US3145279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed multipole relay
Assignee: Ward Leonard Electric Co
•
Filing: 1961-04-07
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Granted: 1964-08-18
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Expires: 1981-04-07
Abstract
No abstract record available.
Inventors
- 👤 Vradenburgh Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:08
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/64; H01H50/648
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN ENCLOSED ELECTROMAGNETIC RELAY COMPRISING A BASE HAVING AT LEAST TWO PAIRS OF CONDUCTIVE PINS EXTENDING FROM SAID BASE, TWO THIN RESILIENT METAL CONTACT MEMBERS EXTENDING GENERALLY PARALLEL TO ONE ANOTHER IN SPACED RELATION AND SECURED AT ONE END TO A RESPECTIVE PIN OF ONE PAIR AND EXTENDING TO FLEX IN AND OUT OF ENGAGEMENT WITH A RESPECTIVE PIN OF THE OTHER PAIR, AN ELECTROMAGNET HAVING AN ARMATURE HAVING A FREE END POSITIONED BETWEEN SAID CONTACT MEMBERS AND HAVING THE OTHER END PIVOTALLY ATTACHED TO THE ELECTROMAGNET TO MOVE SAID FIRST END PARALLEL TO SAID CONTACT MEMBERS ON ACTUATION OF THE ARMATURE, SAID CONTACT MEMBERS HAVING FACING SLOPED SURFACES AND SAID ARMATURE HAVING A WEDGE-SHAPED PIECE ON THE END OF THE ARMATURE BETWEEN SAID CONTACT MEMBERS AND ENGAGING SAID SURFACES TO ACTUATE SAID CONTACT MEMBERS IN OPPOSITE DIRECTIONS TO VARY THE RELATIONSHIP OF THE ENGAGEMENT OF SAID CONTACT MEMBERS AND THE RESPECTIVE CONDUCTIVE PINS.
Claim 2
Dependent Claim
154 words
AN ENCLOSED ELECTROMAGNETIC RELAY COMPRISING A BASE HAVING AT LEAST TWO PAIRS OF CONDUCTIVE PINS EXTENDING FROM SAID BASE, TWO THIN RESILIENT METAL CONTACT MEMBERS EXTENDING GENERALLY PARALLEL TO ONE ANOTHER IN SPACED RELATION AND SECURED AT ONE END TO A RESPECTIVE PIN OF ONE PAIR AND EXTENDING TO FLEX IN AND OUT OF ENGAGEMENT WITH A RESPECTIVE PIN OF THE OTHER PAIR, AN ELECTROMAGNET HAVING AN ARMATURE HAVING A FREE END POSITIONED BETWEEN SAID CONTACT MEMBERS AND HAVING THE OTHER END PIVOTALLY ATTACHED TO THE ELECTROMAGNET TO MOVE SAID FIRST END PARALLEL TO SAID CONTACT MEMBERS ON ACTUATION OF THE ARMATURE, SAID CONTACT MEMBERS HAVING FACING SLOPED SURFACES AND SAID ARMATURE HAVING A WEDGE-SHAPED PIECE ON THE END OF THE ARMATURE BETWEEN SAID CONTACT MEMBERS AND ENGAGING SAID SURFACES TO ACTUATE SAID CONTACT MEMBERS IN OPPOSITE DIRECTIONS TO VARY THE RELATIONSHIP OF THE ENGAGEMENT OF SAID CONTACT MEMBERS AND THE RESPECTIVE CONDUCTIVE PINS.
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |