Thrust washer and combination seal and thrust washer method and apparatus
US4268040A · kind A · utility
11Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Feb 12, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/946
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A thrust washer having a backing layer of resilient material such as rubber or other elastomers and having, for example, a polytetrafluoroethylene bearing surface, which can include one or more integral sealing lips formed from the polytetrafluoroethylene bearing material. Another aspect of this invention is a unitary article including said resiliently-backed thrust washer in combination with a seal. This unitary article can be purchased and installed as a unit taking the place of four separate prior art elements that had to be purchased and installed separately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.