Composite metallic type seal with spiral springs, and manufacturing process for this seal
US6098989A · kind A · utility
12Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jun 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/91
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention relates to a sealing O-ring of the composite metallic type with a metallic torus-shaped hollow central body (31), and at least one metallic sheet (32) surrounding this metallic body. The central body (31) is composed of a sequence forming a spiral spring with an overlap and laid out along the circumferences of meridian circles of the torus, forming a spiral spring being side by side but not touching each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.