Annular seal
US4067407A · kind A · utility
19Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Jun 8, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/944
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An annular seal of resilient material is disclosed and having an axially directed groove containing a spring between two interconnected body portions. At least one of said body portions has a sealing lip projecting in a radial direction generally opposite the location of said spring. Said groove has portions spaced from the bottom and in embracing contact with opposite surfaces of said spring. Said groove bottom being a portion of an ellipse and having embracing contact with a juxtaposed portion of said spring only when the sealing lip is under a compressive load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.