US3284831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Runway sweeper
Assignee: Sicard Inc
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Filing: 1965-02-01
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Granted: 1966-11-15
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Gregory J Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:17
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0809; E01H1/0818; A; A46; A46B; A46B13/00; A46B13/001; E01H1/02; E01H1/05; E01H1/056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
IN A RUNWAY SWEEPER, FOR ROAD SWEEPING, HAVING A ROTARY BRUSH ASSEMBLY INCLUDING A ROTARY BRUSH AND A GENERALLY HORIZONTAL RIGID MEMBER FIXED TO SAID BRUSH LONGITUDINALLY THEREOF, SAID ASSEMBLY TO BE MOUNTED ON A VEHICLE FRAME BY MEANS OF A SUSPENSION ADAPTED TO ALLOW VERTICAL MOVEMENT OF SAID BRUSH, INDEPENDENTLY OF SAID FRAME, CAUSED BY IMPERFECTIONS ON THE ROAD TO BE SWEPT, THE INVENTION IN THE FOLLOWING NEW COMBINATION COMPRISING: (A) AN UPPER ARM ARTICULATED AT ONE END TO SAID FRAME AND MOUNTED AT THE OTHER END ON SAID RIGID MEMBER GENERALLY CENTRALLY THEREOF TO PIVOT ABOUT AN AXIS PARALLEL TO SAID MEMBER; (B) A LOWER ARM ARTICULATED AT ONE END TO SAID FRAME, BELOW THE ARTICULATION OF SAID UPPER ARM TO SAID FRAME, AND MOUNTED AT THE OTHER END ON SAID RIGID MEMBER BELOW THE PIVOT CONNECTION OF SAID UPPER ARM TO SAID MEMBER TO PIVOT ABOUT AN AXIS PARALLEL TO SAID MEMBER AND (C) MEANS TO APPLY A LATERAL THRUST ON EACH SIDE OF SAID LOWER ARM, INTERMEDIATE THE ENDS THEREOF, TO CAUSE SWINGING OF SAID LOWER ARM AND BRUSH ASSEMBLY ABOUT AN AXIS THROUGH SAID ARTICULATIONS OF SAID ARMS TO SAID FRAME.
Claim 2
Dependent Claim
196 words
IN A RUNWAY SWEEPER, FOR ROAD SWEEPING, HAVING A ROTARY BRUSH ASSEMBLY INCLUDING A ROTARY BRUSH AND A GENERALLY HORIZONTAL RIGID MEMBER FIXED TO SAID BRUSH LONGITUDINALLY THEREOF, SAID ASSEMBLY TO BE MOUNTED ON A VEHICLE FRAME BY MEANS OF A SUSPENSION ADAPTED TO ALLOW VERTICAL MOVEMENT OF SAID BRUSH, INDEPENDENTLY OF SAID FRAME, CAUSED BY IMPERFECTIONS ON THE ROAD TO BE SWEPT, THE INVENTION IN THE FOLLOWING NEW COMBINATION COMPRISING: (A) AN UPPER ARM ARTICULATED AT ONE END TO SAID FRAME AND MOUNTED AT THE OTHER END ON SAID RIGID MEMBER GENERALLY CENTRALLY THEREOF TO PIVOT ABOUT AN AXIS PARALLEL TO SAID MEMBER; (B) A LOWER ARM ARTICULATED AT ONE END TO SAID FRAME, BELOW THE ARTICULATION OF SAID UPPER ARM TO SAID FRAME, AND MOUNTED AT THE OTHER END ON SAID RIGID MEMBER BELOW THE PIVOT CONNECTION OF SAID UPPER ARM TO SAID MEMBER TO PIVOT ABOUT AN AXIS PARALLEL TO SAID MEMBER AND (C) MEANS TO APPLY A LATERAL THRUST ON EACH SIDE OF SAID LOWER ARM, INTERMEDIATE THE ENDS THEREOF, TO CAUSE SWINGING OF SAID LOWER ARM AND BRUSH ASSEMBLY ABOUT AN AXIS THROUGH SAID ARTICULATIONS OF SAID ARMS TO SAID FRAME.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |