US4032739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting structure for leaf spring contact assembly
Assignee: Danfoss AS
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Filing: 1975-10-09
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Granted: 1977-06-28
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Expires: 1995-10-09
Abstract
Abstract The invention relates to an electrical type contact switch assembly. The assembly includes an insulated contact carrier having a U-shaped portion with spaced apart walls. A slot for receiving a leaf spring extends transversely through the walls. Mutually facing depressions formed in the walls straddle the slot and have oppositely inclined surfaces. A leaf spring disposed in the slot has a resiliently hinged flap extending at an acute angle relative to the plane of the spring. The flap is in resilient biasing engagement with the inclined surfaces of the contact carrier. The flap is of trapezium shape and is an integral part of the spring.
Inventors
- 👤 Holger Nicolaisen
- 👤 Finn Schnoor Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:57
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/18; F16F1/26; H; H01; H01H; H01H11/00; H01H11/04; H01H11/06; H01H2011/062; H01H2011/067; Y; Y10; Y10S; Y10S200/00; Y10S200/46
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
A contact switch assembly comprising an insulated contact carrier having a U-shaped portion with spaced apart walls, a slot extending transversely through said walls, mutually facing recesses formed in said walls on at least one side of said slot, said recesses having oppositely inclined surfaces, a leaf spring contact in said slot having an attached resiliently hinged flap extending at an acute angle relative to the plane of said leaf spring contact, said flap having sharp corners at opposite ends thereof which dig into said inclined surfaces of said recesses to hold said flap in resilient biasing engagement with said inclined surfaces of said carrier to hold said leaf spring contact firmly in an inserted position.
Claim 2
Dependent Claim
116 words
A contact switch assembly comprising an insulated contact carrier having a U-shaped portion with spaced apart walls, a slot extending transversely through said walls, mutually facing recesses formed in said walls on at least one side of said slot, said recesses having oppositely inclined surfaces, a leaf spring contact in said slot having an attached resiliently hinged flap extending at an acute angle relative to the plane of said leaf spring contact, said flap having sharp corners at opposite ends thereof which dig into said inclined surfaces of said recesses to hold said flap in resilient biasing engagement with said inclined surfaces of said carrier to hold said leaf spring contact firmly in an inserted position.
Claim 3
Dependent Claim
21 words
A switch assembly according to claim 1 wherein said flap has three sides and is an integral part of said spring.
Claim 4
Dependent Claim
14 words
A switch assembly according to claim 2 wherein said flap is of trapezium shape.
References Cited (Backward Citations)
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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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |