Butterfly valve assembly and method of making same
US4688594A · kind A · utility
7Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1985 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Sep 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6579
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A butterfly valve assembly and method of making the same are provided wherein such valve assembly has a valve body structure and a closure structure and is provided with a new device for locking, in its closed position, a shaft assembly which is used to operate the closure structure. In accordance with another feature of the invention a new butterfly valve and method of making same are provided wherein such butterfly valve has new heat exchange devices comprising same for controlling the temperature thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.