Wheel cylinder assembly and seal arrangement therein
US4544049A · kind A · utility
10Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1983 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Oct 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/91
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drum brake assembly having a wheel cylinder mounted on arms of a center guide backing plate by means of notches receiving the arms. The cylinder has pistons with low drag O-ring seals in grooves configured to provide seal forces which are aided by brake actuating pressure to assure sealing action. Wiper seals within the wheel cylinder are used in place of boots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.