US3221424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rake-type loader for scraper
Assignee: HANCOCK Manufacturing CO
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Filing: 1963-05-15
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Granted: 1965-12-07
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 James E Hancock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:49
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/657; E02F3/6454; E02F3/6481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
APPARATUS FOR HANDLING DIRT COMRPISING: (A) A MOBILE FRAME, (B) A DIRT COLLECTING BOX HAVING SIDE WALLS AND A BOTTOM, AND A DOOR OPENING IN SAID BOTTOM, (C) SCRAPER MEANS FOR LOOSENING SAID DIRT FOR MOVEMENT INTO THE DIRT COLLECTING BOX AS THE APPARATUS IS MOVED FORWARDLY, (D) MEANS MOUNTED ON THE DIRT COLLECTING BOX FOR MOVEMENT OF THE DIRT INTO SAID BOX AS IT IS LOOSENED BY THE SCRAPER MEANS, SAID MEANS INCLUDING A FRAME PIVOTALLY MOUNTED ON THE REAR PORTION OF SAID BOX AND HAVING PAIRS OF FORWARDLY EXTENDING ARMS ON EACH SIDE OF SAID BOX AND HAVING ONE OF THEIR ENDS PIVOTALLY ATTACHED TO SAID FRAME IN SPACED RELATION, A RAKING ELEMENT ON THE FORWARD ENDS OF SAID PAIRS OF ARMS AND EXTENSIBLE AND RETRACTABLE MEANS CONNECTED TO SAID BOX AND TO SAID FRAME AND TO SAID SIDE WALLS OF THE BOX AND TO A PAIR OF SAID ARMS FOR MOVEMENT OF THE RAKING ELEMENT IN AN UPWARDLY AND FORWARDLY DIRECTION AND IN A DOWNWARDLY AND REARWARDLY DIRECTION.
Claim 2
Dependent Claim
171 words
APPARATUS FOR HANDLING DIRT COMRPISING: (A) A MOBILE FRAME, (B) A DIRT COLLECTING BOX HAVING SIDE WALLS AND A BOTTOM, AND A DOOR OPENING IN SAID BOTTOM, (C) SCRAPER MEANS FOR LOOSENING SAID DIRT FOR MOVEMENT INTO THE DIRT COLLECTING BOX AS THE APPARATUS IS MOVED FORWARDLY, (D) MEANS MOUNTED ON THE DIRT COLLECTING BOX FOR MOVEMENT OF THE DIRT INTO SAID BOX AS IT IS LOOSENED BY THE SCRAPER MEANS, SAID MEANS INCLUDING A FRAME PIVOTALLY MOUNTED ON THE REAR PORTION OF SAID BOX AND HAVING PAIRS OF FORWARDLY EXTENDING ARMS ON EACH SIDE OF SAID BOX AND HAVING ONE OF THEIR ENDS PIVOTALLY ATTACHED TO SAID FRAME IN SPACED RELATION, A RAKING ELEMENT ON THE FORWARD ENDS OF SAID PAIRS OF ARMS AND EXTENSIBLE AND RETRACTABLE MEANS CONNECTED TO SAID BOX AND TO SAID FRAME AND TO SAID SIDE WALLS OF THE BOX AND TO A PAIR OF SAID ARMS FOR MOVEMENT OF THE RAKING ELEMENT IN AN UPWARDLY AND FORWARDLY DIRECTION AND IN A DOWNWARDLY AND REARWARDLY DIRECTION.
References Cited (Backward Citations)
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |