US3307434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed reducing mechanism
Assignee: Individual
•
Filing: 1964-06-22
•
Granted: 1967-03-07
•
Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 David G Kope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:50
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/72; F16H3/721; F16H1/00; F16H1/28; F16H1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A SPEED REDUCING MECHANISM COMPRISING A DRIVING ELEMENT ADAPTED TO BE ROTATED ABOUT A PREDETERMINED AXIS AND HAVING AN ECCENTRIC CRANK PORTION, A REACTION ELEMENT PROVIDING AN ELONGATED FLEXIBLE SPROCKET CHAIN HAVING A PLURALITY OF SUBSTANTIALLY EQUALLY SPACED CYLINDRICAL MEMBERS DEFINING TOOTH RECEIVING INTERSTICES THEREBETWEEN, A SUPPORT ELEMENT MOUNTING SAID REACTION ELEMENT IN CIRCUMSCRIBING CONCENTRIC RELATION TO SAID PREDETERMINED AXIS, BRAKE MEANS ADAPTED RELEASABLY TO HOLD SAID REACTION ELEMENT AGAINST ROTATION, A TOOTHED DRIVEN ELEMENT JOURNALED ON SAID CRANK PORTION OF THE DRIVING ELEMENT FOR ROTATION IN ECCENTRIC ORBITING RELATION ABOUT SAID PREDE-
Claim 2
Dependent Claim
93 words
A SPEED REDUCING MECHANISM COMPRISING A DRIVING ELEMENT ADAPTED TO BE ROTATED ABOUT A PREDETERMINED AXIS AND HAVING AN ECCENTRIC CRANK PORTION, A REACTION ELEMENT PROVIDING AN ELONGATED FLEXIBLE SPROCKET CHAIN HAVING A PLURALITY OF SUBSTANTIALLY EQUALLY SPACED CYLINDRICAL MEMBERS DEFINING TOOTH RECEIVING INTERSTICES THEREBETWEEN, A SUPPORT ELEMENT MOUNTING SAID REACTION ELEMENT IN CIRCUMSCRIBING CONCENTRIC RELATION TO SAID PREDETERMINED AXIS, BRAKE MEANS ADAPTED RELEASABLY TO HOLD SAID REACTION ELEMENT AGAINST ROTATION, A TOOTHED DRIVEN ELEMENT JOURNALED ON SAID CRANK PORTION OF THE DRIVING ELEMENT FOR ROTATION IN ECCENTRIC ORBITING RELATION ABOUT SAID PREDE-
References Cited (Backward Citations)
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Cited
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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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |