US3241845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonded seals
Assignee: Chicago Rawhide Manufacturing Co Inc
•
Filing: 1961-09-14
•
Granted: 1966-03-22
•
Expires: 1981-09-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Smith
- 👤 Warren W Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:18
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/328; Y; Y10; Y10S; Y10S277/00; Y10S277/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
AN OIL SEAL COMPRISING A CASING HAVING AN AXIALLY EXTENDING MOUNTING PORTION AND A RADIALLY OFFSET SEALING MEMBER MOUNTING PORTION, SAID SEALING MEMBER MOUNTING PORTION BEING OF ANNULAR U-SHAPE WITH THE INNER SIDE SURFACES THEREOF IN UNSTRESSED PARALLEL RELATION, AND A SEALING MEMBER FORMED FROM HOMOGENEOUS RESINOUS MATERIAL INCLUDING A BASE PORTION OF BLOCK-LIKE CONFIGURATION FILLING SAID SEALING MEMBER MOUNTING PORTION AND CONTINUOUSLY BONDED AND MOLDED IN UNSTRESSED CONDITION TO THE INNER SURFACES THEREOF, SAID BASE PORTION HAVING FORMED INTEGRAL THEREWITH AN AXIALLY PROJECTING AND RADIALLY OFFSET FLEXIBLE DIAPHRAGM PORTION AND A SEALING LIP PORTION, SAID DIAPHRAGM PORTION INCLUDING A PROJECTING PORTION WHICH OVERLIES AN EDGE SURFACE OF SAID SEALING MEMBER MOUNTING PORTION AND IS BONDED THERETO IN BACKED-UP RELATION THEREBY, SAID SEALING MEMBER MOUNTING PORTION FULLY CONFINING SUBSTANTIALLY ALL OF SAID SEALING MEMBER BASE PORTION.
Claim 2
Dependent Claim
136 words
AN OIL SEAL COMPRISING A CASING HAVING AN AXIALLY EXTENDING MOUNTING PORTION AND A RADIALLY OFFSET SEALING MEMBER MOUNTING PORTION, SAID SEALING MEMBER MOUNTING PORTION BEING OF ANNULAR U-SHAPE WITH THE INNER SIDE SURFACES THEREOF IN UNSTRESSED PARALLEL RELATION, AND A SEALING MEMBER FORMED FROM HOMOGENEOUS RESINOUS MATERIAL INCLUDING A BASE PORTION OF BLOCK-LIKE CONFIGURATION FILLING SAID SEALING MEMBER MOUNTING PORTION AND CONTINUOUSLY BONDED AND MOLDED IN UNSTRESSED CONDITION TO THE INNER SURFACES THEREOF, SAID BASE PORTION HAVING FORMED INTEGRAL THEREWITH AN AXIALLY PROJECTING AND RADIALLY OFFSET FLEXIBLE DIAPHRAGM PORTION AND A SEALING LIP PORTION, SAID DIAPHRAGM PORTION INCLUDING A PROJECTING PORTION WHICH OVERLIES AN EDGE SURFACE OF SAID SEALING MEMBER MOUNTING PORTION AND IS BONDED THERETO IN BACKED-UP RELATION THEREBY, SAID SEALING MEMBER MOUNTING PORTION FULLY CONFINING SUBSTANTIALLY ALL OF SAID SEALING MEMBER BASE PORTION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |