Patent US5455816A successfully refreshed from Google Patents.
Patent US3177734A successfully refreshed from Google Patents.
US3177734A
Expired / Lapsed
US
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Variable-speed transmissions utilizing belts and pulleys
Assignee: CIDMA
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Filing: 1963-07-29
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Granted: 1965-04-13
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Rackelboom Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:44
CPC Classifications
F; F16; F16H; F16H9/00; F16H9/02; F16H9/04; F16H9/12; F16H63/00; F16H63/02; F16H63/04; F16H63/06; F16H63/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A VARIABLE-SPEED TRANSMISSION COMPRISING A BELT AND PULLEYS, INCLUDING ONE SHAFT, AT LEAST ONE GROOVE PULLEY MOUNTED ON SAID SHAFT AND FORMED OF TWO FLANGES, ONE OF WHICH IS STATIONARY WITH RESPECT TO SAID SHAFT AND THE OTHER IS MOVABLE WITH RESPECT THERETO, SPRING MEANS TO CONTINUOUSLY URGE SAID MOVABLE FLANGE TOWARDS SAID STATIONARY FLANGE, AND A CONNECTING MEMBER CONNECTING BOTH FLANGES, SAID MEMBER BEING SYMMETRICALLY DISPOSED AROUND AN AXIS OF SYMMETRY ALIGNED WITH SAID SHAFT, AND BEING ADAPTED TO DEFORM IN PARALLELISM WITH ITS AXIS OF SYMMETRY BUT TO SUSTAIN ONLY NEGLIGIBLE DEFORMATION IN RESPONSE TO TANGENTIAL FORCES WHEREBY SAID CONNECTION MEMBER ITSELF TRANSMITS THE ROTATION OF ONE OF SAID FLANGES TO THE OTHER.
Claim 2
Dependent Claim
115 words
A VARIABLE-SPEED TRANSMISSION COMPRISING A BELT AND PULLEYS, INCLUDING ONE SHAFT, AT LEAST ONE GROOVE PULLEY MOUNTED ON SAID SHAFT AND FORMED OF TWO FLANGES, ONE OF WHICH IS STATIONARY WITH RESPECT TO SAID SHAFT AND THE OTHER IS MOVABLE WITH RESPECT THERETO, SPRING MEANS TO CONTINUOUSLY URGE SAID MOVABLE FLANGE TOWARDS SAID STATIONARY FLANGE, AND A CONNECTING MEMBER CONNECTING BOTH FLANGES, SAID MEMBER BEING SYMMETRICALLY DISPOSED AROUND AN AXIS OF SYMMETRY ALIGNED WITH SAID SHAFT, AND BEING ADAPTED TO DEFORM IN PARALLELISM WITH ITS AXIS OF SYMMETRY BUT TO SUSTAIN ONLY NEGLIGIBLE DEFORMATION IN RESPONSE TO TANGENTIAL FORCES WHEREBY SAID CONNECTION MEMBER ITSELF TRANSMITS THE ROTATION OF ONE OF SAID FLANGES TO THE OTHER.
References Cited (Backward Citations)
US1416745A
Cited
US2543967A
Cited
US2463031A
Cited
FR921462A
Cited
US2893254A
Cited
US2973655A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |