Hydraulic actuator for a brake
US4582180A · kind A · utility
3Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1982 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Nov 8, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The actuator comprises a piston (34) which has a stepped portion (36) formed with an annular groove (38) at its end projecting out of a cylinder (16). An annular protective sheet (50) is slipped on the stepped portion (36) and it comprises at its radially inner edge (52) inwardly projecting, resilient tongues (54) which are arrested in the annular groove (38). An annular elastic sleeve (46) is arranged behind the protective sheet (50), thereby being protected against heat, and provides sealing as against the piston (34), on the one hand, and the cylinder (16), on the other hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.