US3227839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
And gate devices
Assignee: Gordos Corp
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Filing: 1964-01-24
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Granted: 1966-01-04
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Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 John T L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:20
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H67/00; H01H67/22; H01H67/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN ELECTROMAGNETIC AND GATE DEVICE CONSISTING OF A SEALED REED NORMALLY OPEN CONTACT DEVICE HAVING AN ENVELOPE WITH A POLE PIECE SEALED INTO ONE END THEREOF AND AN ARMATURE SEALED INTO THE OTHER END THEREOF, A PLURALITY OF FERROMAGNETIC CORES AFFIXED TO THE EXTERNAL PORTION OF SAID POLE PIECE, AND AFFORDING BOTH A CLOSED ELECTRICAL CIRCUIT AND A CLOSED MAGNETIC CIRCUIT BETWEEN SAID POLE PIECE AND EACH OF SAID CORES, AN INPUT COIL WOUND ABOUT EACH SAID MAGNETIC CORE, SAID INPUT COILS BEING CONSTRUCTED AS SINGLE LAYER SELF-SUPPORTING COILS INTO WHICH SAID CORES MAY BE SLIPPED WHEREBY THE REED UNIT MAY BE REPLACED WITHOUT DISTURBING THE WIRING CONNECTIONS TO SAID INPUT COILS.
Claim 2
Dependent Claim
112 words
AN ELECTROMAGNETIC AND GATE DEVICE CONSISTING OF A SEALED REED NORMALLY OPEN CONTACT DEVICE HAVING AN ENVELOPE WITH A POLE PIECE SEALED INTO ONE END THEREOF AND AN ARMATURE SEALED INTO THE OTHER END THEREOF, A PLURALITY OF FERROMAGNETIC CORES AFFIXED TO THE EXTERNAL PORTION OF SAID POLE PIECE, AND AFFORDING BOTH A CLOSED ELECTRICAL CIRCUIT AND A CLOSED MAGNETIC CIRCUIT BETWEEN SAID POLE PIECE AND EACH OF SAID CORES, AN INPUT COIL WOUND ABOUT EACH SAID MAGNETIC CORE, SAID INPUT COILS BEING CONSTRUCTED AS SINGLE LAYER SELF-SUPPORTING COILS INTO WHICH SAID CORES MAY BE SLIPPED WHEREBY THE REED UNIT MAY BE REPLACED WITHOUT DISTURBING THE WIRING CONNECTIONS TO SAID INPUT COILS.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |