Cat litter screening device
US4802442A · kind A · utility
Inventor
Key dates
| Filing date | Nov 9, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Nov 9, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K1/0114
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cat litter screening device which includes two planar bottom panels of a mesh material with foramen sized to pass the litter but which traps substantially all fecal matter. The bottom panels are pivoted together along a central axis and lift means are attached to the sides for moving the panels up and down through the litter. The lift means include handles and side panels which are also of a mesh material. In one embodiment the handles are rigid. In another embodiment lock means is provided by which the handles can be moved to a first position down and away from the sides of the litter box and to a second position where they are locked for applying force to move the bottom panels up and down through the litter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.