US3279567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brakes for walking-aid vehicles
Assignee: Individual
•
Filing: 1964-08-31
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Granted: 1966-10-18
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Norbert F Kempel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/04; A61H2003/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A BRAKE ACTUATED BY AN UPRIGHT OF A VEHICLE FRAME IN RELATION TO A WHEEL OF THE VEHICLE, THE WHEEL HAVING AN AXLE; COMPRISING A HOUSING STRADDLING THE WHEEL WITH SECTORAL SIDES CENTERED ON SAID AXLE, A PIVOT BETWEEN THE LOWER END OF THE UPRIGHT AND ONE OF THE ENDS OF SAID SIDES, AND A PROJECTION OF SAID LOWER END LOWERED TO ENGAGE THE TOP OF THE WHEEL AS A BRAKE WHEN THE UPRIGHT IS DEPRESSED, SAID PROJECTION BEING A BAR EXTENDING UNDERNEATH THE HOUSING TO THE REGION OF THE OTHER END OF SAID SIDES, A BOLT CARRIED BY THE BAR AND RISING THROUGH THE HOUSING, A SPRING RISING ABOVE THE LATTER AND COILED AROUND THE BOLT, AND A STOP FOR THE UPPER END OF THE SPRING CARRIED BY THE BOLT, THE LOWERING OF THE BAR COMPRESSING THE SPRING.
Claim 2
Dependent Claim
139 words
A BRAKE ACTUATED BY AN UPRIGHT OF A VEHICLE FRAME IN RELATION TO A WHEEL OF THE VEHICLE, THE WHEEL HAVING AN AXLE; COMPRISING A HOUSING STRADDLING THE WHEEL WITH SECTORAL SIDES CENTERED ON SAID AXLE, A PIVOT BETWEEN THE LOWER END OF THE UPRIGHT AND ONE OF THE ENDS OF SAID SIDES, AND A PROJECTION OF SAID LOWER END LOWERED TO ENGAGE THE TOP OF THE WHEEL AS A BRAKE WHEN THE UPRIGHT IS DEPRESSED, SAID PROJECTION BEING A BAR EXTENDING UNDERNEATH THE HOUSING TO THE REGION OF THE OTHER END OF SAID SIDES, A BOLT CARRIED BY THE BAR AND RISING THROUGH THE HOUSING, A SPRING RISING ABOVE THE LATTER AND COILED AROUND THE BOLT, AND A STOP FOR THE UPPER END OF THE SPRING CARRIED BY THE BOLT, THE LOWERING OF THE BAR COMPRESSING THE SPRING.
References Cited (Backward Citations)
US2942698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |