Patent US3129607A successfully refreshed from Google Patents.
US3129607A
Expired / Lapsed
US
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Drive unit and control
Assignee: Franklin Electric Co Inc
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Filing: 1960-07-05
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Granted: 1964-04-21
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Edward J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:40
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/018; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437; Y10T74/19614; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
145 words
A DRIVE UNIT COMPRISING A REVERSIBLE ELECTRIC MOTOR HAVING A DRIVE SHAFT, A PLURALITY OF PARALLEL DRIVEN SHAFTS, A PLURALITY OF DRIVE GEARS RESPECTIVELY MOUNTED ON SAID DRIVEN SHAFTS, SAID DRIVE GEARS BEING IN MESHING RELATION TO FORM A GEAR TRAIN AND EACH BEING ROTATIVELY MOUNTED ON ITS ASSOCIATED SHAFT, ONE OF SAID DRIVE GEARS HAVING A DRIVING CONNECTION WITH SAID DRIVE SHAFT, A PLURALITY OF CLUTCH MEANS FOR CONNECTING THE RESPECTIVE DRIVE GEARS TO THEIR ASSOCIATED DRIVEN SHAFTS, EACH CLUTCH MEANS INCLUDING A MEMBER SHIFTABLE BETWEEN A NEUTRAL NON-DRIVING POSITION TO A DRIVE POSITION PROVIDING A DRIVE CONNECTED BETWEEN THE ASSOCIATED DRIVE GEAR AND ITS ASSOCIATED SHAFT, AND A MANUALLY CONTROLLED MEANS FOR SELECTIVELY SHIFTING SAID MEMBERS BETWEEN SAID POSITIONS, SAID MANUALLY CONTROLLED MEANS INCLUDING SWITCH MEANS CONNECTED IN CIRCUIT WITH SAID MOTOR TO CONTROL THE OPERATION AND DIRECTION OF ROTATION OF SAID MOTOR.
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |