US3570317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction drive apparatus and control system
Assignee: Excelermatic Inc
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Filing: 1969-01-08
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Granted: 1971-03-16
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Expires: 1989-01-08
Abstract
Abstract TRACTION DRIVE APPARATUS HAVING DRIVING AND DRIVEN ELEMENTS SUCH AS OPPOSING TORIC FACES AND ONE OR MORE ROLLERS FOR TRANSFERRING MOTION BETWEEN THEM AND A CONTROL ASSEMBLY FOR EACH ROLLER. ILLUSTRATED EMBODIMENT INCLUDES A CAM FOLLOWER ON PIVOT SUPPORT FOR ROLLER AND CAM SURFACE, A PISTON CONNECTED TO THE CAM FACE IS SUBJECT TO PRESSURE ON OPPOSITE FACES FOR ENABLING RATIO ADJUSTMENT FOR LOAD EQUALIZATION OR SPEED CHANGE. FLUID CONTROL MEANS FOR REGULATING OPERATION OF THE APPARATUS ARE PROVIDED.
Inventors
- 👤 Charles E Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/664; F16H61/6649; F16H15/00; F16H15/02; F16H15/04; F16H15/06; F16H15/32; F16H15/36; F16H15/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |