US3402375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet actuated reed switch having adjustable magnet pole pieces
Assignee: Motorola Solutions Inc
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Filing: 1966-11-21
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Granted: 1968-09-17
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Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert C Mclaughlin
- 👤 Charles L Shano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:12
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; H01H36/0053
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
MAGNETIC SWITCHING APPARATUS HAVING A REED ELEMENT OPERABLE BY CHANGING MAGNETIC FIELDS INCLUDING IN COMBINATION, MAGNETIC ROTOR MEANS HAVING FIRST AND SECOND OPPOSITELY POLARIZED PORTIONS, FIRST AND SECOND RELATIVELY MOVABLE POLE PIECES MOUNTED TO SAID ROTOR MEANS AND EACH CONTACTING A RESPECTIVE ONE OF SAID OPPOSITELY POLARIZED PORTIONS, A PLURALITY OF SPACED POLES OF LIKE POLARITY INTEGRAL WITH EACH POLE PIECE, SAID POLES ALTERNATELY PASSING IN CLOSE PROXIMITY TO THE REED ELEMENT AND DEFINING A CHANGING MAGNETIC FIELD FOR OPERATING THE SAME, SAID FIRST AND SECOND POLE PLATES BEING MOVABLE RELATIVE TO ONE ANOTHER TO VARY THE SPACING BETWEEN SAID POLES OF OPPOSITE POLARITY THEREBY VARYING THE FREQUENCY OF THE CHANGING MAGNETIC FIELD TO CONTROL THE OPERATION OF THE REED ELEMENT.
References Cited (Backward Citations)
US3284740A
Cited
US3291106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |