US3250927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically operated motor switch
Assignee: Tait Manufacturing Co
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Filing: 1963-07-15
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Granted: 1966-05-10
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Lung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:54
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN AN ELECTRICAL MOTOR HAVING A SHAFT AND CIRCUIT MEANS DEFINING DIFFERENT STARTING AND RUNNING CIRCUITS FOR SAID MOTOR, THE COMBINATION OF OPERATING MEANS NORMALLY BIASED IN A FIRST DIRECTION AND ADAPTED TO BE ROTATED WITH SAID SHAFT AND MOVED AXIALLY IN A SECOND DIRECTION, A FIRST MEMBER MOVABLE IN A ROTARY AXIAL DIRECTION IN RESPONSE TO MOVEMENT OF SAID OPERATING MEANS, MEAN COOPERATING WITH SAID SHAFT FOR CAUSING AXIAL ROTARY MOVEMENT OF SAID OPERATING MEANS IN SAID SECOND DIRECTION, A SWITCH IN SAID CIRCUIT MEANS INCLUDING A SECOND MEMBER MOVABLE IN AN AXIAL ROTARY DIRECTION IN RESPONSE TO MOVEMENT OF SAID FIRST MEMBER, A CONTACT ELEMENT IN SAID SWITCH NORMALLY POSITIONED IN FIRST POSITION AND MOVABLE IN AN AXIAL ROTARY DIRECTION IN RESPONSE TO THE MOVEMENT OF SAID SECOND MEMBER TO A SECOND POSITION FOR ESTABLISHING RESPECTIVELY A STARTING AND RUNNING CIRCUIT FOR SAID MOTOR, AND ONE OF SAID MEMBERS BEING MAGNETIC AND THE OTHER BEING MAGNETICALLY PERMEABLE.
Claim 2
Dependent Claim
159 words
IN AN ELECTRICAL MOTOR HAVING A SHAFT AND CIRCUIT MEANS DEFINING DIFFERENT STARTING AND RUNNING CIRCUITS FOR SAID MOTOR, THE COMBINATION OF OPERATING MEANS NORMALLY BIASED IN A FIRST DIRECTION AND ADAPTED TO BE ROTATED WITH SAID SHAFT AND MOVED AXIALLY IN A SECOND DIRECTION, A FIRST MEMBER MOVABLE IN A ROTARY AXIAL DIRECTION IN RESPONSE TO MOVEMENT OF SAID OPERATING MEANS, MEAN COOPERATING WITH SAID SHAFT FOR CAUSING AXIAL ROTARY MOVEMENT OF SAID OPERATING MEANS IN SAID SECOND DIRECTION, A SWITCH IN SAID CIRCUIT MEANS INCLUDING A SECOND MEMBER MOVABLE IN AN AXIAL ROTARY DIRECTION IN RESPONSE TO MOVEMENT OF SAID FIRST MEMBER, A CONTACT ELEMENT IN SAID SWITCH NORMALLY POSITIONED IN FIRST POSITION AND MOVABLE IN AN AXIAL ROTARY DIRECTION IN RESPONSE TO THE MOVEMENT OF SAID SECOND MEMBER TO A SECOND POSITION FOR ESTABLISHING RESPECTIVELY A STARTING AND RUNNING CIRCUIT FOR SAID MOTOR, AND ONE OF SAID MEMBERS BEING MAGNETIC AND THE OTHER BEING MAGNETICALLY PERMEABLE.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |