Throttling gasket insert for use with knife gate valve
US4798365A · kind A · utility
23Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1987 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | May 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7036
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A throttling gasket insert (34) for attaching a knife gate valve (10) into a pipe string is constructed of a single piece of resilient gasket material having a washer-shaped flange portion (36), to be clamped between a facing surface (52) of a knifegate-valve face plate (26) and a pipe flange (60), and a tubular portion (42), extending through a knife-gate valve flow passage (22) to a knife-gate blade (12) thereof, having a V-shaped passage therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.