Receptacles – Receptacle having flexible – removable inner liner – Removable bag liner
Reexamination Certificate
1999-08-09
2001-03-13
Pollard, Steven (Department: 3727)
Receptacles
Receptacle having flexible, removable inner liner
Removable bag liner
C220S495040, C220S908000
Reexamination Certificate
active
06199714
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT.
“Not applicable”
REFERENCE TO A MICROFICHE APPENDIX
“Not applicable”
BACKGROUND FIELD OF THE INVENTION
This invention relates to receptacles, specifically to improve receptacles lining features of a receptacle and swept debris pick up means of a receptacle.
BACKGROUND-DISCUSSION OF PRIOR ART
Originally traditional waste receptacles where only capable of receiving waste manually placed into an open upper end of receptacle. Because of this a person sweeps debris into a pile then they have to retrieve the dustpan, bend over to gather the pile of debris onto dustpan. Then the person takes the dustpan to receptacle and empties the debris into receptacle. Often the person has to bang the dustpan on inside of receptacle to knock off any loose debris before returning the dustpan to storage.
This problem has been partially addressed by a waste receptacle with a sweeping ramp having protruding teeth in U.S. Pat. No. 5,924,162 to Kalscheur, Jul. 20, 1999. In which debris are manually swept into receptacle by the use of a sweeping ramp. The swept in debris are removed from tipping the waste receptacle causing a fold away top flap of a chute passage to open and pore out the swept material.
This patent to Kalscheur dose provide a way to receive and store swept material into receptacle. However, the sweep material storage in this receptacle is not lined and would require cleaning often.
Along with the need for an improved method for waste receptacles to receive swept debris are several needed improvements in receptacle design. One needed improvement of waste receptacles is an inexpensive method of neatly securing the bulky excess top portion of a liner that hangs over the top of receptacle. For neatness as well as to secure the liner in place when the receptacle user desires to turn the receptacle upside down to empty the contents of the lined receptacle into a dumpster or another separate liner for the purpose of reusing the liner already in receptacle.
U.S. Pat. No. 5,632,401 to Hurd, May 27, 1997 partially addresses this need by the use of a bag holding flange. Although the flange dose hold a portion of the liner secure at the very top of the open end of receptacle. It dose not neatly secure the bulky excess top portion of the liner that still hangs over top of receptacle. Also this receptacle can not conveniently be overturned to empty the contents of a liner within receptacle. Upon overturning this receptacle a supply of liners stored within the inner base of this receptacle would be released from a pair of spring hinged doors that are unsecured.
Another needed improvement of receptacles is simple inexpensive and versatile method of storing a continues supply of liners with receptacle. There have been several attempts to solve this need as demonstrated in U.S. Pat. Nos.; #3,481,112 to Bourgeois, Dec. 2, 1969 -# 3,451,453 to Heck, Jun. 24, 1969 -# 3,760,975 to Nilsson, Sep. 25, 1973 - #4,364,490 to Lang, Dec. 21, 1982 -#4,955,505 to Battaglia, Sep. 11, 1990 -#5,031,793 to Chen, Jul. 16, 1991 -#5,115,935 to Lemongelli, May 26, 1992 -#5,322,180 to Ker, Jun. 21, 1994 -#5,372,272 to Jennings, Dec. 13, 1994 -#5,458,259 to Falk, Oct. 17, 1995 -#5,405,041 to Van Brackle, Apr. 11, 1995 -#5,503,292 to Cuccharia, Apr. 2, 1996 -#5,628,424 to Gola, May 13, 1997
As this need for a liner dispenser has been well defined over the past 30 years many approaches to solve this need have been taught in the prior art. Tow the teachings of the prior art are great conceptually, it is apparent that the purpose of the patent law to make ideas public for the benefit of mankind has not been fully implemented for the following reasons:
The prior art efforts are commercially impractical because of complex designs requiring expensive specialty production and manufacturing. The excessive tooling, engineering, assembly of parts, and molding processes for adapting a receptacle to receive a dispenser produces an expensive receptacle.
Then in addition to the expense involved in producing a receptacle adapted to house and receive other parts are required. The dispenser portion must also be specially molded or manufactured similar to the way the adaptable receptacle was produced. After the dispenser has been produced to be housed in receptacle its use is limited.
After these receptacle and dispenser portion are produced then assembly is required. Several of the prior art references call for the installation of attachment parts such as: levers, hinges, rivets, screw, lugs, bolts, levers and like attachments. This labored assembly also inflates the price of production.
Until the dispensing concept is commercially practical and defeats expensive production cost mankind at large will not benefit from this convenient concept. Aside from the commercial impracticability other significant problems exist steaming from the functional limitations of the prior art some of these limitation are: U.S. Pat. Nos.; #5,738,239 to Triglia, Apr. 14, 1998 -#5,632,401 to Hurd, May 27, 1997 -#5,372,272 to Jennings, Dec. 13, 1994 show dispensers that set unattached or have unlocked top portions. They will not conveniently allow receptacle user to perform a function that is expected with receptacles. It has been overlooked that it is a very common practice when emptying waste from a lined receptacle to turn receptacle upside-down. To empty contents into a separate bag for the purpose of saving on liners. In result the stored liners and in some cases entire dispenser fall out. It is impractical to provide a receptacle that can not be conveniently over turned.
Most all of the prior art references have failed to provide convenient storage for the trash ties that accompany trash liners when purchased. The ties are provided within the packaging of trash liners as a means to secure top of full bag simply without having to manually tie a knot in top. The main purposes of dispensers are to provide convenient storage of liners and save steps by not having to retrieve liners from a separate location. It only makes sense to utilize the same convenience when retrieving trash ties.
Other functional limitations of prior art showing receptacle-dispensing combinations are In the event of a vital part failure within the combination. Placing of replacement parts in most cases can not be preformed.
U.S. Pat. Nos.; # 4,319,694 to Nehrbass, Mar. 16, 1994 and # 5,678,723 to Swift, Oct. 21, 1997 show dispensers that take up and waste space at the bottom of receptacle promoting the use of more liners.
The prior art fails to provide a means to hold liner at top of receptacle after a full liner is removed. The liner that is pulled to top of receptacle by the attached full liner is torn away and laid over the top of receptacle while the full liner is being tied. The empty liner because of its slick surface often slips back down into the receptacle. Then one must bend over and retrieve empty liner.
Another limitation of dispensers that are restricted to the base of receptacle is that industries such as restaurants have a lot of liquid waste and liners are frequently punctured by straws etc. A base dispenser is not as practical for use in situations where large amounts of liquid waste constantly leak down into the opening of dispenser.
An inconvenience occurs when a clean liner is desired for use outside of receptacle and the clean liners are in the base of receptacle attached to a bag of trash. Then you must remove bagged trash, tear liner top and bottom, throw out or replace into receptacle the un-full bag of trash. This temporarily breaks the sequence of liners causing the user to bend to retrieve the next liner.
There are also known in the prior art disposable liner dispensers and dispensers made of non-sturdy material. Shown in U.S. Pat. Nos. #Des. 297,415 to Gavin, Aug. 30, 1988 -#4,850,486 to Neibaur, Jul. 25, 1989 -#5,183,157 to Darden, Feb. 2, 1993 -#5,353,950 to Taylor, Oct. 11, 1994 -#5,671,847 to Pedersen, Sep.
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