Patent US3259404A successfully refreshed from Google Patents.
US3259404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed joint and gasket therefor
Assignee: Parker Hannifin Corp
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Filing: 1963-10-23
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Granted: 1966-07-05
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Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Richard P Papenguth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:16
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/008; F16B; F16B33/00; F16B33/004; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/104; F16J15/12; F16J15/121; F16J15/127; F16L19/00; Y; Y10; Y10S; Y10S411/00; Y10S411/915; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A JOINT, A PAIR OF THREADEDLY ENGAGED MEMBERS EXPOSED TO A FLUID, AN ANNULAR GASKET SEALINGLY ENGAGING ONE OF SAID MEMBERS AND HAVING A CIRCULAR SURFACE OF A WIDTH GREATER THAN THE PITCH OF THE THREAD ON THE OTHER MEMBER BUT LESS THAN TWICE SUCH PITCH FOR ENGAGING THE CRESTS OF THE THREAD ON SAID OTHER MEMBER THROUGHOUT A CIRCUMFERENTIAL ARC IN EXCESS OF 360* BUT LESS THAN 720* WHEREBY THERE IS A SECTION OF CIRCUMFERENTIAL OVERLAP OF SAID ENGAGED CRESTS AND WHEREBY AXIAL LEAKAGE OF FLUID PAST SAID ENGAGED CRESTS IS PREVENTED, SAID GASKET HAVING A PLURALITY OF RESILIENTY DEFORMABLE PROJECTION MEANS CIRCUMFERENTIALLY SPACED ABOUT SAID SURFACE AND EXTENDING RADIALLY THEREFROM, SUCH CIRCUMFERENTAIL SPACING BEING NO GREATER THAN THE CIRCUMFERENTIAL LENGTH OF SAID OVERLAP SECTION WHEREBY THERE WILL BE AT LEAST A PORTION OF ONE OF SAID PROJECTION MEANS WITHIN THE OVERLAP SECTION REGARD-
Claim 2
Dependent Claim
146 words
IN A JOINT, A PAIR OF THREADEDLY ENGAGED MEMBERS EXPOSED TO A FLUID, AN ANNULAR GASKET SEALINGLY ENGAGING ONE OF SAID MEMBERS AND HAVING A CIRCULAR SURFACE OF A WIDTH GREATER THAN THE PITCH OF THE THREAD ON THE OTHER MEMBER BUT LESS THAN TWICE SUCH PITCH FOR ENGAGING THE CRESTS OF THE THREAD ON SAID OTHER MEMBER THROUGHOUT A CIRCUMFERENTIAL ARC IN EXCESS OF 360* BUT LESS THAN 720* WHEREBY THERE IS A SECTION OF CIRCUMFERENTIAL OVERLAP OF SAID ENGAGED CRESTS AND WHEREBY AXIAL LEAKAGE OF FLUID PAST SAID ENGAGED CRESTS IS PREVENTED, SAID GASKET HAVING A PLURALITY OF RESILIENTY DEFORMABLE PROJECTION MEANS CIRCUMFERENTIALLY SPACED ABOUT SAID SURFACE AND EXTENDING RADIALLY THEREFROM, SUCH CIRCUMFERENTAIL SPACING BEING NO GREATER THAN THE CIRCUMFERENTIAL LENGTH OF SAID OVERLAP SECTION WHEREBY THERE WILL BE AT LEAST A PORTION OF ONE OF SAID PROJECTION MEANS WITHIN THE OVERLAP SECTION REGARD-
References Cited (Backward Citations)
GB537654A
Cited
US2706656A
Cited
US2672069A
Cited
US2761347A
Cited
US2919147A
Cited
US2895367A
Cited
US2765834A
Cited
GB836197A
Cited
US3009722A
Cited
GB866922A
Cited
US2983534A
Cited
US2982573A
Cited
US2960353A
Cited
FR1226676A
Cited
US3062557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |