Shutoff valve assembly
US4934655A · kind A · utility
120Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Mar 13, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/42
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shutoff valve (26) including a plunger (28) slidably mounted in a housing (30). The plunger (28) being slidable between an open and a closed position. The plunger (28) having a front end and a back end and defining a path flow of fluid therethrough. A back end (32) of the plunger (28) having inclined surfaces (50). Projections (34) extend from the back end (32) of the housing (30) and cooperate with the inclined surfaces (50) to bias the plunger (20) into the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.