Patent US3219309A successfully refreshed from Google Patents.
US3219309A
Expired / Lapsed
US
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Pressure ratio device
Assignee: Holley Performance Products Inc
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Filing: 1962-05-09
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Granted: 1965-11-23
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Alberani Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:33
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0207; G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; G05D16/185; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PRESSURE RATIO DEVICE COMPRISING FIRST AND SECOND HOUSINGS, A SLAVE MEMBER AND VALVE SEAT IN SAID FIRST HOUSING, A DIAPHRAGM AND A BELLOWS IN SAID SECOND HOUSING INFLUENCED BY TWO DISTINCT FLUID PRESSURES, A VALVE MEANS IN SAID SECOND HOUSING HAVING A RESILIENT MEANS BIASING SAID VALVE MEANS CLOSED AND BEING OPENED AT TIMES AGAINST SAID RESILIENT MEANT BY THE ACTION OF SAID DIAPHRAGM AND BELLOWS, A THIRD PRESSURE INTERMEDIATE SAID TWO DISTINCT FLUID PRESSURES AND A FOURTH PRESSURE HIGHER THAN SAID TWO DISTINCT FLUID PRESSURES FOR INFLUENCING SAID SLAVE MEMBER AND
Claim 2
Dependent Claim
93 words
A PRESSURE RATIO DEVICE COMPRISING FIRST AND SECOND HOUSINGS, A SLAVE MEMBER AND VALVE SEAT IN SAID FIRST HOUSING, A DIAPHRAGM AND A BELLOWS IN SAID SECOND HOUSING INFLUENCED BY TWO DISTINCT FLUID PRESSURES, A VALVE MEANS IN SAID SECOND HOUSING HAVING A RESILIENT MEANS BIASING SAID VALVE MEANS CLOSED AND BEING OPENED AT TIMES AGAINST SAID RESILIENT MEANT BY THE ACTION OF SAID DIAPHRAGM AND BELLOWS, A THIRD PRESSURE INTERMEDIATE SAID TWO DISTINCT FLUID PRESSURES AND A FOURTH PRESSURE HIGHER THAN SAID TWO DISTINCT FLUID PRESSURES FOR INFLUENCING SAID SLAVE MEMBER AND
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |