Dual-lip shaft seal with one spring-urged lip
US4613143A · kind A · utility
37Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1985 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Dec 2, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dual-lip shaft seal with two PTFE sealing members bonded to a molded elastomeric body, and a method and mold for its manufacture includes an elastomeric body bonded to the radial flange of a metal case and provides (1) a shaped lip with a garter spring held in a recess and, bonded to its other side, a frustoconical PTFE ring providing its sealing lip portion and (2) an inflexible portion bonded to a radially extending PTFE wafer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.