US3083479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pusher type carrier scraper
Assignee: Individual
•
Filing: 1960-07-01
•
Granted: 1963-04-02
•
Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 Carl P Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:01
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/657; E02F3/6454; E02F3/6472; E02F3/656
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
THE COMBINATION WITH A PRIME MOVER OF A PUSHER TYPE CARRIER SCRAPER COMPRISING A FRAME, A BOWL PIVOTALLY MOUNTED ON SAID FRAME AND ON AN AXIS TRANSVERSE TO SAID FRAME HAVING A FORWARD DIGGING EDGE AND SUBSTANTIALLY PARALLEL SIDES, A BOTTOM FOR SAID BOWL PIVOTALLY MOUNTED IN SAID BOWL AND TURNING ON AN AXIS NORMAL TO SAID SIDES OF SAID BOWL, A PIVOTALLY MOUNTED CLOSING APRON, CONNECTING MEANS BETWEEN THE FRONT OF SAID PRIME MOVER AND THE REAR OF SAID CARRIER SCRAPER, INDEPENDENT SUSPENSION MEANS FOR SAID FRAME INCLUDING TWO CASTER WHEELS MOUNTED IN HYDRAULIC CYLINDERS RIGIDLY AFFIXED TO SAID FRAME, OPERATING MEANS COACTING TO OPEN SAID APRON AND TO RAISE SAID BOTTOM, OPERATING MEANS FOR ROTATING SAID BOWL, AND CONTROLS IN SAID PRIME MOVER FOR SAID OPENING AND CLOSING OF SAID APRON AND SAID BOTTOM AND FOR ROTATING SAID BOWL.
Claim 2
Dependent Claim
141 words
THE COMBINATION WITH A PRIME MOVER OF A PUSHER TYPE CARRIER SCRAPER COMPRISING A FRAME, A BOWL PIVOTALLY MOUNTED ON SAID FRAME AND ON AN AXIS TRANSVERSE TO SAID FRAME HAVING A FORWARD DIGGING EDGE AND SUBSTANTIALLY PARALLEL SIDES, A BOTTOM FOR SAID BOWL PIVOTALLY MOUNTED IN SAID BOWL AND TURNING ON AN AXIS NORMAL TO SAID SIDES OF SAID BOWL, A PIVOTALLY MOUNTED CLOSING APRON, CONNECTING MEANS BETWEEN THE FRONT OF SAID PRIME MOVER AND THE REAR OF SAID CARRIER SCRAPER, INDEPENDENT SUSPENSION MEANS FOR SAID FRAME INCLUDING TWO CASTER WHEELS MOUNTED IN HYDRAULIC CYLINDERS RIGIDLY AFFIXED TO SAID FRAME, OPERATING MEANS COACTING TO OPEN SAID APRON AND TO RAISE SAID BOTTOM, OPERATING MEANS FOR ROTATING SAID BOWL, AND CONTROLS IN SAID PRIME MOVER FOR SAID OPENING AND CLOSING OF SAID APRON AND SAID BOTTOM AND FOR ROTATING SAID BOWL.
References Cited (Backward Citations)
US1233839A
Cited
US1516619A
Cited
US2214240A
Cited
US2249356A
Cited
US2395244A
Cited
US2496515A
Cited
US2669043A
Cited
US2650440A
Cited
US2682120A
Cited
US2907125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |