US3115589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic stepping motor
Assignee: CTS Corp
•
Filing: 1961-10-23
•
Granted: 1963-12-24
•
Expires: 1981-10-23
Abstract
No abstract record available.
Inventors
- 👤 Stanley O Bender
- 👤 Wayne A Barden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:05
CPC Classifications
H; H02; H02K; H02K37/00; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555; Y10T74/1558; Y10T74/1577; Y10T74/1581; Y10T74/1582; Y10T74/21; Y10T74/2133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
AN ELECTROMAGNETIC STEPPER FOR ADJUSTING A ROTATABLY ADJUSTABLE CONTROL COMPRISING: TWO ELECTROMAGNETS; A PIVOTALLY MOUNTED ARMATURE ASSOCIATED WITH EACH ELECTROMAGNET; STOP MEANS ARRANGED TO LIMIT THE DISTANCE EACH ARMATURE CAN PIVOT AWAY FROM ITS ASSOCIATED ELECTROMAGNET; FIRST RESILIENT MEANS BIASING EACH ARMATURE TOWARD THE STOP MEANS SO THAT EACH ARMATURE CAN BE CAUSED TO OSCILLATE BETWEEN THE STOP MEANS AND ITS ASSOCIATED ELECTROMAGNET BY ALTERNATELY ENERGIZING AND DE-ENERGIZING THE ELECTROMAGNET; AN ADJUSTING MEMBER FOR THE CONTROL; A CIRCULAR MEMBER EQUIPPED WITH TEETH ATTACHED TO THE ADJUSTING MEMBER; AND TOOTH ENGAGING MEANS CARRIED BY EACH ARMATURE SO THAT BY ENERGIZING ONE ELECTROMAGNET AND THEREBY CAUSING ITS ASSOCIATED ARMATURE TO PIVOT AWAY FROM THE STOP MEANS, THE TOOTH ENGAGING MEANS CARRIED BY THE ARMATURE WILL ENGAGE THE TEETH ON THE CIRCULAR MEMBER CAUSING IT TO ROTATE AN INCREMENTAL DISTANCE BEFORE THE ARMATURE REACHES THE END OF ITS TRAVEL TOWARD THE ELECTROMAGNET; SAID STEPPER BEING FURTHER CHARACTERIZED BY THE FACT THAT THE ARMATURES ARE ARRANGED ON OPPOSITE SIDES OF THE CIRCULAR MEMBER SO THAT EACH ARMATURE ROTATES THE CIRCULAR MEMBER IN OPPOSITE DIRECTIONS.
Claim 2
Dependent Claim
180 words
AN ELECTROMAGNETIC STEPPER FOR ADJUSTING A ROTATABLY ADJUSTABLE CONTROL COMPRISING: TWO ELECTROMAGNETS; A PIVOTALLY MOUNTED ARMATURE ASSOCIATED WITH EACH ELECTROMAGNET; STOP MEANS ARRANGED TO LIMIT THE DISTANCE EACH ARMATURE CAN PIVOT AWAY FROM ITS ASSOCIATED ELECTROMAGNET; FIRST RESILIENT MEANS BIASING EACH ARMATURE TOWARD THE STOP MEANS SO THAT EACH ARMATURE CAN BE CAUSED TO OSCILLATE BETWEEN THE STOP MEANS AND ITS ASSOCIATED ELECTROMAGNET BY ALTERNATELY ENERGIZING AND DE-ENERGIZING THE ELECTROMAGNET; AN ADJUSTING MEMBER FOR THE CONTROL; A CIRCULAR MEMBER EQUIPPED WITH TEETH ATTACHED TO THE ADJUSTING MEMBER; AND TOOTH ENGAGING MEANS CARRIED BY EACH ARMATURE SO THAT BY ENERGIZING ONE ELECTROMAGNET AND THEREBY CAUSING ITS ASSOCIATED ARMATURE TO PIVOT AWAY FROM THE STOP MEANS, THE TOOTH ENGAGING MEANS CARRIED BY THE ARMATURE WILL ENGAGE THE TEETH ON THE CIRCULAR MEMBER CAUSING IT TO ROTATE AN INCREMENTAL DISTANCE BEFORE THE ARMATURE REACHES THE END OF ITS TRAVEL TOWARD THE ELECTROMAGNET; SAID STEPPER BEING FURTHER CHARACTERIZED BY THE FACT THAT THE ARMATURES ARE ARRANGED ON OPPOSITE SIDES OF THE CIRCULAR MEMBER SO THAT EACH ARMATURE ROTATES THE CIRCULAR MEMBER IN OPPOSITE DIRECTIONS.
References Cited (Backward Citations)
US2990723A
Cited
US2993382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |