US3081847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dashpot
Assignee: Holley Performance Products Inc
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Filing: 1961-12-26
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Granted: 1963-03-19
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Marion L Smitley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
F; F02; F02M; F02M19/00; F02M19/12; F02M19/122; Y; Y10; Y10S; Y10S261/00; Y10S261/18; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
A DASHPOT COMPRISING A HOUSING HAVING AN OPENING THEREIN, AN INTEGRAL DIAPHRAGM HAVING INNER AND OUTER ANNULAR ZONES AND SPANNING THE INTERIOR OF SAID HOUSING, MEANS CONNECTING THE OUTER PERIPHERY OF THE OUTER ZONE OF SAID DIAPHRAGM TO SAID HOUSING, A PAIR OF MEMBERS MAINTAINED IN AXIALLY SPACED RELATION, MEANS SECURING THE INNER PERIPHERY OF THE OUTER ZONE OF SAID DIAPHRAGM BETWEEN SAID MEMBERS, SAID MEMBERS BEING SPACED APART INWARDLY OF SAID SECURING MEANS AN AXIAL DISTANCE IN EXCESS OF THE THICKNESS OF THE INNER ZONE OF SAID DIAPHRAGM, AN ELONGATED ROD SECURED TO SAID MEMBERS CENTRALLY THEREOF AND EXTENDING THROUGH A CENTRALLY LOCATED OPENING PROVIDED IN THE INNER ZONE OF SAID DIAPHRAGM WITH CLEARANCE THEREBETWEEN, SAID ROD ALSO EXTENDING THROUGH THE OPENING IN SAID HOUSING, RESILIENT MEANS IN SAID HOUSING FOR BIASING THE ROD OUT OF SAID HOUSING, AN INTEGRAL FLAP VALVE STRUCK OUT OF THE INNER ZONE OF SAID DIAPHRAGM, SAID FLAP VALVE BEING HINGEDLY CONNECTED TO SAID DIAPHRAGM AND ADAPTED TO BE MOVED IN THE SPACE BETWEEN SAID MEMBERS, THE OUTER PERIPHERY OF THE PORTION OF SAID FLAP VALVE WHICH IS FREE BEING SPACED FROM THE REMAINING PORTION OF SAID DIAPHRAGM BY A CONTINUOUS ELONGATED ARCUATE GROOVE WHICH IS CONCENTRIC TO THE AXIS OF SAID ROD AND HAS AN ANGULAR EXTENT OF APPROXIMATELY 270*, ONE OF SAID MEMBERS HAVING AN OPENING THERETHROUGH LATERALLY OUTWARDLY WITH RESPECT TO THE AXIS OF SAID ROD AND LATERALLY INWARDLY
Claim 2
Dependent Claim
238 words
A DASHPOT COMPRISING A HOUSING HAVING AN OPENING THEREIN, AN INTEGRAL DIAPHRAGM HAVING INNER AND OUTER ANNULAR ZONES AND SPANNING THE INTERIOR OF SAID HOUSING, MEANS CONNECTING THE OUTER PERIPHERY OF THE OUTER ZONE OF SAID DIAPHRAGM TO SAID HOUSING, A PAIR OF MEMBERS MAINTAINED IN AXIALLY SPACED RELATION, MEANS SECURING THE INNER PERIPHERY OF THE OUTER ZONE OF SAID DIAPHRAGM BETWEEN SAID MEMBERS, SAID MEMBERS BEING SPACED APART INWARDLY OF SAID SECURING MEANS AN AXIAL DISTANCE IN EXCESS OF THE THICKNESS OF THE INNER ZONE OF SAID DIAPHRAGM, AN ELONGATED ROD SECURED TO SAID MEMBERS CENTRALLY THEREOF AND EXTENDING THROUGH A CENTRALLY LOCATED OPENING PROVIDED IN THE INNER ZONE OF SAID DIAPHRAGM WITH CLEARANCE THEREBETWEEN, SAID ROD ALSO EXTENDING THROUGH THE OPENING IN SAID HOUSING, RESILIENT MEANS IN SAID HOUSING FOR BIASING THE ROD OUT OF SAID HOUSING, AN INTEGRAL FLAP VALVE STRUCK OUT OF THE INNER ZONE OF SAID DIAPHRAGM, SAID FLAP VALVE BEING HINGEDLY CONNECTED TO SAID DIAPHRAGM AND ADAPTED TO BE MOVED IN THE SPACE BETWEEN SAID MEMBERS, THE OUTER PERIPHERY OF THE PORTION OF SAID FLAP VALVE WHICH IS FREE BEING SPACED FROM THE REMAINING PORTION OF SAID DIAPHRAGM BY A CONTINUOUS ELONGATED ARCUATE GROOVE WHICH IS CONCENTRIC TO THE AXIS OF SAID ROD AND HAS AN ANGULAR EXTENT OF APPROXIMATELY 270*, ONE OF SAID MEMBERS HAVING AN OPENING THERETHROUGH LATERALLY OUTWARDLY WITH RESPECT TO THE AXIS OF SAID ROD AND LATERALLY INWARDLY
References Cited (Backward Citations)
US2741474A
Cited
US2866862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |