Sealing ring
US4223896A · kind A · utility
19Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1979 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Mar 13, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing ring to be received by an annular groove in one of two pipe elements which can be inserted one into the other, to seal between the pipe elements. The sealing ring comprises two integrated portions of different hardnesses, forming two surfaces enclosing an obtuse angle one of said surfaces being formed by the harder portion and the other one by the softer portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.