore comprises an approximately equivalent height as measured from the engagement between angled top surface  14   a  and receiving female end  18   c  to the horizontal plane of toe  14   f  (“P” in  FIG. 5A ). In other words, the height of molding portion  14  should be such that when secured into place against wall base  12 , a compression mount is facilitated between toe  14   f  and the underlying floor F in a flush arrangement. Alternatively, molding portion  14  may advantageously comprise a height approximately about 0-25% greater than the height of notch  18  as measured from female receiving end  18   c  to the floor F, and preferably approximately about 0-10% greater than the height of notch  18  as measured from female receiving end  18   c  to the floor F. 
     In accordance with the present invention, as shown in  FIG. 5A , the front face  12   c  of mounting portion  12  and the front face  14   c  of molding portion  14  are substantially planar with each other in a vertical orientation when molding portion  14  is secure in place relative to mounting portion  12 . It should be appreciated, however, that the present invention is not necessarily limited to a configuration in which the front face  12   c  of mounting portion  12  and the front face  14   c  of molding portion  14  are substantially planar with each other in a vertical orientation when molding portion  14  is secure in place relative to mounting portion  12 . 
     In accordance with the present invention, as shown in  FIG. 5A , molding portion  14  comprises a thickness at top surface  14   a  as conventional in the art for easily applying and securing molding portion  14  to mounting portion  12 . As shown in  FIG. 5A , the thickness of molding portion  14  at top surface  14   a  can be such to define an overhang of notch  18  relative to where molding portion  14  engages notch  18 . It should of course be appreciated that the thickness of molding portion  14  at top surface  14   a  can be such that there is no overhang of notch  18  relative to where molding portion  14  engages notch  18 . In other words, according to the present invention, the thickness of molding portion  14  at top surface  14   a  as defined from back side  14   b  to front face  14   c  may be between about 50-100% of the thickness of notch  18  (i.e., the overhanging projection or abutment, such as a notch, flange, or lip  18  for defining a receiving area, such as a recess, groove, lip or abutment surface, for receiving and securing the molding portion  14 ). It should also be appreciated that the thickness of the rest of molding portion  14 , including front face  14   c  and toe  14   f , may be any thickness as desired including thicker than the thickness of notch  18  ( FIGS. 11 and 12 ). 
     Referring to  FIGS. 11 and 12 , an alternative embodiment of the two-part molding system is shown and described. The primary features of the two-part molding system  10  shown and described in  FIG. 5A  are maintained in the embodiment set forth in  FIGS. 11 and 12 . However, in an alternative embodiment molding portion  40  ( FIGS. 11 and 12 ) can comprise a height approximately about 0-25% greater than the height of notch  50  ( FIGS. 11 and 12 ) as measured from female receiving end  18   c  to the floor F, and preferably approximately about 0-10% greater than the height of notch  50  ( FIGS. 11 and 12 ) as measured from female receiving end  18   c  to the floor F. 
     As will be understood, it is advantageous that the engagement between mounting portion  14  and notch  18  at female receiving end  18   c  creates a strong compression engagement in a substantially downwardly manner (“X” in  FIG. 5A ) between molding portion  14  and the underlying floor F. In other words, the molding portion  14  is secured to mounting portion  12  at notch  18  in such a manner that molding portion  14  compresses downwardly onto the floor F at the juncture of toe  14   f  with the floor F. The downwardly compression mount affects the mounting portion  14  to be substantially flush with the floor F, thereby creating a seemingly seam-less or gap-less transition between the two-part molding system  10  and the floor F. The compression juncture between molding portion  14  and the floor F also affects a tight seal with the floor and accommodates any slight changes in the floor height. This in turn facilitates the prevention of as much undesirable dirt, moisture, debris, or any other elements as possible from entering gaps and accumulating behind the two-part molding system  10 . 
     As can be readily seen in  FIG. 5A , the configuration of the engagement of molding portion  14  against notch  18  can, in an embodiment, create a gap or space  22  between rear curved surface  14   e  and mounting portion  12 . This gap or space  22  extends the length of the installed two-part molding system  10 . To this end, gap or space  22  can be optionally filled with a filling material such as but not limited to beaded caulk, silicone, foam, anti-microbial beaded caulk, anti-microbial silicone, anti-microbial foam, anti-bacterial beaded caulk, anti-bacterial silicone, anti-bacterial foam, or any other comparable filling material(s) conventional in the art. 
     As set forth above, the molding portion  14  may be removable from mounting portion  12  as desired with minimal effort and without damage to the permanently or semi-permanently mounted mounting portion  12 . This advantageously reduces the time and expense in maintaining, replacing or repairing the two-part molding system  10  as a whole due to damage or desired aesthetic changes. At the same time, the permanently or semi-permanently mounted mounting portion  12 , such as a relatively more expensive wall base, may remain in place and need not be replaced thereby further reducing time and expense in the maintenance, replacement or repair of the overall two-part molding system  10 . 
     It should be appreciated that the mounting portion  12  may comprise any particular dimensions as required by the particular application depending on aesthetics, required durability, construction standards such as LEED standards, etc. For example an alternative example, mounting portion  12  as a wall base may have a height of at least 4 inches. For example, in a sanitary environment such as a hospital or nursing home, mounting portion  12  as a wall base may have a height of at least 6 inches. 
     Referring to  FIGS. 13-18 , it should also be appreciated that two-part molding system  10  may advantageously be installed around inside corners and outside corners of walls while maintaining the appropriate downward compression engagement between the molding portion and the underlying floor creating a substantially flush engagement between the molding and the floor. 
     Referring to  FIG. 19 , yet another alternative embodiment of the two-part molding system of the present invention is shown and described at  200 . The embodiment shown in  FIG. 19  generally comprises the same structural features as described in detail above, including a mounting portion  202 , a molding portion  204  and an overhanging projection or abutment  206  for defining a groove or recess  208 . In the embodiment of  FIG. 19 , projection or abutment  206  is a substantially downwardly extending projection or abutment. In other words, the outer surface of the projection or abutment  206  may be substantially planar with the outer surface of mounting portion  202 . As shown in  FIG. 19 , groove or recess  208  comprises a substantially squared or flat configuration such that the innermost portion of groove or recess  208  meets the adjacent surface of the mounting portion  202  at a substantially 90° right angle. In this case, molding portion  204  comprises a top surface  210  having a substantially corresponding flat or squared configuration, as depicted in  FIG. 19 . It should be appreciated that in accordance with the present invention, the downwardly extending projection or abutment  206  may be omitted in which case groove or recess  208  would be a planar abutment surface, such as a ledge, being substantially perpendicular to the vertical surface of the mounting portion  202 . As depicted in  FIG. 19 , the downwardly extending projection or abutment  206  is shown as substantially flat but can of course be angled or rounded, or comprise any other downwardly extending configuration as desired. 
     Referring to  FIG. 20 , yet another alternative embodiment of the two-part molding system of the present invention is shown and described at  300 . The embodiment shown in  FIG. 20  generally comprises the same structural features as described in detail above, including a mounting portion  302 , a molding portion  304  and an overhanging projection or abutment  306  having a substantially downwardly extending tip  308  for defining a groove or recess  310 . As discussed above, it should be appreciated that in accordance with the present invention, the downwardly extending tip  308  may be omitted in which case groove or recess  310  would be a planar abutment surface, such as a ledge, being substantially perpendicular to the vertical surface of the mounting portion  302 . In the embodiment of  FIG. 20 , projection or abutment  306  is a substantially outwardly extending projection or abutment comprising a substantially squared cross-sectional outer surface configuration, but of course it should be appreciated that the outer surface configuration can be any such configuration as desired including curved. As shown in  FIG. 20 , groove or recess  310  also comprises a substantially squared or flat configuration such that the innermost portion of groove or recess  310  meets the adjacent surface of the mounting portion  302  at a substantially 90° right angle. In this case, molding portion  304  comprises a top surface  312  having a substantially corresponding flat or squared configuration, as depicted in  FIG. 20 . As depicted in  FIG. 20 , the downwardly extending tip  308  is shown as substantially flat but can of course be angled or rounded, or comprise any other downwardly extending configuration as desired 
     Referring to  FIG. 21 , yet another alternative embodiment of the two-part molding system of the present invention is shown and described at  400 . The embodiment shown in  FIG. 21  generally comprises the same structural features as described in detail above, including a mounting portion  402 , a molding portion  404  and a projection or abutment  406  having a substantially downwardly extending tip  408  for defining a groove or recess  410 . In the embodiment of  FIG. 21 , projection or abutment  406  is a substantially outwardly extending projection or abutment comprising a substantially contoured or curved cross-sectional outer surface configuration, but of course it should be appreciated that the outer surface configuration can be any such configuration as desired including squared. As shown in  FIG. 21 , groove or recess  410  also comprises a substantially squared or flat configuration such that the innermost portion of groove or recess  410  meets the adjacent surface of the mounting portion  402  at a substantially 90° right angle. In this case, molding portion  404  comprises a top surface  412  having a substantially corresponding flat or squared configuration, as depicted in  FIG. 21 . As depicted in  FIG. 21 , the downwardly extending tip  408  is shown as substantially angled but can of course be flat or rounded, or comprise any other downwardly extending configuration as desired 
     Referring to  FIG. 22 , yet another alternative embodiment of the two-part molding system of the present invention is shown and described at  500 . The embodiment shown in  FIG. 22  generally comprises the same structural features as described in detail above, including a mounting portion  502 , a molding portion  504  and a projection or abutment  506  having a substantially downwardly extending tip  508  for defining a groove or recess  510 . In the embodiment of  FIG. 22 , projection or abutment  506  is a substantially outwardly extending projection or abutment comprising a substantially contoured or curved cross-sectional outer surface configuration, but of course it should be appreciated that the outer surface configuration can be any such configuration as desired including squared. As shown in  FIG. 22 , groove or recess  510  also comprises a substantially inwardly curved or rounded configuration. In this case, molding portion  504  comprises a top surface  512  having a substantially corresponding outwardly curved or rounded configuration, as depicted in  FIG. 21 . As depicted in  FIG. 22 , the downwardly extending tip  508  is shown as substantially angled, but can of course be flat or rounded, or comprise any other downwardly extending configuration as desired 
     Application Steps of the Present Invention 
     The installation steps of the present invention will now be described in a concise step by step discussion. As stated above, the installation of the two-part molding system according to the present invention is relatively simple and should be understood by those skilled in the art using conventional installation methods for conventional mounting portions, such as a wall base. In accordance with the present invention, the installation steps facilitate the cost- and time-effectiveness for the installation of the two-part molding system of the present invention, as well as to accommodate the use of a molding portion having uniform size throughout the desired installation regardless of the thickness of the particular flooring in place. In other words, by way of the present invention, molding portions of variable sizes in a single installation can be avoided as much as possible thereby reducing overall time and expense. The expense for replacement and/or repair is also reduced by way of the present invention having a uniform size molding portion. As explained in greater details below, the installation steps include (1) installation of the desired flooring, (2) installation of the desired mounting portion on top of the installed flooring, and (3) installation (insertion) of the desired molding portion. Of course, it should be appreciated that molding portions having variable sizes and/or heights are still envisioned and may be employed in accordance with the present invention. 
     Step 1—The desired flooring is installed, which can be any type of flooring including rubber flooring, vinyl flooring, wood, ceramic tiles, porcelain tiles, glazed tiles, and quarry tiles by conventional methods. 
     Step 2—The mounting portion is installed against the wall at the base of the wall by methods conventional in the art, such as by conventional adhesive agents. It should be understood that the mounting portion is installed after to the installation of the desired flooring, which can be any type of flooring including rubber flooring, vinyl flooring, ceramic tiles, porcelain tiles, glazed tiles, and quarry tiles. Of course, it should be appreciated that the mounting portion could be installed prior to the installation of the desired flooring. 
     Step 3—Once the mounting portion has sufficiently set, such as after about 1 day, the molding portion is set in place along the mounting portion, e.g., wall base. The molding portion can be manually installed by placing the top surface of the molding portion into and against the underside of the notch such that the top surface meets with the corresponding portion of the receiving end of the notch. The base of the molding portion is manually set in place against the bottom of the mounting portion. The downward compression created by the secure fit between the mounting portion and the molding portion in combination with the compression joining of the molding portion with the floor sufficiently keeps the molding portion in place and creates a seam-less or gap-less juncture between the molding system and the floor. 
     Optionally, any conventional adhesive, adhesive tape, glue, caulk, anti-microbial caulk, anti-bacterial caulk and the like as employed in the art is applied to the backside of the molding portion prior to installation against mounting portion to facilitate the fit between the molding portion and the mounting portion. 
     Optionally, a sealing agent, such as an anti-microbial caulk or anti-bacterial caulk, is set in the space between the molding portion and the mounting portion to further enhance the sanitary environment and to further strengthen the fit between the molding portion and the mounting portion. 
     The invention has been described with particular emphasis on the preferred embodiments. It should be appreciated that these embodiments are described for purposes of illustration only, and that numerous alterations and modifications may be practiced by those skilled in the art without departing from the spirit and scope of the invention. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention or the equivalents thereof.