US3130284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relay
Assignee: General Electric Co
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Filing: 1961-07-03
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Granted: 1964-04-21
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Lee O Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:59
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
AN ELECTROMAGNETIC RELAY COMPRISING AN INSULATING HOUSING, AT LEAST ONE RELATIVELY MOVABLE CONTACT MEANS SUPPORTED IN SAID HOUSING, AN AXIALLY MOVABLE SLEEVE MOUNTED IN SAID HOUSING AND MOVABLE BETWEEN TWO POSITIONS TO ACTUATE SAID CONTACTS, A RECIPROCABLE MAGNETIC ARMATURE SLIDABLY MOUNTED UPON SAID SLEEVE, AN ELECTRICAL COIL ENGAGED WITH AND HELD BY SAID HOUSING TO ENERGIZE SAID ARMATURE, A CAP MEMBER FASTENED AROUND SAID SLEEVE, AND A SPRING ENGAGED BETWEEN THE ARMATURE AND THE CAP MEMBER FOR RESILIENTLY TRANSMITTING THE RECIPROCATING MOTION OF SAID ARMATURE TO SAID SLEEVE TO MOVE THE SLEEVE BETWEEN SAID POSITIONS TO ACTUATE SAID CONTACTS, SAID SLEEVE BEING FORMED OF A METALLIC MATERIAL HAVING A RELATIVELY HIGH MELTING POINT AND HAVING AN AXIALLY EXTENSIVE SPLIT THEREIN TO REDUCE EDDY CURRENT FLOW AND LOWER THE OPERATING TEMPERATURE OF SAID COIL, SAID CAP MEMBER BEING FASTENED TO SAID SLEEVE BY CONSTRICTION OF SAID SPLIT TO PROVIDE A SIMPLIFIED ADJUSTMENT THEREBETWEEN.
Claim 2
Dependent Claim
152 words
AN ELECTROMAGNETIC RELAY COMPRISING AN INSULATING HOUSING, AT LEAST ONE RELATIVELY MOVABLE CONTACT MEANS SUPPORTED IN SAID HOUSING, AN AXIALLY MOVABLE SLEEVE MOUNTED IN SAID HOUSING AND MOVABLE BETWEEN TWO POSITIONS TO ACTUATE SAID CONTACTS, A RECIPROCABLE MAGNETIC ARMATURE SLIDABLY MOUNTED UPON SAID SLEEVE, AN ELECTRICAL COIL ENGAGED WITH AND HELD BY SAID HOUSING TO ENERGIZE SAID ARMATURE, A CAP MEMBER FASTENED AROUND SAID SLEEVE, AND A SPRING ENGAGED BETWEEN THE ARMATURE AND THE CAP MEMBER FOR RESILIENTLY TRANSMITTING THE RECIPROCATING MOTION OF SAID ARMATURE TO SAID SLEEVE TO MOVE THE SLEEVE BETWEEN SAID POSITIONS TO ACTUATE SAID CONTACTS, SAID SLEEVE BEING FORMED OF A METALLIC MATERIAL HAVING A RELATIVELY HIGH MELTING POINT AND HAVING AN AXIALLY EXTENSIVE SPLIT THEREIN TO REDUCE EDDY CURRENT FLOW AND LOWER THE OPERATING TEMPERATURE OF SAID COIL, SAID CAP MEMBER BEING FASTENED TO SAID SLEEVE BY CONSTRICTION OF SAID SPLIT TO PROVIDE A SIMPLIFIED ADJUSTMENT THEREBETWEEN.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |