Patent US3086781A successfully refreshed from Google Patents.
US3086781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil seal assemblies
Assignee: Chicago Rawhide Manufacturing Co Inc
•
Filing: 1960-02-29
•
Granted: 1963-04-23
•
Expires: 1980-02-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Hudson
- 👤 Robert S Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:34
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248; F16J15/3252; F16J15/3256; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7803; F16C33/7813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
AN OIL SEAL ASSEMBLY FOR MOUNTING BETWEEN A PAIR OF RELATIVELY MOVABLE PARTS, SAID ASSEMBLY INCLUDING A GENERALLY U-SHAPED CASING COMPRISING AN AXIALLY DIRECTED BASE AND A PAIR OF RADIAL WALLS RECEIVING THEREBETWEEN A SEALING MEMBER HAVING A BLOCK-LIKE PORTION PROVIDED WITH A GENERALLY FLAT SEALING SURFACE EXTENDING OUT OF SAID CASING FOR SEALING AND FIXED ENGAGEMENT WITH ONE OF SAID PARTS, A WEB PORTION INTEGRALLY FORMED WITH SAID BLOCKLIKE PORTION AND EXTENDING THEREFROM WITHIN SAID CASING IN A DIRECTION AWAY FROM SAID SEALING SURFACE, AND A FLEXIBLE SEALING LIP FORMED INTEGRAL WITH SAID WEB PORTION AND ANGLED RELATIVE THERETO, THE FREE END PORTION OF SAID FLEXIBLE SEALING LIP BEING IN RUNNING SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE BASE OF SAID CASING, THE BASE OF SAID FLEXIBLE SEALING LIP ADJACENT ITS JUNCTURE WITH SAID WEB PORTION BEING FORMED WITH AN INTEGRAL DIRT EXCLUDER LIP SEAL IN RUNNING SEALING ENGAGEMENT WITH SAID INNER SURFACE ADJACENT ONE OF SAID RADIAL WALLS, SAID CASING HAVING A PLURALITY OF APERTURES THEREIN IMMEDIATELY ADJACENT SAID DIRT EXCLUDER LIP SEAL PROVIDING MEANS FOR FLUSHING SAID CASING AND SAID DIRT EXCLUDER LIP SEAL IMMEDIATELY INWARDLY OF SAID ONE RADIAL WALL, SAID EXCLUDER LIP SEAL BEING LOCATED INTERMEDIATE SAID FLEXIBLE SEALING LIP AND SAID APERTURES.
Claim 2
Dependent Claim
209 words
AN OIL SEAL ASSEMBLY FOR MOUNTING BETWEEN A PAIR OF RELATIVELY MOVABLE PARTS, SAID ASSEMBLY INCLUDING A GENERALLY U-SHAPED CASING COMPRISING AN AXIALLY DIRECTED BASE AND A PAIR OF RADIAL WALLS RECEIVING THEREBETWEEN A SEALING MEMBER HAVING A BLOCK-LIKE PORTION PROVIDED WITH A GENERALLY FLAT SEALING SURFACE EXTENDING OUT OF SAID CASING FOR SEALING AND FIXED ENGAGEMENT WITH ONE OF SAID PARTS, A WEB PORTION INTEGRALLY FORMED WITH SAID BLOCKLIKE PORTION AND EXTENDING THEREFROM WITHIN SAID CASING IN A DIRECTION AWAY FROM SAID SEALING SURFACE, AND A FLEXIBLE SEALING LIP FORMED INTEGRAL WITH SAID WEB PORTION AND ANGLED RELATIVE THERETO, THE FREE END PORTION OF SAID FLEXIBLE SEALING LIP BEING IN RUNNING SEALING ENGAGEMENT WITH THE INNER SURFACE OF THE BASE OF SAID CASING, THE BASE OF SAID FLEXIBLE SEALING LIP ADJACENT ITS JUNCTURE WITH SAID WEB PORTION BEING FORMED WITH AN INTEGRAL DIRT EXCLUDER LIP SEAL IN RUNNING SEALING ENGAGEMENT WITH SAID INNER SURFACE ADJACENT ONE OF SAID RADIAL WALLS, SAID CASING HAVING A PLURALITY OF APERTURES THEREIN IMMEDIATELY ADJACENT SAID DIRT EXCLUDER LIP SEAL PROVIDING MEANS FOR FLUSHING SAID CASING AND SAID DIRT EXCLUDER LIP SEAL IMMEDIATELY INWARDLY OF SAID ONE RADIAL WALL, SAID EXCLUDER LIP SEAL BEING LOCATED INTERMEDIATE SAID FLEXIBLE SEALING LIP AND SAID APERTURES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |