Patent US3321025A successfully refreshed from Google Patents.
US3321025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trash remover for plows
Assignee: Individual
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Filing: 1964-09-08
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Granted: 1967-05-23
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Henry A Ellefson
- 👤 Gordon H Ellefson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:18
CPC Classifications
A; A01; A01B; A01B11/00; A01B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
IN A DEVICE OF THE CLASS DESCRIBED: (A) FRAME STRUCTURE INCLUDING A BACKBONE MEMBER EXTENDING DIAGONALLY IN THE DIRECTION OF TRAVEL, (B) A PLURALITY OF BEAMS CARRIED BY AND DEPENDING FROM SAID BACKBONE IN LONGITUDINALLY SPACED RELATIONSHIP THEREALONG, (C) A PLOW BOTTOM SECURED TO AND CARRIED BY THE LOWER END OF EACH OF SAID BEAMS, (D) A PLURALITY OF TRASH-REMOVING MEMBERS, ONE EACH GENERALLY FORWARDLY OF ONE OF SAID BEAMS, (E) SAID MEMBERS BEING IN THE NATURE OF GENERALLY VERTICALLY DISPOSED ARMS OPERATIVELY SECURED TO SAID FRAME STRUCTURE FOR RECIPROCATING MOVEMENTS IN A COMMON PLANE GENERALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID BACKBONE AND IN OVERLYING RELATIONSHIP ONE EACH TO THE FORWARDLY DISPOSED PORTION OF ONE OF SAID PLOW BOTTOMS, (F) SAID MEMBERS BEING RELATIVELY RIGID AND DEFINING STRAIGHT OPPOSITE SELF-CLEANING EDGE PORTIONS, (G) SAID ARMS BEIGN PIVOTALLY SECURED INTERMEDIATE THEIR ENDS TO SAID FRAME STRUCTURE FOR PIVOTAL SWINGING MOVEMENTS OF THE LOWER ENDS THEREOF, AND POWER MEANS FOR SIMULTANEOUSLY IMPARTING SAID MOVEMENTS TO SAID TRASH-REMOVING MEMBERS, AND INCLUDING: (1) A ROTARY MEMBER, (2) A TIE BAR PIVOTALLY CONNECTED TO EACH OF SAID TRASH-REMOVING MEMBERS IN RADIALLY OFFSET RELATIONSHIP TO THE PIVOTAL CONNECTION OF EACH THEREOF, AND (3) A PITMAN ARM PIVOTALLY SECURED AT ONE END TO SAID ROTARY MEMBER AND OPERATIVELY SECURED AT ITS OPPOSITE END TO SAID TRASH-REMOVING MEMBERS.
Claim 2
Dependent Claim
222 words
IN A DEVICE OF THE CLASS DESCRIBED: (A) FRAME STRUCTURE INCLUDING A BACKBONE MEMBER EXTENDING DIAGONALLY IN THE DIRECTION OF TRAVEL, (B) A PLURALITY OF BEAMS CARRIED BY AND DEPENDING FROM SAID BACKBONE IN LONGITUDINALLY SPACED RELATIONSHIP THEREALONG, (C) A PLOW BOTTOM SECURED TO AND CARRIED BY THE LOWER END OF EACH OF SAID BEAMS, (D) A PLURALITY OF TRASH-REMOVING MEMBERS, ONE EACH GENERALLY FORWARDLY OF ONE OF SAID BEAMS, (E) SAID MEMBERS BEING IN THE NATURE OF GENERALLY VERTICALLY DISPOSED ARMS OPERATIVELY SECURED TO SAID FRAME STRUCTURE FOR RECIPROCATING MOVEMENTS IN A COMMON PLANE GENERALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID BACKBONE AND IN OVERLYING RELATIONSHIP ONE EACH TO THE FORWARDLY DISPOSED PORTION OF ONE OF SAID PLOW BOTTOMS, (F) SAID MEMBERS BEING RELATIVELY RIGID AND DEFINING STRAIGHT OPPOSITE SELF-CLEANING EDGE PORTIONS, (G) SAID ARMS BEIGN PIVOTALLY SECURED INTERMEDIATE THEIR ENDS TO SAID FRAME STRUCTURE FOR PIVOTAL SWINGING MOVEMENTS OF THE LOWER ENDS THEREOF, AND POWER MEANS FOR SIMULTANEOUSLY IMPARTING SAID MOVEMENTS TO SAID TRASH-REMOVING MEMBERS, AND INCLUDING: (1) A ROTARY MEMBER, (2) A TIE BAR PIVOTALLY CONNECTED TO EACH OF SAID TRASH-REMOVING MEMBERS IN RADIALLY OFFSET RELATIONSHIP TO THE PIVOTAL CONNECTION OF EACH THEREOF, AND (3) A PITMAN ARM PIVOTALLY SECURED AT ONE END TO SAID ROTARY MEMBER AND OPERATIVELY SECURED AT ITS OPPOSITE END TO SAID TRASH-REMOVING MEMBERS.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |