US3299546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary snow plow
Assignee: Individual
•
Filing: 1964-04-13
•
Granted: 1967-01-24
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Alvin C Ibisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/08; E01H5/09; E01H5/096
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
277 words
IN A ROTARY SNOW PLOW, A ROTOR COMPRISING: (A) A SUBSTANTIALLY CIRCULAR BACK PLATE HAVING A FRONT FACE AND A REAR FACE, (B) A PLURALITY OF SUBSTANTIALLY FLAT PADDLES HAVING A FORWARD EDGE AND A REAR EDGE AND BEING SECURED AT SAID REAR EDGE TO SAID BACK PLATE FRONT FACE IN SUBSTANTIALLY PERPENDICULAR RELATION, (C) EACH OF SAID PADDLES BEING SECURED TO THE NEXT ADJACENT PADDLE TO FORM A HOUSING EXTENDING OUTWARDLY FROM THE CENTER OF SAID BACK PLATE FRONT FACE IN SUBSTANTIALLY PERPENDICULAR RELATION, (D) SAID HOUSING BEING ADAPTED TO BE FIXEDLY MOUNTED ON A SUBSTANTIALLY HORIZONTAL ROTATABLE SHAFT, (E) SAID BACK PLATE AND SAID PADDLES DEFINING A PLURALITY OF SUBSTANTIALLY EQUAL SIZE POCKETS, (F) A BLADE SECURED IN FRONT OF EACH OF SAID POCKETS, THE OUTLINE OF SAID BLADES BEING APPROXIMATELY THE SAME AS THAT OF THE CROSS-SECTION OF THE ADJACENT POCKET, (G) EACH BLADE HAVING A FIRST FLAT PORTION HAVING A CIRCUMFERENTIAL EDGE AND A SECOND FORWARDLY SLOPING PORTION HAVING A CIRCUMFERENTIAL EDGE WHEREBY AN OPENING IS DEFINED BETWEEN THE ADJACENT FIRST AND SECOND PORTIONS OF EACH ADJACENT PAIR OF BLADES TO PROVIDE A FRONT ENTRANCE TO EACH POCKET, (H) A CIRCUMFERENTIAL TRIANGULAR-SHAPED PANEL SECURED TO SAID ADJACENT FIRST AND SECOND PORTIONS OF EACH ADJACENT PAIR OF BLADES EACH OF SAID CIRCUMFERENTIAL TRIANGULAR-SHAPED PANELS EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF THE CIRCUMFERENTIAL EDGE OF THE SECOND PORTION TO WHICH IT IS ATTACHED AND ONLY A PORTION OF THE LENGTH OF THE CIRCUMFERENTIAL EDGE OF THE FIRST PORTION TO WHICH IT IS ATTACHED, SAID TRIANGULARSHAPED PANELS PROVING A SERIES OF ARCUATE CUTTING EDGES BETWEEN SAID FIRST AND SECOND PORTION OF EACH ADJACENT PAIR OF BLADES.
Claim 2
Dependent Claim
277 words
IN A ROTARY SNOW PLOW, A ROTOR COMPRISING: (A) A SUBSTANTIALLY CIRCULAR BACK PLATE HAVING A FRONT FACE AND A REAR FACE, (B) A PLURALITY OF SUBSTANTIALLY FLAT PADDLES HAVING A FORWARD EDGE AND A REAR EDGE AND BEING SECURED AT SAID REAR EDGE TO SAID BACK PLATE FRONT FACE IN SUBSTANTIALLY PERPENDICULAR RELATION, (C) EACH OF SAID PADDLES BEING SECURED TO THE NEXT ADJACENT PADDLE TO FORM A HOUSING EXTENDING OUTWARDLY FROM THE CENTER OF SAID BACK PLATE FRONT FACE IN SUBSTANTIALLY PERPENDICULAR RELATION, (D) SAID HOUSING BEING ADAPTED TO BE FIXEDLY MOUNTED ON A SUBSTANTIALLY HORIZONTAL ROTATABLE SHAFT, (E) SAID BACK PLATE AND SAID PADDLES DEFINING A PLURALITY OF SUBSTANTIALLY EQUAL SIZE POCKETS, (F) A BLADE SECURED IN FRONT OF EACH OF SAID POCKETS, THE OUTLINE OF SAID BLADES BEING APPROXIMATELY THE SAME AS THAT OF THE CROSS-SECTION OF THE ADJACENT POCKET, (G) EACH BLADE HAVING A FIRST FLAT PORTION HAVING A CIRCUMFERENTIAL EDGE AND A SECOND FORWARDLY SLOPING PORTION HAVING A CIRCUMFERENTIAL EDGE WHEREBY AN OPENING IS DEFINED BETWEEN THE ADJACENT FIRST AND SECOND PORTIONS OF EACH ADJACENT PAIR OF BLADES TO PROVIDE A FRONT ENTRANCE TO EACH POCKET, (H) A CIRCUMFERENTIAL TRIANGULAR-SHAPED PANEL SECURED TO SAID ADJACENT FIRST AND SECOND PORTIONS OF EACH ADJACENT PAIR OF BLADES EACH OF SAID CIRCUMFERENTIAL TRIANGULAR-SHAPED PANELS EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF THE CIRCUMFERENTIAL EDGE OF THE SECOND PORTION TO WHICH IT IS ATTACHED AND ONLY A PORTION OF THE LENGTH OF THE CIRCUMFERENTIAL EDGE OF THE FIRST PORTION TO WHICH IT IS ATTACHED, SAID TRIANGULARSHAPED PANELS PROVING A SERIES OF ARCUATE CUTTING EDGES BETWEEN SAID FIRST AND SECOND PORTION OF EACH ADJACENT PAIR OF BLADES.
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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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |