US3331149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraper with endless loading conveyor
Assignee: JULIAN D RAPP
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Filing: 1965-02-12
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Granted: 1967-07-18
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Julian D Rapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:31
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/655; E02F3/6454; E02F3/6472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
IN A SCRAPER WHICH INCLUDES A BOWL HAVING A SCRAPING BLADE AT ITS FORWARD END; A SCRAPER-MOUNTED APPARATUS COMPRISING AN ENDLESS LADDER-TYPE CONVEYOR ON THE SCRAPER AND EXTENDING UPWARDLY AND REARWARDLY OVER A PORTION OF SAID BOWL FROM A LOW POINT AHEAD OF THE BLADE AND RELATIVELY CLOSE TO THE GROUND, MEANS MOUNTING THE FORWARD END OF THE CONVEYOR ON THE SCRAPER FOR UPWARD MOVEMENT TO A HIGH POINT A SUBSTANTIAL DISTANCE ABOVE THE GROUND, MEANS TO MOVE THE FORWARD END OF THE CONVEYOR UPWARD TO SAID HIGH POINT, AND CONNECTING MEANS BETWEEN THE REAR PORTION OF THE CONVEYOR AND SCRAPER ARRANGED SO THAT, IN RESPONSE TO MOVEMENT OF THE FORWARD END OF THE CONVEYOR TO SUCH HIGH POINT, SAID CONVEYOR SHIFTS SUBSTANTIALLY TO THE REAR AND OCCUPIES A POSITION IN THE MAIN ABOVE THE BOWL; SAID CONNECTING MEANS BEING EXTENSIBLE AND OPERATIVE, UPON EXTENSION AND WHEN THE CONVEYOR IS IN SAID POSITION ABOVE THE BOWL, TO LIFT THE CONVEYOR A SUBSTANTIAL DISTANCE AT IT REAR END.
Claim 2
Dependent Claim
167 words
IN A SCRAPER WHICH INCLUDES A BOWL HAVING A SCRAPING BLADE AT ITS FORWARD END; A SCRAPER-MOUNTED APPARATUS COMPRISING AN ENDLESS LADDER-TYPE CONVEYOR ON THE SCRAPER AND EXTENDING UPWARDLY AND REARWARDLY OVER A PORTION OF SAID BOWL FROM A LOW POINT AHEAD OF THE BLADE AND RELATIVELY CLOSE TO THE GROUND, MEANS MOUNTING THE FORWARD END OF THE CONVEYOR ON THE SCRAPER FOR UPWARD MOVEMENT TO A HIGH POINT A SUBSTANTIAL DISTANCE ABOVE THE GROUND, MEANS TO MOVE THE FORWARD END OF THE CONVEYOR UPWARD TO SAID HIGH POINT, AND CONNECTING MEANS BETWEEN THE REAR PORTION OF THE CONVEYOR AND SCRAPER ARRANGED SO THAT, IN RESPONSE TO MOVEMENT OF THE FORWARD END OF THE CONVEYOR TO SUCH HIGH POINT, SAID CONVEYOR SHIFTS SUBSTANTIALLY TO THE REAR AND OCCUPIES A POSITION IN THE MAIN ABOVE THE BOWL; SAID CONNECTING MEANS BEING EXTENSIBLE AND OPERATIVE, UPON EXTENSION AND WHEN THE CONVEYOR IS IN SAID POSITION ABOVE THE BOWL, TO LIFT THE CONVEYOR A SUBSTANTIAL DISTANCE AT IT REAR END.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |