Patent US3136930A successfully refreshed from Google Patents.
US3136930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary solenoid
Assignee: Illinois Tool Works Inc
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Filing: 1960-09-12
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Granted: 1964-06-09
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Straub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:53
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01F7/145; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN ELECTROMAGNETICALLY OPERATED ROTARY ACTUATOR COMPRISING AN ELECTROMAGNET, AN ARMATURE MOUNTED FOR AXIAL MOVEMENT TOWARD SAID ELECTROMAGNET AND RESTRAINED AGAINST ROTARY MOVEMENT RELATIVE THERETO, A MEMBER MOUNTED FOR ROTARY MOVEMENT RELATIVE TO SAID ARMATURE, AND ROTATABLE MEANS OPERABLE TO IMPART ROTARY MOVEMENT TO SAID MEMBER IN RESPONSE TO AXIAL MOVEMENT OF SAID ARMATURE TOWARD SAID ELECTROMAGNET, MEANS TO PREVENT ROTARY MOVEMENT OF SAID MEMBER WHEN SAID ARMATURE IS SUBJECTED TO EXTERNAL GRAVITATIONAL AND ACCELERATION FORCES BUT SAID LAST MENTIONED MEANS BEING ADAPTED TO PERMIT ROTARY MOVEMENT DURING MOVEMENT OF SAID ARMATURE BROUGHT ABOUT BY ELECTROMAGNETIC FORCES.
Claim 2
Dependent Claim
96 words
AN ELECTROMAGNETICALLY OPERATED ROTARY ACTUATOR COMPRISING AN ELECTROMAGNET, AN ARMATURE MOUNTED FOR AXIAL MOVEMENT TOWARD SAID ELECTROMAGNET AND RESTRAINED AGAINST ROTARY MOVEMENT RELATIVE THERETO, A MEMBER MOUNTED FOR ROTARY MOVEMENT RELATIVE TO SAID ARMATURE, AND ROTATABLE MEANS OPERABLE TO IMPART ROTARY MOVEMENT TO SAID MEMBER IN RESPONSE TO AXIAL MOVEMENT OF SAID ARMATURE TOWARD SAID ELECTROMAGNET, MEANS TO PREVENT ROTARY MOVEMENT OF SAID MEMBER WHEN SAID ARMATURE IS SUBJECTED TO EXTERNAL GRAVITATIONAL AND ACCELERATION FORCES BUT SAID LAST MENTIONED MEANS BEING ADAPTED TO PERMIT ROTARY MOVEMENT DURING MOVEMENT OF SAID ARMATURE BROUGHT ABOUT BY ELECTROMAGNETIC FORCES.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |