Gas-lubricated seal for sealing between a piston and a cylinder wall
US4540185A · kind A · utility
3Cited by
5References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jun 13, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Jun 13, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/46
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston-cylinder seal uses gas for a lubricant and has a runner supported on a gapless structure and placed in the space between the piston and the cylinder wall. The runner is deformed elastically under the influence of the operating pressures to follow and compensate for variations in the piston-cylinder fit and maintain a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.