Contaminant excluding hubcap vent plug
US5860708A · kind A · utility
39Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B7/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hubcap vent plug is disclosed which includes a plug body having inlet vent structure for accommodating air flow into a bearing chamber during wheel end pressurization, outlet vent structure for accommodating gaseous flow out of the bearing chamber during wheel end depressurization, a first one-way check valve operatively associated with the inlet vent structure, a second one-way check valve operatively associated with the outlet vent structure, and an annular seal member mounted on the plug body for sealingly engaging the periphery of a reception port formed the end wall of the hubcap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.