Patent US3567891A successfully refreshed from Google Patents.
US3567891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact assembly for sliding switches
Assignee: Preh GmbH
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Filing: 1969-08-18
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Granted: 1971-03-02
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Expires: 1989-08-18
Abstract
Abstract A contact assembly for a sliding switch having a contact bridge made in one piece and disposed in a chamber in a slide for cooperation with relatively fixed contacts spaced one from another in the direction of sliding movement of the contact bridge. The contact bridge having a substantially rectangular frame with the short sides formed integrally with inwardly directed convex contact arms and the long sides provided midway with recesses engaged by projections of the chamber walls. The middle regions of the long sides rest on ledges provided in and at opposite sides of the chamber.
Inventors
- 👤 Rudolf Hinkelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:18
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H15/06; H01H11/00; H01H11/04; H01H11/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
In a contact assembly for a slide switch: a casing, a slide slidingly arranged in said casing, said slide providing a chamber; fixed contacts spaced from one another in the direction of sliding movement of said slide and attached to said casing; a contact bridge located in said chamber and adapted to cooperate with said fixed contacts; said contact bridge comprising a substantially rectangular frame; longitudinal sides and shorter sides on said frame; said shorter sides formed integrally with inwardly directed arched contact arms adapted to cooperate with said fixed contacts; said longitudinal sides of said frame provided midway along their length with recesses engaged by projections of said chamber walls; midregions of said longitudinal sides resting on ledges formed on opposite sides of said chamber.
Claim 2
Dependent Claim
126 words
In a contact assembly for a slide switch: a casing, a slide slidingly arranged in said casing, said slide providing a chamber; fixed contacts spaced from one another in the direction of sliding movement of said slide and attached to said casing; a contact bridge located in said chamber and adapted to cooperate with said fixed contacts; said contact bridge comprising a substantially rectangular frame; longitudinal sides and shorter sides on said frame; said shorter sides formed integrally with inwardly directed arched contact arms adapted to cooperate with said fixed contacts; said longitudinal sides of said frame provided midway along their length with recesses engaged by projections of said chamber walls; midregions of said longitudinal sides resting on ledges formed on opposite sides of said chamber.
Claim 3
Dependent Claim
32 words
In a contact assembly according to claim 1, comprising end faces of the projections, said projections engaging said recesses of the longitudinal sides being plastically deformed upon insertion of said contact bridge.
Claim 4
Dependent Claim
24 words
In a contact assembly according to claim 1 characterized in that said contact bridge is provided on one side with a noble metal coating.
Claim 5
Dependent Claim
24 words
In a contact assembly according to claim 1 characterized in that said contact bridge is provided on one side with a coating of silver.
Claim 6
Dependent Claim
26 words
In a contact assembly according to claim 1, comprising a plurality of contact bridges which are arranged in mirror-image fashion on opposite sides of said slide.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |