Half-keystone compression ring
US4421328A · kind A · utility
6Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J9/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved half-keystone compression ring for use in an internal combustion engine. The improved ring's bottom side is essentially flat, radially and circumferentially, in the closed operating position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.