Patent US3071663A successfully refreshed from Google Patents.
US3071663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
No-tip tractor safety
Assignee: Individual
•
Filing: 1960-05-24
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Granted: 1963-01-01
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Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 William A Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:45
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/08; H; H01; H01H; H01H35/00; H01H35/02; H01H35/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A SAFETY DEVICE FOR PREVENTING THE TILTING OF POWER DRIVEN VEHICLES COMPRISING A TUBE, A BALL FREELY SUPPORTED WITHIN THE TUBE, ONE END OF THE TUBE HAVING OBSTRUCTION MEANS FOR PREVENTING THE BALL FROM ROLLING OUT OF THE TUBE, THE OTHER END OF THE TUBE HAVING A SWITCH WITH A SWITCH ELEMENT THAT IS MOVABLE IN RESPONSE TO AN IMPACT BY THE BALL, THE TUBE BEING BENT INTERMEDIATE ITS ENDS AND HAVING AN ELONGATED STRAIGHT PORTION BETWEEN THE BENT PORTION AND THE OBSTRUCTED END, BRACKET MEANS FOR MOUNTING THE DEVICE TO THE FRAME OF A VEHICLE, THE BRACKET MEANS PROVIDING ADJUSTMENT OF THE POSITION OF THE TUBE SO THAT THE ELONGATED STRAIGHT PORTION EXTENDS DOWNWARDLY FROM THE BENT PORTION AT AN ANGLE TO THE HORIZONTAL SUBSTANTIALLY EQUAL TO THE MAXIMUM ALLOWABLE TILT OF THE VEHICLE, AND THE END HAVING THE SWITCH IS BELOW THE BENT PORTION.
Claim 2
Dependent Claim
146 words
A SAFETY DEVICE FOR PREVENTING THE TILTING OF POWER DRIVEN VEHICLES COMPRISING A TUBE, A BALL FREELY SUPPORTED WITHIN THE TUBE, ONE END OF THE TUBE HAVING OBSTRUCTION MEANS FOR PREVENTING THE BALL FROM ROLLING OUT OF THE TUBE, THE OTHER END OF THE TUBE HAVING A SWITCH WITH A SWITCH ELEMENT THAT IS MOVABLE IN RESPONSE TO AN IMPACT BY THE BALL, THE TUBE BEING BENT INTERMEDIATE ITS ENDS AND HAVING AN ELONGATED STRAIGHT PORTION BETWEEN THE BENT PORTION AND THE OBSTRUCTED END, BRACKET MEANS FOR MOUNTING THE DEVICE TO THE FRAME OF A VEHICLE, THE BRACKET MEANS PROVIDING ADJUSTMENT OF THE POSITION OF THE TUBE SO THAT THE ELONGATED STRAIGHT PORTION EXTENDS DOWNWARDLY FROM THE BENT PORTION AT AN ANGLE TO THE HORIZONTAL SUBSTANTIALLY EQUAL TO THE MAXIMUM ALLOWABLE TILT OF THE VEHICLE, AND THE END HAVING THE SWITCH IS BELOW THE BENT PORTION.
References Cited (Backward Citations)
US1414082A
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US1611219A
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US1837533A
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US2253957A
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US2456799A
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US2692312A
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US2950365A
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |