US3225874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional self starting device for synchronous motor
Assignee: Kingston Products Corp
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Filing: 1963-04-26
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Granted: 1965-12-28
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Lee A Woolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:31
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/118; H02K7/1185; F; F16; F16D; F16D41/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2133; Y10T74/2135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A SELF-STARTING MOTOR HAVING A ROTOR CAPABLE OF STARTING IN EITHER DIRECTION, THE IMPROVEMENT COMPRISING: (A) A PAIR OF INTERENGAGED GEARS, NORMALLY DRIVEN CONINTUALLY IN RESPONSE TO ROTATION OF SAID MOTOR IN A CERTAIN DIRECTION; AND (B) A REVERSING MEMBER FRICTIONALLY CARRIED BY ONE OF SAID GEARS, AND ALSO HAVING A FIRST PORTION, PIVOTED ABOUT THE ROTATIONAL AXIS OF SAID ONE GER AND SLIDABLY ENGAGEABLE WITH THE OTHER OF SAID TEARS WHEN SAID MOTOR RUNS IN SAID CERTAIN DIRECTION, AND HAVING A SECOND PORTION BLOCKINGLY ENGAGEABLE WITH SAID OTHER OF SAID GEARS WHEN SAID MOTOR BEGINS TO RUN IN AN OPPOSITE DIRECTION TO EFFECT ROTATION THEREOF IN SAID CERTAIN DIRECTION.
Claim 2
Dependent Claim
111 words
IN A SELF-STARTING MOTOR HAVING A ROTOR CAPABLE OF STARTING IN EITHER DIRECTION, THE IMPROVEMENT COMPRISING: (A) A PAIR OF INTERENGAGED GEARS, NORMALLY DRIVEN CONINTUALLY IN RESPONSE TO ROTATION OF SAID MOTOR IN A CERTAIN DIRECTION; AND (B) A REVERSING MEMBER FRICTIONALLY CARRIED BY ONE OF SAID GEARS, AND ALSO HAVING A FIRST PORTION, PIVOTED ABOUT THE ROTATIONAL AXIS OF SAID ONE GER AND SLIDABLY ENGAGEABLE WITH THE OTHER OF SAID TEARS WHEN SAID MOTOR RUNS IN SAID CERTAIN DIRECTION, AND HAVING A SECOND PORTION BLOCKINGLY ENGAGEABLE WITH SAID OTHER OF SAID GEARS WHEN SAID MOTOR BEGINS TO RUN IN AN OPPOSITE DIRECTION TO EFFECT ROTATION THEREOF IN SAID CERTAIN DIRECTION.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |