Process for producing metal rings
US4037455A · kind A · utility
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1References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1976 |
| Grant date | Jul 26, 1977 |
| Priority date | — |
| Expiry date | Jun 22, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D53/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Two metal rings are produced having a concave C-shaped cross section, open in an axial direction. In particular, annular sealing members are formed by deep-drawing a strip, the outside diameter of one ring being slightly smaller than the inside diameter of the other ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.