Piston sealing and dampening device
US5193433A · kind A · utility
23Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Nov 1, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/223
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Piston sealing and dampening device in a pressurized-fluid cylinder, where a piston (3) has a central recess (3a) facing towards a cylinder end cap (1a) and disposed such that when the piston is in the vicinity of its end position, said recess accommodates a sleeve portion (5) provided with an internal pressurized-fluid connection (6) and projecting from the cylinder end cap. An integrated sealing ring (10) seals against the outside of the sleeve portion (5) with an inner sealing ring lip (10e) and against the inside of the cylinder tube (2) with an outer sealing ring lip (10c).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.