US3092397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle levelizing mechanism
Assignee: MATHER SPRING CO
•
Filing: 1959-09-11
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Granted: 1963-06-04
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Expires: 1979-09-11
Abstract
No abstract record available.
Inventors
- 👤 Paul W Dullabaun
- 👤 Richard E Hanslip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:48
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/023; Y; Y10; Y10S; Y10S280/00; Y10S280/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A LEVELIZING DEVICE FOR A VEHICLE HAVING A LEAF SPRING SUSPENSION BETWEEN A WHEEL AND A FRAME OF THE VEHICLE, THE IMPROVEMENT COMPRISING: MOVABLE MEANS FOR ENGAGING ONE END OF SAID LEAF SPRING, GUIDE MEANS FOR SAID MOVABLE MEANS HAVING A FIXED DOWNWARD AND INWARD GUIDE PATH RELATIVE TO SAID FRAME AND NORMALLY OBLIQUELY TRANVERSE OF THE LINE BETWEEN THE REACTION POINTS AT THE ENDS OF SAID LEAF SPRING SO THAT MOVEMENT OF SAID MOVABLE MEANS ALONG SAID PATH VARIES THE DISTRIBUTION OF FORCE ON SAID LEAF SPRING END AND SIMULTANEOUSLY CHANGES THE EFFECTIVE LENGTH OF AND THE STRESS IN SAID LEAF SPRING, WHEREBY DECREASING THE EFFECTIVE LENGTH OF SAID SPRING INCREASES THE REALATIVE DISTANCE BETWEEN SAID WHEEL AND SAID FRAME AND VICE VERSA, RECIPROCATING MEANS FOR MOVING SAID MOVABLE MEANS ALONG SAID GUIDE MEANS, AND MEANS RESPONSIVE TO A CHANGE IN LOAD ON SAID VEHICLE TO A ACUATE SAID MEANS FOR MOVING SAID MOVABLE MEANS.
Claim 2
Dependent Claim
156 words
A LEVELIZING DEVICE FOR A VEHICLE HAVING A LEAF SPRING SUSPENSION BETWEEN A WHEEL AND A FRAME OF THE VEHICLE, THE IMPROVEMENT COMPRISING: MOVABLE MEANS FOR ENGAGING ONE END OF SAID LEAF SPRING, GUIDE MEANS FOR SAID MOVABLE MEANS HAVING A FIXED DOWNWARD AND INWARD GUIDE PATH RELATIVE TO SAID FRAME AND NORMALLY OBLIQUELY TRANVERSE OF THE LINE BETWEEN THE REACTION POINTS AT THE ENDS OF SAID LEAF SPRING SO THAT MOVEMENT OF SAID MOVABLE MEANS ALONG SAID PATH VARIES THE DISTRIBUTION OF FORCE ON SAID LEAF SPRING END AND SIMULTANEOUSLY CHANGES THE EFFECTIVE LENGTH OF AND THE STRESS IN SAID LEAF SPRING, WHEREBY DECREASING THE EFFECTIVE LENGTH OF SAID SPRING INCREASES THE REALATIVE DISTANCE BETWEEN SAID WHEEL AND SAID FRAME AND VICE VERSA, RECIPROCATING MEANS FOR MOVING SAID MOVABLE MEANS ALONG SAID GUIDE MEANS, AND MEANS RESPONSIVE TO A CHANGE IN LOAD ON SAID VEHICLE TO A ACUATE SAID MEANS FOR MOVING SAID MOVABLE MEANS.
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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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |