Liner and liner system for litter box and litter box cover

Details Liner and liner system for litter box and litter box cover Liner and liner system for litter box and litter box cover

2000-04-14

2001-05-01

Jordon, Charles T. (Department: 3644)

Animal husbandry

Waste toilet or related device

Walled receptacle; e.g., litter box, etc., containing...

C119S165000

Reexamination Certificate

active

06223688

ABSTRACT:

FIELD OF INVENTION
The present invention relates to litter boxes for collecting pet feces and urine and to liners for such litter boxes.
BACKROUND OF INVENTION
Litter boxes formed of a cover and a bottom are commonly used to collect feces and urine of pets or other animals such as cats. For reducing bacteria or odor buildup, various liners have been provided for covering a bottom of the litter box. U.S. Pat. No. 5,850,798, issued to the present inventor and describing one such liner for a litter box bottom, achieves reduction in bacteria or odor buildup. However, even further improvements in reducing bacteria or odor buildup would be desirable.
SUMMARY OF THE INVENTION
In a preferred form, the invention provides a liner for a litter box cover designed to rest on a litter box bottom. The liner comprises a sidewall for lining a substantial portion of a sidewall of the cover otherwise exposed to pet urine during normal operation. The sidewall comprises a fluid impermeable layer and an aperture for access by a pet. The liner further comprises at least one fastener for being held in position relative to the cover. The liner may include a top attached to the liner sidewall around a substantial portion of a lateral periphery of the top. In addition to the fluid impermeable layer, the liner sidewall preferably includes a sorbent layer for absorbing pet urine and preferably a claw-resistant layer for protecting the sorbent layer. The top of the liner comprises a fluid impermeable layer.
Using the foregoing liner for a litter box cover together with a liner for a litter box bottom achieves significant reduction in bacteria or odor buildup in a litter box. Additionally, use of such liners for the cover and bottom typically eliminates the need for routine cleaning of the litter box itself. Thus, while the liners will need to be periodically changed, the litter box typically remains clean and odor-free for months.


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