Valve device and manually operated shutoff valve device
US8474792B2 · kind B2 · utility
16Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Aug 22, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K25/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a valve device for selectively opening and closing a flow passage formed to open on a valve seat by a valve body through a resin-made seat, a hollow portion is formed on either one of the valve body and the valve seat and receives the resin-made seat therein, the resin-made seat has a thickness so that the resin-made seat partly protrudes from the hollow portion, and when the valve body is operated to close the flow passage, the resin-made seat is compressed to bring an end surface of the valve body into contact with the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.