Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 4979540 | Cartridge-type direct loaded safety and pressure-relief valve having flow path for preventing supersonic flow and minimizing valve hysteresis A safety and pressure relief valve has a seat at the end of a nozzle, a disk which is axially movable from a closed seat-engaging position to an open position, and a sleeve which is telescopically slidable relative to the disk to define variable orifices ... | 12/25/1990 |
| 4708164 | Safety relief valve An improved safety relief valve that includes an adjusting ring located on the valve seat member. The adjusting ring has one end located to provide an orifice which will control the area governing the rate of closure or "blow down" of the valve and a much... | 11/24/1987 |
| 4226261 | Relief valve A pressure relief valve (10) including a valve stem (34) having an elastomeric valve element (36) received in a counterbore (38) formed in one end thereof and engageable with a valve seat (32) formed in the body (12) of the valve. An annular channel (58) ... | 10/07/1980 |
