US3623323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed synchronizing apparatus
Assignee: ARROW MACHINING SERVICE
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Filing: 1969-11-28
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Granted: 1971-11-30
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Expires: 1989-11-28
Abstract
Abstract TWO WORM SHAFTS, EACH HAVING A DRIVING CONNECTING TO AN ENGINE, ARE MOUNTED PARALLEL TO A SHIFT ROD WHICH IS MOVABLE TO CHANGE THE SPEED OF THE SLEEVE ENGINE. A ROTATABLE MEMBER IS MOUNTED ON THE SHIFT ROD AND HAS WORM GEARS AT EITHER END ENGAGED WITH A RESPECTIVE WORM SHAFT. A FRICTION CLUCTH IS ASSOCIATED WITH EACH OF THE WORM SHAFTS TO PREVENT IMPARTING A MOTION TO THE ROTAT- ABLE MEMBER WHEN THE SHIFT ROD IS HELD AGAINST MOVEMENT. A SOLENOID-OPERATED LOCK MECHANISM IS SELECTIVELY OPERABLE TO LOCK THE SHIFT ROD AGAINST MOVEMENT AND RENDER THE APPARATUS INOPERATIVE.
Inventors
- 👤 Robert L Fritz
- 👤 Fred W Newburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:09
CPC Classifications
F; F02; F02D; F02D25/00; F02D25/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18792
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |