Foamed plastic lubricating seal
US4165085A · kind A · utility
12Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1977 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Sep 12, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K9/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A seal for a gap between at least two surfaces comprising a unitary body member made of a foam plastic material including at least one homogeneous peripheral surface portion and at least one internal porous portion. The porous portion is filled with a lubricant and is exposed through at least one section in the homogeneous peripheral surface portion to permit transfer of lubricant therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.