US3218211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making lip seals and securing same to casing elements
Assignee: Super Oil Seals and Gaskets Ltd
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Filing: 1964-09-09
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Granted: 1965-11-16
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Expires: 1984-09-09
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Taylor
- 👤 Harold E Crockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:52
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/328; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T428/00; Y10T428/24; Y10T428/24479
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD OF MAKING A LIP SEAL OF THE TYPE COMPRISING A CASING AND A LEATHER ELEMENT CARRIED BY THE CASING TO PRESENT AN EDGE CONSTITUTING A CIRCULAR RESILIENT SEALING LIP, THE METHOD INCLUDING CUTTING A BLANK OF LEATHER TO CORRESPOND IN DIMENSION BETWEEN TWO OPPOSITE ENDS SUBSTANTIALLY TO THE FINAL DIAMETRIC DIMENSIONS OF THE ELEMENT, FORMING SAID ENDS IN CONJOINING RELATION, JOINING SAID ENDS USING A THERMOSETTING RUBBER BASE RESIN ADHESIVE WHICH HAS SUBSTANTIALLY THE SAME TEMPERATURE/FLEXIBILITY CHARACTERISTICS AS THE LEATHER OVER SUBSTANTIALLY THE RANGE OF TEMPERATURES AT WHICH THE LEATHER RETAINS ADEQUATE SEALING FLEXIBILITY, THEREBY TO FOR A CYLINDRICAL RING, SHAPELY SAID RING BY COMPRESSION TO PRESENT A FRUSTOCONICAL FORM OF THE ELEMENT, AND SECURING SAID ELEMENT BY A PORTION THEREOF AT THE RADICALLY OUTER EDGE OF THE FRUSTOCONICAL FORM TO SAID CASING WITH THE RADIALLY INNER EDGE OF THE FRUSTO-CONICAL FORM CONSTITUTING THE SEALING LIP.
Claim 2
Independent Claim
148 words
A METHOD OF MAKING A LIP SEAL OF THE TYPE COMPRISING A CASING AND A LEATHER ELEMENT CARRIED BY THE CASING TO PRESENT AN EDGE CONSTITUTING A CIRCULAR RESILIENT SEALING LIP, THE METHOD INCLUDING CUTTING A BLANK OF LEATHER TO CORRESPOND IN DIMENSION BETWEEN TWO OPPOSITE ENDS SUBSTANTIALLY TO THE FINAL DIAMETRIC DIMENSIONS OF THE ELEMENT, FORMING SAID ENDS IN CONJOINING RELATION, JOINING SAID ENDS USING A THERMOSETTING RUBBER BASE RESIN ADHESIVE WHICH HAS SUBSTANTIALLY THE SAME TEMPERATURE/FLEXIBILITY CHARACTERISTICS AS THE LEATHER OVER SUBSTANTIALLY THE RANGE OF TEMPERATURES AT WHICH THE LEATHER RETAINS ADEQUATE SEALING FLEXIBILITY, THEREBY TO FOR A CYLINDRICAL RING, SHAPELY SAID RING BY COMPRESSION TO PRESENT A FRUSTOCONICAL FORM OF THE ELEMENT, AND SECURING SAID ELEMENT BY A PORTION THEREOF AT THE RADICALLY OUTER EDGE OF THE FRUSTOCONICAL FORM TO SAID CASING WITH THE RADIALLY INNER EDGE OF THE FRUSTO-CONICAL FORM CONSTITUTING THE SEALING LIP.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |