US3143899A
Expired / Lapsed
US
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Speed reducer unit or drive
Assignee: SOUTH AFRICAN COUNCIL FOR SECI
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Filing: 1962-01-16
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Granted: 1964-08-11
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Expires: 1982-01-16
Abstract
No abstract record available.
Inventors
- 👤 York Thomas Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:19
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/28; F16H1/2863; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A SPEED REDUCER UNIT WHICH INCLUDES A FIRST GEAR WHEEL MOUNTED TO ROTATE ABOUT AN AXIS; A SECOND GEAR WHEEL COAXIAL WITH SAID FIRST GEAR WHEEL AND HAVING A PITCH CIRCLE DIAMETER SLIGHTLY DIFFERENT FROM THAT OF SAID FIRST GEAR WHEEL AND HAVING TEETH DIFFERING IN NUMBER FROM THAT OF SAID FIRST GEAR WHEEL; ANCHORING MEANS TO ANCHOR SAID SECOND GEAR WHEEL; A CARRIER COAXIAL WITH BOTH SAID GEAR WHEELS AND MOUNTED TO ROTATE ABOUT ITS AXIS; AND AT LEAST ONE SET OF TOOTHED PLANET WHEELS COMPRISING A FIRST PLANET WHEEL CONNECTED TO SAID CARRIER HAVING ITS TEETH SIMULTANEOUSLY IN MESH WITH THE TEETH OF SAID FIRST AND SECOND GEAR WHEELS AND MOUNTED TO ROTATE ABOUT
Claim 2
Dependent Claim
116 words
A SPEED REDUCER UNIT WHICH INCLUDES A FIRST GEAR WHEEL MOUNTED TO ROTATE ABOUT AN AXIS; A SECOND GEAR WHEEL COAXIAL WITH SAID FIRST GEAR WHEEL AND HAVING A PITCH CIRCLE DIAMETER SLIGHTLY DIFFERENT FROM THAT OF SAID FIRST GEAR WHEEL AND HAVING TEETH DIFFERING IN NUMBER FROM THAT OF SAID FIRST GEAR WHEEL; ANCHORING MEANS TO ANCHOR SAID SECOND GEAR WHEEL; A CARRIER COAXIAL WITH BOTH SAID GEAR WHEELS AND MOUNTED TO ROTATE ABOUT ITS AXIS; AND AT LEAST ONE SET OF TOOTHED PLANET WHEELS COMPRISING A FIRST PLANET WHEEL CONNECTED TO SAID CARRIER HAVING ITS TEETH SIMULTANEOUSLY IN MESH WITH THE TEETH OF SAID FIRST AND SECOND GEAR WHEELS AND MOUNTED TO ROTATE ABOUT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |