US3219781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relay with sliding leaf spring movable contacts
Assignee: RADON CORP
•
Filing: 1963-06-10
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Granted: 1965-11-23
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Expires: 1983-06-10
Abstract
No abstract record available.
Inventors
- 👤 Eugene M Miller
- 👤 Jerry O Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:41
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H50/00; H01H50/16; H01H50/18; H01H50/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A RELAY, A CONTACT PANEL HAVING AT LEAST TWO CONCENTRICALLY ARRANGED RINGS OF CONTACTS ADAPTED TO BE CONNECTED AND DISCONNECTED FROM ASSOCIATED CIRCUIT CONNECTIONS; A PLUNGER MOVABLE LINEARLY AND CENTRALLY OF SAID RINGS OF CONTACTS ALONG THE AXIS OF CONCENTRICITY THEREOF; ELECTROMAGNETIC MEANS FOR RECIPROCATING SAID PLUNGER, AND CONTACT MEANS CARRIED BY SAID PLUNGER CIRCUMAMBIENTLY THEREOF AND COMPRISING FLEXIBLE SPRING FINGERS EACH HAVING A FREE END PORTION PROJECTING TOWARD THE PLANE OF SAID PANEL AT AN ANGLE SUCH THAT ON MOVEMENT OF THE PLUNGER A PREDETERMINED AMOUNT IN A DIRECTION TO DISPLACE SAID CONTACTING FREE END PORTION TOWARD THE PANEL, SAID CONTACTING PORTIONS WILL GLIDE ALONG THE SURFACE OF THE PANEL IN A DIRECTION GENERALLY RADIALLY OUTWARD FROM THE PLUNGER FOR WIPING CONTACT ENGAGEMENT WITH CONTACT MEANS IN SAID RINGS.
Claim 2
Dependent Claim
131 words
IN A RELAY, A CONTACT PANEL HAVING AT LEAST TWO CONCENTRICALLY ARRANGED RINGS OF CONTACTS ADAPTED TO BE CONNECTED AND DISCONNECTED FROM ASSOCIATED CIRCUIT CONNECTIONS; A PLUNGER MOVABLE LINEARLY AND CENTRALLY OF SAID RINGS OF CONTACTS ALONG THE AXIS OF CONCENTRICITY THEREOF; ELECTROMAGNETIC MEANS FOR RECIPROCATING SAID PLUNGER, AND CONTACT MEANS CARRIED BY SAID PLUNGER CIRCUMAMBIENTLY THEREOF AND COMPRISING FLEXIBLE SPRING FINGERS EACH HAVING A FREE END PORTION PROJECTING TOWARD THE PLANE OF SAID PANEL AT AN ANGLE SUCH THAT ON MOVEMENT OF THE PLUNGER A PREDETERMINED AMOUNT IN A DIRECTION TO DISPLACE SAID CONTACTING FREE END PORTION TOWARD THE PANEL, SAID CONTACTING PORTIONS WILL GLIDE ALONG THE SURFACE OF THE PANEL IN A DIRECTION GENERALLY RADIALLY OUTWARD FROM THE PLUNGER FOR WIPING CONTACT ENGAGEMENT WITH CONTACT MEANS IN SAID RINGS.
References Cited (Backward Citations)
US1305970A
Cited
US2162528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |