Abstract:
An improved garbage can defining apertures around an open end and a closed end of a receptacle in order to maintain equilibrium of air pressure within the receptacle so as to avoid the suction-cup effect when inserting and removing a garbage bag from the receptacle.

Description:
FIELD OF THE INVENTION 
     This invention relates generally to garbage cans and, more specifically, to an improved garbage can defining apertures around an open end and a closed end in order to maintain equilibrium of air pressure to avoid the suction-cup effect when inserting and removing a garbage bag from a garbage can. 
     BACKGROUND OF THE INVENTION 
     It in often difficult to place a garbage bag into—or remove a garbage bag from—a tight-fitting garbage can. When placing a garbage bag into a garbage can, the volume of the garbage bag must displace the volume of air already existing in the garbage can. In order for the air to be displaced it must find a way to exit the garbage can. This is often a problem, however, because most garbage cans only contain one open end which is blocked by the entering garbage bag. The result is that the garbage bag can only be inserted with great difficulty and only after the air trapped inside the garbage can is able to escape around the entering garbage bag. Removing a garbage bag can also be difficult, but for the opposite reason. When removing a garbage bag, the volume or the garbage bag being removed from the garbage can must be replaced by an equal volume of air. It is often the case, however, that when removing a garbage bag there is no easy way for air to enter the garbage can. The result is that the bag can only be removed with tremendous exertion and only after air from outside or the garbage can is able to enter the garbage can around the exiting garbage bag. This phenomenon, in which tremendous exertion is needed until the flow of air creates equilibrium is known as the “suction-cup effect.” 
     One solution to this problem is to simply use a smaller garbage bag or a larger garbage can, leaving plenty of room for air to enter and exit the garbage can and thus avoiding any suction-cup effect. This solution is inefficient, however, since it does not maximize the capacity of a garbage can. Similarly, in crowded areas such a solution is impractical due to the need to dispose of the maximum amount of garbage in the smallest amount of space. 
     A need therefore existed for an improved garbage can defining apertures in a bottom and upper portion thereof in order to allow air to enter and exit the garbage can when a garbage bag is removed and inserted, respectively, thus allowing a person to insert and remove a garbage bag into and from, a garbage can without difficulty. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a garbage can destining a plurality of apertures in a lower portion and an upper portion thereof so as to allow a garbage bag to be inserted end removed without the difficulties associated with the suction-cup effect. 
     BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In accordance with one embodiment of the present invention, an improved garbage can is disclosed, comprising a receptacle having an open end and a closed end and dimensioned to receive a garbage bag through the open end, wherein the receptacle defines a plurality of apertures proximate the open end dimensioned to expel air out of the receptacle when the garbage bag is inserted into the receptacle while at the same time the apertures of the open end are dimensioned to draw air into the receptacle when the garbage bag is removed from the receptacle, wherein the receptacle defines a plurality of apertures proximate the closed end dimensioned to expel air out of the receptacle when the garbage bag is inserted into the receptacle while at the same time the apertures of the closed end are dimensioned to draw air into the receptacle when the garbage bag is removed from the receptacle. 
     In accordance with another embodiment of the present invention, a method for inserting a garbage bag into a receptacle is disclosed, comprising, in combination, the steps of providing a receptacle having an open end and a closed end and dimensioned to receive a garbage bag through the open end, wherein the receptacle defines a plurality of apertures proximate the open and dimensioned to expel air out of the receptacle when the garbage bag is inserted into the receptacle while at the same time the apertures of the open end are dimensioned to draw air into the receptacle when the garbage bag is removed from the receptacle, wherein the receptacle defines a plurality of apertures proximate the closed end dimensioned to expel air out of the receptacle when the garbage bag is inserted into the receptacle while at the same time the apertures of the closed end are dimensioned to draw air into the receptacle when the garbage bag is removed from the receptacle, providing a garbage bag, and inserting the garbage bag into the receptacle. 
     In accordance with yet another embodiment of the present invention, a method for removing a garbage bag from a receptacle is disclosed, comprising, in combination, the steps of providing a receptacle having an open end and a closed end and dimensioned to receive a garbage bag through the open end, wherein the receptacle defines a plurality of apertures proximate the open end dimensioned to expel air out of the receptacle when the garbage bag is inserted into the receptacle while at the same time the apertures of the open end are dimensioned to draw air into the receptacle when the garbage bag is removed from the receptacle, wherein the receptacle defines a plurality of apertures proximate the closed end dimensioned to expel air out of the receptacle when the garbage bag is inserted into the receptacle while at the same time the apertures of the closed end are dimensioned to draw air into the receptacle when the garbage bag is removed from the receptacle, providing a garbage bag filled with garbage, wherein the filled garbage bag has an outer diameter substantially the same as an inner diameter of the receptacle, and removing the garbage bag from the receptacle. 
    
    
     The foregoing and other objects, features, and advantages of the invention will be apparent from the following, more particular description of the preferred embodiments of the invention, as illustrated in the accompanying drawings. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of the receptacle of the preferred embodiment of the improved garbage can of the present invention. 
     FIG. 2 is a side, cross-sectional view of the improved garbage can of FIG. 1, showing a garbage bag being inserted into the receptacle. 
     FIG. 3 is a side, cross-sectional view of the improved garbage can of FIG. 1, showing a garbage bag being removed from the receptacle. 
     FIG. 4 is a partial, cross-sectional view of the improved garbage can or FIG. 1, showing both the open end and the closed end of tho receptacle and the apertures defined by both the open end and the closed end. 
     FIG. 5 is a top view of the improved garbage can of FIG. 1, showing the apertures defined by both the open and and the closed end of the receptacle, taken along line  5 — 5 . 
     FIG. 6 is a side view of the improved garbage can of FIG. 1, showing an upper portion of the garbage bag coupled to: the first handle, the second handle, the first protrusion member, and the second protrusion member. 
     FIG. 7 in a side view of an upper portion of the receptacle of the improved garbage can of FIG. 1, showing how the garbage bag is coupled to the first handle. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to FIGS. 1-7 reference number  10  refers generally to the preferred embodiment of the improved garbage can of the present invention. The improved garbage can  10  comprises a receptacle  12  having an open end  14  and a closed end  16  and is dimensioned to receive a garbage bag  18  through the open end  14 . The open end  14  of the receptacle  12  defines a plurality of apertures  20  dimensioned to expel air out of the receptacle  12  when the garbage bag  18  is inserted into the receptacle  12  while at the same time the apertures  20  of the open end  14  are dimensioned to draw air into the receptacle  12  when the garbage bag  19  is removed from the receptacle  12 . The closed end  16  of the receptacle  12  also defines a plurality of apertures  20  dimensioned to expel air out of the receptacle  12  when the garbage bag  18  is inserted into the receptacle  12  while at the same time the apertures  20  of the closed end  16  are dimensioned to draw air into the receptacle  12  when the garbage bag  18  is removed from the receptacle  12 . In the preferred embodiment, the open end  14  of the receptacle  12  defines ten apertures  20  evenly spaced around the open end  14  and the closed end  16  defines four apertures  20  evenly spaced around the closed end  16 , although it should be clearly understood that substantial benefit could be derived from an alternative configuration of the improved garbage can  10  in which the number of apertures  20  in the open end  14  and/or the closed end  16  deviates, even substantially, from the preferred number of apertures  20  in either direction. 
     Referring now to FIGS. 1,  5 ,  6  and  7 , the improved garbage can  10  preferably comprises a first handle  22  coupled to a first side of the open end  14  of the receptacle  12  and a second handle  24  coupled to a second side of the open end  14  of the receptacle  12 . Together, the first handle  22  and the second handle  24  are used to aid in carrying the receptacle  12 . In the preferred embodiment, the improved garbage can  10  further comprises a first protrusion member  26  coupled to a third side of the open end  14  of the receptacle  12  and dimensioned to penetrate through a garbage bag  18 . The improved garbage can  10  preferably also comprises a second protrusion member  28  coupled to a fourth aide of the open end  14  of the receptacle  12  and dimensioned to penetrate through a garbage bag  13 . Together, the first protrusion member  26  and the second protrusion member  28  are able to secure the open end of the garbage bag  18  to the open end  14  of the receptacle  12 . This is useful when one desires to place an empty garbage bag  18  into the receptacle  12  and then subsequently fill it with refuse (not shown). 
     Referring now to FIG. 1, the improved garbage can  10  preferably comprises a lid  30  dimensioned to be coupled to the open end  14  of the receptacle  12 , although it should be clearly understood that substantial benefit could be derived from an alternative configuration of the improved garbage can  10  which lacks a lid  30 . 
     In the preferred embodiment, the open end  14  of the receptacle  12  is comprised of a rim  32  having a diameter greater than the closed end  16  of the receptacle  12 . A lower portion of the rim  32  preferably defines the plurality of apertures  20  proximate the open end  14 . 
     While the invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing and other changes in form and details may be made therein without departing from the spirit and scope of the invention.