Patent US3249824A successfully refreshed from Google Patents.
US3249824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for magnetizing bodies
Assignee: Allen Bradley Co LLC
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Filing: 1963-10-30
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Granted: 1966-05-03
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 James N Pearse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:09
CPC Classifications
H; H01; H01F; H01F13/00; H01H; H01H51/00; H01H51/28; H01H51/282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN APPARATUS FOR MAGNETIZING A BIASING MAGNET FOR SEALED SWITCHING UNITS OF A RELAY, SAID APPARATUS COMPRISING SPACED APART MAGNETIC POLE PIECES, LATERALLY SPACED RELATIVELY MOVABLE CORE MEMBERS DISPOSED BETWEEN SAID POLE PIECES, A WINDING FOR EACH OF SAID CORE MEMBERS, MEANS FOR PROVIDING RELATIVE MOVEMENT BETWEEN SAID CORES, MEANS FOR RETAINING SAID MAGNET RELATIVE TO ONE OF SAID POLE PIECES AND IN THE FLUX PATH CREATED UPON ENERGIZATION OF SAID WINDINGS, WHEREBY SAID CORES MAY BE MOVED TO A RESPECTIVE POSITION DEFINING PRESELECTED, DISCRETE SECTIONS OF SAID MAGNET WHICH SECTIONS, UPON ENERGIZATION OF THE WINDINGS, WILL PROVIDE A MAGNETIZING FLUX PATH THROUGH SAID POLE PIECES, SAID CORES AND SAID SECTION OF SAID MAGNET.
Claim 2
Independent Claim
114 words
AN APPARATUS FOR MAGNETIZING A BIASING MAGNET FOR SEALED SWITCHING UNITS OF A RELAY, SAID APPARATUS COMPRISING SPACED APART MAGNETIC POLE PIECES, LATERALLY SPACED RELATIVELY MOVABLE CORE MEMBERS DISPOSED BETWEEN SAID POLE PIECES, A WINDING FOR EACH OF SAID CORE MEMBERS, MEANS FOR PROVIDING RELATIVE MOVEMENT BETWEEN SAID CORES, MEANS FOR RETAINING SAID MAGNET RELATIVE TO ONE OF SAID POLE PIECES AND IN THE FLUX PATH CREATED UPON ENERGIZATION OF SAID WINDINGS, WHEREBY SAID CORES MAY BE MOVED TO A RESPECTIVE POSITION DEFINING PRESELECTED, DISCRETE SECTIONS OF SAID MAGNET WHICH SECTIONS, UPON ENERGIZATION OF THE WINDINGS, WILL PROVIDE A MAGNETIZING FLUX PATH THROUGH SAID POLE PIECES, SAID CORES AND SAID SECTION OF SAID MAGNET.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |