Molded lip seal with polytetrafluoroethylene liner and method for making the same
US4239243A · kind A · utility
27Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1979 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Apr 4, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/924
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shaft seal (and method for making the same) of the type having an annular elastomeric body, a molded lip, and the molded lip having a liner of sintered polytetrafluoroethylene bonded thereto. The elastomer is molded simultaneously with the polytetrafluoroethylene liner being formed and bonded to the elastomer. The method for making the seal employs the same mold used to make common, molded lip elastomeric seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.