Patent US3254919A successfully refreshed from Google Patents.
US3254919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End gate for farm dump truck
Assignee: Individual
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Filing: 1964-06-15
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Granted: 1966-06-07
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Fred W Birchmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:26
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/02; B62D33/023; B62D33/027; B62D33/0273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
APPARATUS FOR USE WITH A FARM DUMP TRUCK HAVING A BED-TILTING MECHANISM OPERATED BY A FLUID PRESSURE SYSTEM, SAID APPARATUS COMPRISING: AN END GATE FOR SAID TRUCK; STRUCTURE FOR MOUNTING THE GATE ON THE TRUCK FOR SWINGING MOVEMENT ABOUT A NORMALLY HORIZONTAL AXIS BETWEEN A NORMAL, CLOSED POSITION AND AN OPERATED, OPEN POSITION ABOVE THE BED, SAID STRUCTURE INCLUDING A FLUID PRESSURE OPERATED PISTON AND CYLINDER ASSEMBLY COUPLED WITH SAID GATE FOR OPERATING THE LATTER; FLUID COUPLING MEANS FOR COMMUNICATING SAID ASSEMBLY WITH SAID FLUID PRESSURE SYSTEM OF THE TRUCK, WHEREBY TO AUTOMATICALLY OPEN THE GATE WHEN THE BED-TILTING MECHANISM IS ACTUATED; AND MEANS COUPLED WITH SAID GATE FOR AUTOMATICALLY LOCKING THE LATTER IN SAID OPEN POSITION WHEN THE BED OF THE TRUCK MOVES TO ITS DUMPING DISPOSITION, WHEREBY TO PREVENT CLOSURE OF THE GATE DURING FLUID PRESSURE FLUCTUATIONS AS THE LOAD IS DUMPED FROM THE BED,
Claim 2
Dependent Claim
147 words
APPARATUS FOR USE WITH A FARM DUMP TRUCK HAVING A BED-TILTING MECHANISM OPERATED BY A FLUID PRESSURE SYSTEM, SAID APPARATUS COMPRISING: AN END GATE FOR SAID TRUCK; STRUCTURE FOR MOUNTING THE GATE ON THE TRUCK FOR SWINGING MOVEMENT ABOUT A NORMALLY HORIZONTAL AXIS BETWEEN A NORMAL, CLOSED POSITION AND AN OPERATED, OPEN POSITION ABOVE THE BED, SAID STRUCTURE INCLUDING A FLUID PRESSURE OPERATED PISTON AND CYLINDER ASSEMBLY COUPLED WITH SAID GATE FOR OPERATING THE LATTER; FLUID COUPLING MEANS FOR COMMUNICATING SAID ASSEMBLY WITH SAID FLUID PRESSURE SYSTEM OF THE TRUCK, WHEREBY TO AUTOMATICALLY OPEN THE GATE WHEN THE BED-TILTING MECHANISM IS ACTUATED; AND MEANS COUPLED WITH SAID GATE FOR AUTOMATICALLY LOCKING THE LATTER IN SAID OPEN POSITION WHEN THE BED OF THE TRUCK MOVES TO ITS DUMPING DISPOSITION, WHEREBY TO PREVENT CLOSURE OF THE GATE DURING FLUID PRESSURE FLUCTUATIONS AS THE LOAD IS DUMPED FROM THE BED,
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |