Patent US3685127A successfully refreshed from Google Patents.
US3685127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making oil seals
Assignee: CHARLES WESTON AND CO Ltd
•
Filing: 1969-12-09
•
Granted: 1972-08-22
•
Expires: 1989-12-09
Abstract
Abstract A fluid seal having an annular metal case supporting a flexible sealing ring with a peripheral sealing edge radially to one side of an axial web of the case. The other side of the web may be formed with a groove filled with the resilient material of the sealing ring. A radial web of the case is also provided at one edge of the axial web. The metal case is made by a roll forming process.
Inventors
- 👤 Charles William Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:07
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248; F16J15/3252; Y; Y10; Y10S; Y10S277/00; Y10S277/924; Y10S29/00; Y10S29/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49702; Y10T29/4998; Y10T29/49993
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
A method of manufacturing a fluid seal having a metal case and a ring of resilient material secured to the case, including the steps of roll forming a strip of metal to provide an annular metal case for the seal, positively locating the annular metal case in a die, and molding a resilient like material to a portion of one of the inner and outer circumferential surfaces of the metal case.
Claim 2
Independent Claim
71 words
A method of manufacturing a fluid seal having a metal case and a ring of resilient material secured to the case, including the steps of roll forming a strip of metal to provide an annular metal case for the seal, positively locating the annular metal case in a die, and molding a resilient like material to a portion of one of the inner and outer circumferential surfaces of the metal case.
Claim 3
Dependent Claim
28 words
The method of manufacturing a fluid seal as claimed in claim 1, including welding the ends of the rolled metal strip together to constitute a continuous metal ring.
Claim 4
Dependent Claim
30 words
The method of manufacturing a fluid seal as claimed in claim 1, comprising providing an axial split in the metal case, and filling the axial split with a resilient material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |