US3284094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable axle arrangement for vehicle trailer
Assignee: Individual
•
Filing: 1964-04-03
•
Granted: 1966-11-08
•
Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Grace Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:44
CPC Classifications
B; B62; B62D; B62D13/00; B62D13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A VEHICLE TRAILER THE COMBINATION OF A FRAME, AN AXLE FIXED ON THE FRAME AGAINST TURNING MOVEMENT, A PAIR OF AXLES SPACED LONGITUDINALLY OF THE TRAILER FRAME AND EACH SPACED FROM THE FIXED AXLE, WHEELS ON THE OPPOSITE ENDS OF EACH OF SAID AXLES, EACH AXLE IN SAID PAIR BEING PIVOTALLY MOUNTED ON THE TRAILER FRAME FOR TURNING MOVEMENT ABOUT A VERTICAL AXIS TO PROVIDE TWO PAIR OF STEERABLE WHEELS, MEANS COMPRISING A MECHANICAL LINKAGE MECHANISM INTERCONNECTING SAID STEERING AXLES FOR TURNING MOVEMENT IN UNISON, SAID LINKAGE MECHANISM INCLUDING MEANS FOR OPPOSING THE TENDENCY FOR SAID AXLES TO TURN FREELY IN RESPONSE TO LATERAL FORCES EXERTED ON THE WHEELS OF THE PIVOTED AXLES BY REASON OF THEIR TRACTION WITH THE ROAD SURFACE.
Claim 2
Dependent Claim
123 words
IN A VEHICLE TRAILER THE COMBINATION OF A FRAME, AN AXLE FIXED ON THE FRAME AGAINST TURNING MOVEMENT, A PAIR OF AXLES SPACED LONGITUDINALLY OF THE TRAILER FRAME AND EACH SPACED FROM THE FIXED AXLE, WHEELS ON THE OPPOSITE ENDS OF EACH OF SAID AXLES, EACH AXLE IN SAID PAIR BEING PIVOTALLY MOUNTED ON THE TRAILER FRAME FOR TURNING MOVEMENT ABOUT A VERTICAL AXIS TO PROVIDE TWO PAIR OF STEERABLE WHEELS, MEANS COMPRISING A MECHANICAL LINKAGE MECHANISM INTERCONNECTING SAID STEERING AXLES FOR TURNING MOVEMENT IN UNISON, SAID LINKAGE MECHANISM INCLUDING MEANS FOR OPPOSING THE TENDENCY FOR SAID AXLES TO TURN FREELY IN RESPONSE TO LATERAL FORCES EXERTED ON THE WHEELS OF THE PIVOTED AXLES BY REASON OF THEIR TRACTION WITH THE ROAD SURFACE.
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |