Method of manufacturing a gate valve body
US4443920A · kind A · utility
7Cited by
7References
8Claims
0Family size
Inventor
Key dates
| Filing date | Sep 8, 1981 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Sep 8, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/03
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There are disclosed two embodiments of a gate valve having a forged body in which a generally rectangular cavity to receive the gate for opening and closing each flowway through the body is formed by drilling a first hole within the forging from which the body is to be made, and then drilling at least one other hole within the forging which is parallel to and overlaps a prior drilled hole therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.