Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 6854708 | High-vacuum valve with retractable valve plate to eliminate abrasion A valve achieves a high-vacuum seal and opens and closes with no sliding or otherwise abrading contact between the sealing plate and the valve seat, while maintaining pressure of the plate against the valve seat in the event of a failure in the valve actuation mecha... | 02/15/2005 |
| 5356113 | Isolation valve for single crystal pulling apparatus An isolation valve for a single crystal pulling apparatus providing a good sealing performance is disclosed. The apparatus comprises a casing having two opposite valve seats, a first valve seat having a first opening communicable with the main chamber of ... | 10/18/1994 |
| 4640302 | Double disc gate valve An improved double disc gate valve having sealing rings which engage the internal discs of the reciprocating gate and in which one of its discs and its sealing ring can be replaced with only partial disassembly of the valve.... | 02/03/1987 |
| 4427023 | Dry product valve Method and means for solidifying nuclear waste for permanent disposal are disclosed. A storage container, in the preferred form of a drum or barrel, is charged with a predetermined amount of liquid polymer resin in an uncatalyzed state. Catalyst-containin... | 01/24/1984 |
