Patent US3290093A successfully refreshed from Google Patents.
US3290093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dump truck
Assignee: LeTourneau Westinghouse Co
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Filing: 1964-10-13
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Granted: 1966-12-06
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Lyle E Eaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/06; B60P1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A DUMP TRUCK HAVING A FRAME AND A BODY PIVOTALLY MOUNTED THEREON FOR PIVOTING ABOUT A HORIZONTAL AXIS, THE BODY BEING OF THE TYPE CAPABLE OF BEING HEATED BY GASES FROM THE TRUCK ENGINE, THE IMPROVEMENT COMPRISING: AN EXHAUST CONDUIT ASSOCIATED WITH SAID FRAME AND CONNECTED TO SAID ENGINE TO RECEIVE THE HOT GASES EXPELLED THEREFROM, DUCT MEANS ON SAID BODY FOR CONDUCTING EXHAUST GASES ABOUT SAID BODY, AND ROTATABLE JOINT MEANS HAVING A HORIZONTAL ROTATIONAL AXIS, SAID JOINT MEANS CONNECTING SAID EXHAUST CONDUIT AND SAID DUCT MEANS, SAID ROTATION AXIS IN AXIAL ALIGNMENT WITH THE HORIZONTAL PIVOT AXIS OF SAID BODY TO SAID FRAME, WHEREBY EXHAUST GASES ARE PERMITTED TO ENTER SAID DUCT MEANS ON SAID BODY IRRESPECTIVE OF THE POSITION OF SAID BODY RELATIVE TO SAID FRAME.
Claim 2
Dependent Claim
130 words
IN A DUMP TRUCK HAVING A FRAME AND A BODY PIVOTALLY MOUNTED THEREON FOR PIVOTING ABOUT A HORIZONTAL AXIS, THE BODY BEING OF THE TYPE CAPABLE OF BEING HEATED BY GASES FROM THE TRUCK ENGINE, THE IMPROVEMENT COMPRISING: AN EXHAUST CONDUIT ASSOCIATED WITH SAID FRAME AND CONNECTED TO SAID ENGINE TO RECEIVE THE HOT GASES EXPELLED THEREFROM, DUCT MEANS ON SAID BODY FOR CONDUCTING EXHAUST GASES ABOUT SAID BODY, AND ROTATABLE JOINT MEANS HAVING A HORIZONTAL ROTATIONAL AXIS, SAID JOINT MEANS CONNECTING SAID EXHAUST CONDUIT AND SAID DUCT MEANS, SAID ROTATION AXIS IN AXIAL ALIGNMENT WITH THE HORIZONTAL PIVOT AXIS OF SAID BODY TO SAID FRAME, WHEREBY EXHAUST GASES ARE PERMITTED TO ENTER SAID DUCT MEANS ON SAID BODY IRRESPECTIVE OF THE POSITION OF SAID BODY RELATIVE TO SAID FRAME.
References Cited (Backward Citations)
US1884538A
Cited
US1942207A
Cited
GB735205A
Cited
US2974997A
Cited
US3134628A
Cited
US3116803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |