Butterfly valve
US4047696A · kind A · utility
6Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Mar 17, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49412
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A butterfly valve comprising a body having a cylindrical passage and a diametral pivot pin and a butterfly valve plate fixed to the pivot pin. The plate is formed with a planar central portion at which the pin is connected to the plate. In assembly, the pin is first placed in position and then the valve plate is adjusted angularly and radially until the periphery of the plate is in sealing relation to the inner surface of the passage. The plate is then fastened to the pin by welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.