US3184651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-acting electro-magnetic actuator
Assignee: International Business Machines Corp
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Filing: 1961-04-25
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Granted: 1965-05-18
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Chester A Albosta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:08
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/30; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01H51/00; H01H51/02; H01H51/04; H01H51/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
A DOUBLE-ACTING ELECTRO-MAGNETIC ACTUATOR OF THE TYPE COMPRISING AN ARMATURE ROCKABLY MOUNTED ON A PIVOT ADJACENT THE FREE END OF THE INTERMEDIATE LEG OF AN E-TYPE CORE, CHARACTERIZES BY THE PROVISION OF TWO COILS EACH IN SEPARATE CIRCUITS AND EACH BEING THE ONLY COIL WOUND AROUND A DIFFERENT ONE OF THE OUTER LEGS, SAID COILS BEING SO WOUND AND SAID LEGS BEING SO CONFIGURED THAT UPON SELECTIVE ENERGIZATION OF EITHER ONE OF THE COILS THE FLUX INDUCED IN THE ENERGIZED OUTER LEGS SPLITS UP INTO TWO PATHS, THE MAJOR PORTION OF THE FLUX GOING THROUGH A LOW RELUCTANCE PATH INCLUDING THE INTERMEDIATE LEG AND BASE OF THE CORE AND THE ARMATURE TO ATTRACK THE ARMATURE, A LESSER PORTION OF THE FLUX GOING THROUGH A HIGHER RELUCTANCE PATH
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |