Patent US3211248A successfully refreshed from Google Patents.
US3211248A
Expired / Lapsed
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Steering and traction unit
Assignee: Yale and Towne Inc
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Filing: 1964-01-21
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Granted: 1965-10-12
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Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 George F Quayle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:31
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/043; B60K1/00; B60T; B60T1/00; B60T1/02; B60T1/06; B60T1/062; B62; B62B; B62B3/00; B62B3/04; B62B3/06; B62B3/0612; B60L; B60L2200/00; B60L2200/40; B60L2200/42; B62B2301/00; B62B3/0625; B62B5/00; B62B5/0026; B62B5/0033; B62B5/0053; Y; Y02; Y02P; Y02P90/00; Y02P90/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN AN INDUSTRIAL TRUCK, A STEERING AND TRACTION UNIT MOUNTED FOR STEERING ROTATION BODILY RELATIVELY TO SAID TRUCK, SAID STEERING AND TRACTION UNIT INCLUDING AN ELECTRIC MOTOR HAVING A DRIVE SHAFT, A TRACTION WHEEL, AND A TRANSMISSION HOUSING HAVING MOUNTED THEREIN A GEAR TRANSMISSION INTERCONNECTING THE DRIVE SHAFT OF SAID ELECTRIC MOTOR AND THE TRACTION WHEEL WHEREBY SAID TRACTION WHEEL IS DRIVEN BY SAID ELECTRIC MOTOR, A V-GROOVE PULLEY MEMBER CONNECTED TO SAID DRIVE SHAFT OF SAID ELECTRIC MOTOR AND MOUNTED WITHIN SAID TRANSMISSION HOUSING FOR ROTATION BY SAID ELECTRIC MOTOR, MEANS ASSOCIATED WITH SAID VGROOVE PULLEY MEMBER FOR CIRCULATING COOLING AIR THROUGH SAID MOTOR, A V-SHAPED BRAKING ELEMENT, MEANS MOUNTING SAID BRAKING ELEMENT WITHIN SAID HOUSING FOR MOVEMENT INTO THE V-GROOVE OF SAID PULLEY MEMBER, MEANS MOUNTED ON SAID HOUSING FOR MOVING SAID V-SHAPED BRAKING ELEMENT INTO WEDGING ENGAGEMENT WITH SAID V-GROOVE OF SAID PULLEY MEMBER TO APPLY A BRAKING FORCE TO SAID PULLEY MEMBER AND THEREFORE TO SAID ELECTRIC MOTOR AND TRACTION WHEEL, AND MEANS FOR MOVING SAID V-SHAPED BRAKING ELEMENT OUT OF WEDGING ENGAGEMENT WITH SAID V-GROOVE TO RELIEVE THE BRAKING FORCE.
Claim 2
Dependent Claim
185 words
IN AN INDUSTRIAL TRUCK, A STEERING AND TRACTION UNIT MOUNTED FOR STEERING ROTATION BODILY RELATIVELY TO SAID TRUCK, SAID STEERING AND TRACTION UNIT INCLUDING AN ELECTRIC MOTOR HAVING A DRIVE SHAFT, A TRACTION WHEEL, AND A TRANSMISSION HOUSING HAVING MOUNTED THEREIN A GEAR TRANSMISSION INTERCONNECTING THE DRIVE SHAFT OF SAID ELECTRIC MOTOR AND THE TRACTION WHEEL WHEREBY SAID TRACTION WHEEL IS DRIVEN BY SAID ELECTRIC MOTOR, A V-GROOVE PULLEY MEMBER CONNECTED TO SAID DRIVE SHAFT OF SAID ELECTRIC MOTOR AND MOUNTED WITHIN SAID TRANSMISSION HOUSING FOR ROTATION BY SAID ELECTRIC MOTOR, MEANS ASSOCIATED WITH SAID VGROOVE PULLEY MEMBER FOR CIRCULATING COOLING AIR THROUGH SAID MOTOR, A V-SHAPED BRAKING ELEMENT, MEANS MOUNTING SAID BRAKING ELEMENT WITHIN SAID HOUSING FOR MOVEMENT INTO THE V-GROOVE OF SAID PULLEY MEMBER, MEANS MOUNTED ON SAID HOUSING FOR MOVING SAID V-SHAPED BRAKING ELEMENT INTO WEDGING ENGAGEMENT WITH SAID V-GROOVE OF SAID PULLEY MEMBER TO APPLY A BRAKING FORCE TO SAID PULLEY MEMBER AND THEREFORE TO SAID ELECTRIC MOTOR AND TRACTION WHEEL, AND MEANS FOR MOVING SAID V-SHAPED BRAKING ELEMENT OUT OF WEDGING ENGAGEMENT WITH SAID V-GROOVE TO RELIEVE THE BRAKING FORCE.
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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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |