Patent US3224591A successfully refreshed from Google Patents.
US3224591A
Expired / Lapsed
US
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Oil filter gasket support
Assignee: Fram Corp
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Filing: 1963-04-19
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Granted: 1965-12-21
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Expires: 1983-04-19
Abstract
No abstract record available.
Inventors
- 👤 William T Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:40
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/03; B; B01; B01D; B01D27/00; B01D27/04; B01D27/06; B01D27/08; B01D27/10; B01D27/101; B01D27/103; B01D27/106; B01D35/00; B01D35/14; C; C03; C03C; C03C27/00; C03C27/06; C03C27/10; B01D2201/00; B01D2201/34; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN AN OIL FILTER OF THE SCREW-ON THROW-AWAY TYPE COMPRISING A CUP-SHAPED SHELL, A FILTER ELEMENT HOUSED THEREIN, A THIN METAL MEMBER CLOSING THE INLET END OF THE SHELL AND HAVING A THREADED CENTRAL RING AND AN OIL PASSAGE THROUGH SUCH RING, SAID MEMBER BEING BENT WITHIN THE SHELL WALL AT SOME DISTANCE THEREFROM TO FORM AN ANNULAR REINFORCING RIB HAVING AN APPROXIMATELY VERTICAL BAND AND SAID MEMBER ALSO HAVING OIL HOLES CUT THERETHROUGH INWARDLY OF THE BAND SO AS TO FORM TABS SPACED INWARDLY OF THE BAND, AND A SEALING ANNULAR GASKET CONFINED IN THE SPACE BETWEEN THE BAND AND TABS, THAT IMPROVEMENT COMPRISING A GASKET SUPPORTING RING SEPARATE FROM SAID THIN METAL MEMBER CONFINED BETWEEN THE INNER WALL OF THE GASKET AND THE TABS AND FORMED A CONTINUOUS SUPPORT FOR THIS INNER GASKET WALL.
Claim 2
Dependent Claim
136 words
IN AN OIL FILTER OF THE SCREW-ON THROW-AWAY TYPE COMPRISING A CUP-SHAPED SHELL, A FILTER ELEMENT HOUSED THEREIN, A THIN METAL MEMBER CLOSING THE INLET END OF THE SHELL AND HAVING A THREADED CENTRAL RING AND AN OIL PASSAGE THROUGH SUCH RING, SAID MEMBER BEING BENT WITHIN THE SHELL WALL AT SOME DISTANCE THEREFROM TO FORM AN ANNULAR REINFORCING RIB HAVING AN APPROXIMATELY VERTICAL BAND AND SAID MEMBER ALSO HAVING OIL HOLES CUT THERETHROUGH INWARDLY OF THE BAND SO AS TO FORM TABS SPACED INWARDLY OF THE BAND, AND A SEALING ANNULAR GASKET CONFINED IN THE SPACE BETWEEN THE BAND AND TABS, THAT IMPROVEMENT COMPRISING A GASKET SUPPORTING RING SEPARATE FROM SAID THIN METAL MEMBER CONFINED BETWEEN THE INNER WALL OF THE GASKET AND THE TABS AND FORMED A CONTINUOUS SUPPORT FOR THIS INNER GASKET WALL.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |