BACKGROUND OF THE INVENTION1. Field of the Invention[0001]
The present invention relates to an improved garbage collection device. More specifically, it relates to the use of a layer of liquid absorbing material to collect and hold liquid leachate or other liquids which are discarded with or produced from garbage which is discarded into a garbage bag or garbage can.[0002]
2. Description of the Prior Art[0003]
Many forms of garbage cans and garbage bags are known in the art. Various forms of garbage compaction is also known. Most existing garbage bags are fabricated from plastic material of various thicknesses which are typically measured in mils. Various forms of handle ties, cinching strips or other devices to secure the top of the bags in a closed position are known. Typically, however, such bags are formed from a single layer of plastic which is intended to fully contain the contents of the bag. Such bags, in actual practice, however, are prone to becoming punctured or torn and thus allowing leachate and other liquids to drain from the bag either into the garbage can or onto the floor or ground or even onto the feet of the person who is taking out the garbage.[0004]
Garbage cans typically consist of a container with a bottom, four walls and optional top portions. Some bottom walls are closed and some bottom walls are provided with holes to allow drainage of liquids which may accumulate in the can. The cleaning and disposal of liquids collected in the bottom of the can is a difficult and disgusting task. The alternative of allowing such liquid to drain from the can onto the property of the owner is extremely unsanitary and should be avoided.[0005]
There remains a need for a garbage bag and a garbage can which addresses the issue of leachate or other liquid collection and which eliminates the above-described problems.[0006]
SUMMARY OF THE INVENTIONThe present invention meets these needs by providing, in essence, a “disposal diaper” type product for use in combination with a conventional garbage bag or garbage can or both. In its simplest form, the present invention includes a garbage collection device comprising at least one of a garbage bag and a garbage can, said garbage bag having a garbage bag bottom portion and garbage bag side wall portions and said garbage can having a garbage can bottom portion and garbage can side wall portions; and a disposable layer of liquid absorbing material juxtaposed adjacent to at least one of the garbage bag bottom portion and the garbage can bottom portion.[0007]
In a presently preferred embodiment, the garbage collection device has said disposable layer of liquid absorbing material removably placed inside of said garbage bag adjacent an inner surface of the bottom portion of said garbage bag.[0008]
In another embodiment, the garbage collection device has said disposable layer of liquid absorbing material removably adhered to an inner surface of the bottom portion of said garbage bag.[0009]
In yet another embodiment, the garbage collection device has said disposable layer of liquid absorbing material and is removably placed outside of said garbage bag adjacent an outer surface of the bottom portion of said garbage bag. In yet another embodiment, the garbage collection device has said disposable layer of liquid absorbing material and is removably adhered to an outer surface of the bottom portion of said garbage bag.[0010]
In yet another embodiment, the garbage collection device has said disposable layer of liquid absorbing material removably placed inside of said garbage can adjacent an inner surface of the bottom portion of said garbage can. In yet another embodiment, the garbage collection device has said disposable layer of liquid absorbing material removably adhered to an inner surface of the bottom portion of said garbage can. In yet another embodiment, the garbage collection device of said bottom portion of said garbage can is provided with drainage holes and said disposable layer of liquid absorbing material is removably placed outside of said garbage can adjacent an outer surface of the bottom portion of said garbage can. In yet another embodiment of the invention, said bottom portion of said garbage can is provided with drainage holes and said disposable layer of liquid absorbing material is removably adhered to an outer surface of the bottom portion of said garbage can.[0011]
In yet another embodiment of the invention, the garbage collection device has said disposable layer of liquid absorbing material provided adjacent at least one of garbage bag side wall portions and garbage can side wall portions.[0012]
In a presently preferred embodiment of the invention, said disposable layer of liquid absorbing material preferably further comprises an impervious lower layer and an upper layer of liquid absorbing material. Preferably, said impervious layer is formed of a plastic material.[0013]
The liquid absorbing layer of the present invention may be composed of any known liquid absorbing material. For example, but not intending to limit the scope of the present invention, said layer may include any one or more of the following:[0014]
fluff pulp fibers;[0015]
at least one superabsorbent polymer selected from the group consisting of starch; copolymers of starch with grafted acrylic acid; polyacrylates; a saponification product of a starch-acrylonitrile copolymer; and a cross linking of sodium carboxymethycellulose and an acrylic acid (or acrylate) polymer;[0016]
a sponge material; and[0017]
a cotton material.[0018]
The present invention may provide said disposable layer of liquid absorbing material with odor absorption properties. For example, said layer may include superabsorbent polymers of the p[0019]61yacrylic type and of certain boron derivatives including sodium tctraboratc pentahydrate.
Further, said garbage collection device may also provide said disposable layer of liquid absorbing material with an air scent material of any type which are well known in the art, such as Glade, for example.[0020]
FIGS. 1 through 5 show the presently contemplated embodiments of the present invention with the presently preferred embodiment shown as FIG. 1. As all of the drawings have the same reference numerals, all of the drawings will be referred to simultaneously. In each figure, a garbage can[0027]10 is shown which has abottom wall14 andside walls16. In FIGS. 1 through 3, agarbage bag20 is shown which has abottom portion24 andside wall portions26.Garbage bag20 is preferably made from plastic but may also be desirably made from paper or some other biodegradable material to reduce harm to landfills and the environment. In each embodiment of the invention, a liquid absorbingmaterial30 is shown which, in its presently preferred embodiment, includes anupper layer32 of a liquid absorbing material and alower layer34 of a liquid impervious material such as plastic. As can be shown from the various figures, the liquid absorbing material may be placed immediately above or below thebottom portion24 of thegarbage bag20 as shown in FIGS. 1 and 2. Optionally, the liquid absorbingmaterial30 may be adhered to the inner surface ofgarbage20 in FIG. 1 or to the lower surface of thegarbage bag20 in FIG. 2 by any suitable adhesive material such as rubber cement, glue or any other commercially available adhesive spray, liquid or tape product. Alternatively, theliquid absorbing material30 may be heat bonded to thegarbage bag20. Such adherence is utilized solely for the purpose of securing the liquid absorbing layer in place. FIG. 3 simply shows a liquid absorbing layer which extends up along the side walls of the garbage can10 andgarbage bag20.
As indicated in the Summary of the Invention, a variety of materials are contemplated for use as a liquid absorbing material. A variety of well known configurations for such absorbing materials are described in U.S. Pat. No. 3,860,003 entitled Contractible Side Portions for Disposable Diaper which issued to K. B. Buell on Jan. 14, 1975; U.S. Pat. No. RE. 26,151 entitled Disposable Diaper which issued to R. C. Duncan et al. on Jan. 31, 1967; U.S. Pat. No. 6,099,515 entitled Disposable Diaper issued to Tomoko Sugito on Aug. 8, 2000; and U.S. Pat. No. 6,342,653 issued to Gancet et al. on Jan. 29, 2002, each of which patents are incorporated herein by reference thereto.[0029]