Non-metallic guard for sealing lips
US4426094A · kind A · utility
17Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1983 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Jan 20, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3232
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An oil seal assembly 10 of the type including a structural metallic outer casing 12 includes a resilient guard 30 for protection of a sealing element 18 bonded to the structural casing. In a preferred form the guard is formed of a resilient, non-metallic inert material, preferably polypropylene, and is supported axially within the outer casing by mechanical interference. Also in the preferred form the sealing element includes both particulate and fluid shaft contact lips 20,22.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.