Butterfly valve assembly and method of making same
US4542763A · kind A · utility
5Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1983 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Nov 4, 2003 |
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 an improved 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 an improved butterfly valve and method of making same are provided wherein such butterfly valve has improved heat exchange means disposed in the outer periphery of its valve body structure for controlling the temperature thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.