Patent US3215442A successfully refreshed from Google Patents.
US3215442A
Expired / Lapsed
US
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Fluid seal
Assignee: Parker Hannifin Corp
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Filing: 1962-04-27
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Granted: 1965-11-02
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Richard P Papenguth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:00
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/127; F16L; F16L23/00; F16L23/16; F16L23/18; F16L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A SEALING MEMBER COMPRISING AN ANNULAR RIGID BODY HAVING PARALLEL AXIAL END SURFACES, A PAIR OF FLEXIBLE LIP MEANS EXTENDING RADIALLY FROM SAID BODY AND HAVING OUTER FACES INTITIALLY CO-PLANAR WITH SAID END SURFACES, SAID LIP MEANS BEING SPACED FROM EACH OTHER SO AS TO FORM A RECESS THEREBETWEEN, A PACKING OF DEFORMABLE MATERIAL HAVING A FLANGE MEANS OF A THICKNESS SUBSTANTIALLY GREATER THAN SAID LIP MEANS EXTENDING INTO A FILLING SAID RECESS AND TUBULAR PART EXTENDING ACROSS THE GREE ENDS OF SAID LIP MEANS PROJECTING AXIALLY THEREBEYOND, SAID FLANGE MEANS BEING ADAPTED TO BEND SAID LIP MEANS AWAY FROM EACH OTHER TO A POSITION AXIALLY BEYOND SAID END SURFACES WHEN FLUID PRESSURE IS ACTING UPON SAID PACKING.
Claim 2
Dependent Claim
118 words
A SEALING MEMBER COMPRISING AN ANNULAR RIGID BODY HAVING PARALLEL AXIAL END SURFACES, A PAIR OF FLEXIBLE LIP MEANS EXTENDING RADIALLY FROM SAID BODY AND HAVING OUTER FACES INTITIALLY CO-PLANAR WITH SAID END SURFACES, SAID LIP MEANS BEING SPACED FROM EACH OTHER SO AS TO FORM A RECESS THEREBETWEEN, A PACKING OF DEFORMABLE MATERIAL HAVING A FLANGE MEANS OF A THICKNESS SUBSTANTIALLY GREATER THAN SAID LIP MEANS EXTENDING INTO A FILLING SAID RECESS AND TUBULAR PART EXTENDING ACROSS THE GREE ENDS OF SAID LIP MEANS PROJECTING AXIALLY THEREBEYOND, SAID FLANGE MEANS BEING ADAPTED TO BEND SAID LIP MEANS AWAY FROM EACH OTHER TO A POSITION AXIALLY BEYOND SAID END SURFACES WHEN FLUID PRESSURE IS ACTING UPON SAID PACKING.
References Cited (Backward Citations)
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Cited
US2599767A
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Cited
US2717793A
Cited
US3026367A
Cited
US3093581A
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |