Seat block and valve device
US8752807B2 · kind B2 · utility
3Cited by
15References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/1226
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seat block capable of maintaining a well-fitted state of a seat portion in a simple and reliable manner regardless of use conditions. A seat portion base body (43) is provided in a housing (67) provided with a valve passage (66) and allows a piston (28) for opening and closing a valve passage (66) to be pressed on the seat portion base body (43). A spring member (23) applies an elastic force to the seat portion base body (43) such that the elastic mechanism (23) cooperates with the housing (67) to retain the seat portion base body (43).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.