US3071124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm controlled air flow limiting valve for engine governing
Assignee: Holley Performance Products Inc
•
Filing: 1958-10-20
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Granted: 1963-01-01
•
Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:06
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0235; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7752
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN ENGINE GOVERNING MECHANISM COMPRISING A CARBURETOR BODY SITUATED ON AN ENGINE INTAKE MANIFOLD AND HAVING A BARREL WITH A THROTTLE PLATE PIVOTABLE THEREIN, VENTURI MEANS BEING LOCATED IN SAID BARREL FOR PROVIDING A VACUUM, MEANS CONNECTED TO SAID MANIFOLD FOR SUPPLYING A VACUUM, A FLUID MOTOR CONNECTED TO SAID THROTTLE FOR ACTUATING SAME, OPPOSED VACUUM CHAMBERS SEPARATED FROM CONNECTED PRESSURE CHAMBERS BY SPRING LOADED DIAPHRAGMS OF DIFFERENT AREAS, WITH THE SMALLER OF SAID DIAPHRAGMS HAVING A LIGHTER SPRING THAN THE LARGER OF SAID DIAPHRAGMS, A DIAPHRAGM CONNECTED CONE BEING INSERTED THROUGH THE CONNECTION BETWEEN THE PRESSURE CHAMBERS, SAID CONE DECREASING THE CONNECTION AS THE SMALLER DIAPHRAGM IS MOVED AGAINST ITS SPRING, SAID VENTURI AND MANIFOLD VACUUM MEANS CONNECTED TO SAID VACUUM CHAMBERS AND TO THE PRESSURE CHAMBER ADJACENT SAID LARGER DIAPHRAGM, MEANS RESPONSIVE TO ENGINE SPEED FOR
Claim 2
Dependent Claim
138 words
AN ENGINE GOVERNING MECHANISM COMPRISING A CARBURETOR BODY SITUATED ON AN ENGINE INTAKE MANIFOLD AND HAVING A BARREL WITH A THROTTLE PLATE PIVOTABLE THEREIN, VENTURI MEANS BEING LOCATED IN SAID BARREL FOR PROVIDING A VACUUM, MEANS CONNECTED TO SAID MANIFOLD FOR SUPPLYING A VACUUM, A FLUID MOTOR CONNECTED TO SAID THROTTLE FOR ACTUATING SAME, OPPOSED VACUUM CHAMBERS SEPARATED FROM CONNECTED PRESSURE CHAMBERS BY SPRING LOADED DIAPHRAGMS OF DIFFERENT AREAS, WITH THE SMALLER OF SAID DIAPHRAGMS HAVING A LIGHTER SPRING THAN THE LARGER OF SAID DIAPHRAGMS, A DIAPHRAGM CONNECTED CONE BEING INSERTED THROUGH THE CONNECTION BETWEEN THE PRESSURE CHAMBERS, SAID CONE DECREASING THE CONNECTION AS THE SMALLER DIAPHRAGM IS MOVED AGAINST ITS SPRING, SAID VENTURI AND MANIFOLD VACUUM MEANS CONNECTED TO SAID VACUUM CHAMBERS AND TO THE PRESSURE CHAMBER ADJACENT SAID LARGER DIAPHRAGM, MEANS RESPONSIVE TO ENGINE SPEED FOR
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |