US3189013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection pump
Assignee: LEYLAND MOTOR WORKS
•
Filing: 1962-12-19
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Granted: 1965-06-15
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Lee George Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:12
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/08; F02M41/10; F02M41/12; F02M41/123; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A LIQUID FUEL INJECTION PUMP COMPRISING A PUMP CYLINDER; A TUBULAR PLUNGER; A POPPET VALVE HAVING A STEM EXTENDING THROUGH THE BORE OF SAID PLUNGER LEAVING FREE SPACE FOR THE PASSAGE OF FUEL AND HAVING A HEAD ADAPTED TO CARRY THE HYDRAULIC PUMPING LOAD AND ARRANGED TO SEAT ON THE END OF THE SAID PLUNGER TO FORM A CONTROLLABLE VALVE; A SPRING INTERPOSED BETEEN SAID STEM AND SAID PLUNGER TENDING TO CLOSE THE VALVE FORMED BETWEEN THE PUMPING HEAD AND THE PLUNGER; CO-OPERATING CAM AND CAM FOLLOWER; THE ONE CARRIED BY SAID PLUNGER AND THE OTHER HELD WITHIN A CASING OF THE PUMP; CO-OPERATING CAM AND CAM FOLLOWER; THE ONE CARRIED BY SAID POPPET VALVE SPINDLE AND THE OTHER BY SAID PUMP CASING; AND MEANS FOR ROTATING SAID PUMPING HEAD SPINDLE AND SAID PLUNGER TOGETHER, SAID CAMS AND CAM FOLLOWERS BEING SO ARRANGED THAT THE PUMPING HEAD AND THE PLUNGER MOVE TOGETHER
Claim 2
Dependent Claim
152 words
A LIQUID FUEL INJECTION PUMP COMPRISING A PUMP CYLINDER; A TUBULAR PLUNGER; A POPPET VALVE HAVING A STEM EXTENDING THROUGH THE BORE OF SAID PLUNGER LEAVING FREE SPACE FOR THE PASSAGE OF FUEL AND HAVING A HEAD ADAPTED TO CARRY THE HYDRAULIC PUMPING LOAD AND ARRANGED TO SEAT ON THE END OF THE SAID PLUNGER TO FORM A CONTROLLABLE VALVE; A SPRING INTERPOSED BETEEN SAID STEM AND SAID PLUNGER TENDING TO CLOSE THE VALVE FORMED BETWEEN THE PUMPING HEAD AND THE PLUNGER; CO-OPERATING CAM AND CAM FOLLOWER; THE ONE CARRIED BY SAID PLUNGER AND THE OTHER HELD WITHIN A CASING OF THE PUMP; CO-OPERATING CAM AND CAM FOLLOWER; THE ONE CARRIED BY SAID POPPET VALVE SPINDLE AND THE OTHER BY SAID PUMP CASING; AND MEANS FOR ROTATING SAID PUMPING HEAD SPINDLE AND SAID PLUNGER TOGETHER, SAID CAMS AND CAM FOLLOWERS BEING SO ARRANGED THAT THE PUMPING HEAD AND THE PLUNGER MOVE TOGETHER
References Cited (Backward Citations)
FR1147709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |