US4111157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal litter container
Assignee: Animal Veterinary Products Inc
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Filing: 1977-01-24
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Granted: 1978-09-05
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Expires: 1997-01-24
Abstract
Abstract An enclosed litter container for animals, the container having upper and lower enclosure portions which are joined together to form an enclosed space. The upper enclosure portion includes an opening to provide access for an animal to the enclosed space. The upper portion also includes a depending flange which fits within a widened rim of the lower portion of the litter container to restrainingly couple the two portions together and to seal the joint between the portions to prevent escape of urine therefrom. The upper enclosure portion includes an outwardly bowed compressible resilient section which, when compressed, causes the depending flange to move out of restraining engagement with the widened rim of the lower portion to facilitate separation of the enclosure portions. The depending flange and the widened rim portion are configured so as to direct urine away from the region of the joint between the two enclosure portions and toward the bottom of the lower enclosure portion which contains the litter.
Inventors
- 👤 Donald Haugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:48
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0107
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
303 words
An animal litter container comprising: a. a first enclosure portion; b. a second enclosure portion, one of said enclosure portions being disposed vertically above the other, said enclosure portions each being defined by a wall, such wall including generally upright wall portions and other wall portions joining said generally upright wall portions; c. means in one of said side walls of one of said enclosure portions to provide access for an animal to said enclosed space, said first and second enclosure portions otherwise defining a completely enclosed space when joined together; d. means on said first enclosure portion for coupling said first and second enclosure portions together in a substantially horizontal joining plane, at least part of said coupling means restrainingly engaging said second enclosure portion; e. means on said first enclosure portion for effecting movement of said coupling means out of restraining engagement with said second enclosure portion of said container, said moving means including a compressible resilient section of said wall of said first enclosure portion, said compressible resilient section having an outwardly convex bowed configuration, said compressible resilient section including first means for gripping said section in a first, substantially horizontal gripping plane and second means for gripping said section in a second, substantially horizontal gripping plane, said gripping means being relatively movable by a manual squeezing action from a relaxed position wherein said first and second gripping means are vertically spaced from each other a given distance to a compressed position wherein said first and second gripping means are closer together and spaced from each other another distance which is less than said given distance, the movement of said first and second gripping means from said relaxed to said compressed positions effecting said movement of said coupling means out of restraining engagement, whereby said enclosure portions may be separated.
Claim 2
Dependent Claim
303 words
An animal litter container comprising: a. a first enclosure portion; b. a second enclosure portion, one of said enclosure portions being disposed vertically above the other, said enclosure portions each being defined by a wall, such wall including generally upright wall portions and other wall portions joining said generally upright wall portions; c. means in one of said side walls of one of said enclosure portions to provide access for an animal to said enclosed space, said first and second enclosure portions otherwise defining a completely enclosed space when joined together; d. means on said first enclosure portion for coupling said first and second enclosure portions together in a substantially horizontal joining plane, at least part of said coupling means restrainingly engaging said second enclosure portion; e. means on said first enclosure portion for effecting movement of said coupling means out of restraining engagement with said second enclosure portion of said container, said moving means including a compressible resilient section of said wall of said first enclosure portion, said compressible resilient section having an outwardly convex bowed configuration, said compressible resilient section including first means for gripping said section in a first, substantially horizontal gripping plane and second means for gripping said section in a second, substantially horizontal gripping plane, said gripping means being relatively movable by a manual squeezing action from a relaxed position wherein said first and second gripping means are vertically spaced from each other a given distance to a compressed position wherein said first and second gripping means are closer together and spaced from each other another distance which is less than said given distance, the movement of said first and second gripping means from said relaxed to said compressed positions effecting said movement of said coupling means out of restraining engagement, whereby said enclosure portions may be separated.
Claim 3
Dependent Claim
33 words
An animal litter container as defined in claim 1 wherein said outwardly bowed portion of said first enclosure portion extends about the entire periphery of said container to form a first peripheral bead.
Claim 4
Dependent Claim
52 words
An animal litter container as defined in claim 2 wherein said second portion of said enclosure includes a widened rim portion for engagement with said coupling means of said first enclosure portion, said widened rim portion extending about the entire periphery of said second enclosure portion to form a second peripheral bead.
Claim 5
Dependent Claim
48 words
An animal litter container as defined in claim 2 wherein said coupling means is a downwardly depending flange on said first enclosure portion, said downwardly depending flange being contiguous with said outwardly bowed portion, said downwardly depending flange extending about the entire periphery of said first enclosure portion.
Claim 6
Dependent Claim
35 words
An animal litter container as defined in claim 1 wherein said coupling means on said first enclosure portion is disposed inside said second enclosure portion when said first and second enclosure portions are coupled together.
Claim 7
Dependent Claim
37 words
An animal litter container as defined in claim 1 wherein said coupling means of said first enclosure portion sealingly engages said second enclosure portion to prevent escape of liquid from between said first and second enclosure portions.
Claim 8
Dependent Claim
58 words
An animal litter container as defined in claim 1 wherein: a. said first enclosure portion is said one enclosure portion disposed above said second enclosure portion; b. said access means includes an opening in said first enclosure portion; and c. said second enclosure portion includes a cavity for containing litter, said cavity being part of said enclosed space.
Claim 9
Dependent Claim
39 words
An animal litter container as defined in claim 7 wherein said second enclosure portion includes a main body portion and a widened rim portion, said widened rim portion being engageable with said coupling means of said first enclosure portion.
Claim 10
Dependent Claim
23 words
An animal litter container as defined in claim 8 wherein said widened rim portion includes an outwardly extending shoulder and an upstanding flange.
Claim 11
Dependent Claim
30 words
An animal litter container as defined in claim 8 wherein said widened rim portion includes means for directing liquid from the region of said widened rim portion toward said cavity.
Claim 12
Dependent Claim
32 words
An animal litter container as defined in claim 10 wherein said directing means includes a curved corner between said widened rim portion and said main body portion of said second enclosure portion.
Claim 13
Dependent Claim
39 words
An animal litter container as defined in claim 8 wherein each enclosure portion has one side open to the interior of said enclosed space, each open side being defined by a free edge extending entirely around each enclosure portion.
Claim 14
Dependent Claim
117 words
An animal litter container as defined in claim 12 wherein said widened rim portion includes one means for directing liquid from the region of said widened rim portion toward said cavity, said one directing means being a curved corner between said widened rim portion and said main body portion and wherein said first enclosure portion includes another means for directing liquid toward said cavity, said other directing means including a concave inwardly curved lip at said free edge of said first enclosure portion, said first and second directing means cooperating to both direct liquid away from the region where said first and second enclosure portions join each other and toward said cavity of said second enclosure portion.
Claim 15
Dependent Claim
20 words
An animal litter container as defined in claim 1 wherein each of said enclosure portions is of a one-piece construction.
Claim 16
Dependent Claim
20 words
An animal litter container as defined in claim 14 wherein each of said enclosure portions is constructed of molded plastic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |