Valve
US4562994A · kind A · utility
11Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1985 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Mar 18, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/188
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Three-piece stop valves, in both angle and straight-through forms, are disclosed comprising a valve body, resilient control sleeve and handle, with no separate fasteners or sealing elements being required. The handle and control sleeve are retained within the valve body by resilient formations on the handle which snap into a retaining groove on the valve body. Inlet line pressure resiliently biases the side walls of the control sleeve into sealing engagement with the valve bore to prevent leakage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.