Vent valve
US6516829B1 · kind B1 · utility
16Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vent valve for an air braking system of a vehicle comprises an elastomeric valve member (11) held in relation to a vent (17) and having a restricted vent passageway. A continuous depending rib (23) is engageable with a valve seat (28) to close the vent passageway as increasing pressure acts on the head (21) of the valve member (11). The valve member (11) permits a fluid chamber to be connected to exhaust until pressure in the chamber reaches a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.