Patent US3567346A successfully refreshed from Google Patents.
US3567346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit fuel injector with modulated injection
Assignee: Motors Liquidation Co
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Filing: 1969-07-14
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Granted: 1971-03-02
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Expires: 1989-07-14
Abstract
Abstract A JERK-TYPE FUEL INJECTOR-PUMP UNIT HAVING A ROTATIVELY ADJUSTABLE PLUNGER AND UPPER AND LOWER MAIN FILL AND BYPASS PORTS IN THE PUMPING CYLINDER, EACH SEQUENTIALLY CLOSABLE AND OPENABLE BY SPACED HELICAL LANDS ON THE PLUNGER TO EFFECT BEGINNING AND ENDING OF INJECTION DURING THE PUMPING STROKE OF THE PLUNGER, THE GROOVE BETWEEN THE LANDS BEING IN CONTINUOUS COMMUNICATION WITH THE PUMPING CYLINDER INWARDLY OF THE PLUNGER AND ALSO HAVING RELATIVELY BRIEF COMMUNICATION WITH A SEPARATE BY-PASS PORT IN THE PUMPING CYLINDER WHILE BOTH MAIN PORTS ARE CLOSED AND THE PLUNGER IS ROTATIVELY ADJUSTED FOR MAXIMUM PUMP OUTPUT.
Inventors
- 👤 Lee T Mekkes
- 👤 Ernest Bader Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:27
CPC Classifications
F; F02; F02M; F02M45/00; F02M45/12; F02M57/00; F02M57/02; F02M59/00; F02M59/20; F02M59/24; F02M59/26; F02M59/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |