Liveload assembly for valve
US6622987B2 · kind B2 · utility
12Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Mar 1, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K41/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve stem sealed by a packing. A spigot applies an axial compression loading to the packing via a sleeve when bolts are tightened. A clamp attaches two parts of the valve body to each other with the bolts extending between the spigot and the clamp. The bolt and spigot provide an integral spring construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.