US3637953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cradle switch
Assignee: International Standard Electric Corp
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Filing: 1969-09-15
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Granted: 1972-01-25
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Expires: 1989-09-15
Abstract
Abstract A cradle switch is formed by a rocker having the shape of a cylinder section which, on its bent jacketing surface, is provided with switching cams which are capable of being moved between contact springs mounted to move horizontally on a printed circuit board, and thus to actuate these contacts.
Inventors
- 👤 Heinz Ruster
- 👤 Gunter Schwanck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:48
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/63; H04; H04M; H04M1/00; H04M1/02; H04M1/04; H04M1/06; H04M1/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A cradle switch for use in telephone subsets, comprising a plurality of contact springs having connect ends and contact ends, a printed circuit board mounted on a baseplate, mounting means associated with said last plate for supporting said contact springs by respective connect ends, means electrically coupling said respective connect ends to said printed circuit board, said mounting means permitting contact ends of said contact springs to move parallel to the face of the printed circuit board, means supporting a rocker on said baseplate for actuating the contact springs, the rocker including a cylinder section provided with switching cams capable of being moved in interleaf fashion between the contact springs, and means restricting travel of the rocker between two end positions.
Claim 2
Dependent Claim
121 words
A cradle switch for use in telephone subsets, comprising a plurality of contact springs having connect ends and contact ends, a printed circuit board mounted on a baseplate, mounting means associated with said last plate for supporting said contact springs by respective connect ends, means electrically coupling said respective connect ends to said printed circuit board, said mounting means permitting contact ends of said contact springs to move parallel to the face of the printed circuit board, means supporting a rocker on said baseplate for actuating the contact springs, the rocker including a cylinder section provided with switching cams capable of being moved in interleaf fashion between the contact springs, and means restricting travel of the rocker between two end positions.
Claim 3
Dependent Claim
23 words
A cradle switch according to claim 1, in which the means supporting the rocker includes upright supports die-cast as part of the baseplate.
Claim 4
Dependent Claim
21 words
A cradle switch according to claim 1, in which limiting stops for restricting movement are die-cast as part of said rocker.
Claim 5
Dependent Claim
42 words
A cradle switch according to claim 1, in which the switching cams are constituted respectively by two rectangular bodies which are staggered behind each other in the direction of movement, and which are connected to one another by a rhombic center part.
Claim 6
Dependent Claim
37 words
A cradle switch according to claim 1, in which sequence contacts are formed by staggering the spacing between the contact springs, bulges forming part of said contact springs, and the switching cams in the direction of movement.
Claim 7
Dependent Claim
29 words
A cradle switch according to claim 2, in which the means mounting said contact springs includes slots in a strap die-cast as part of the baseplate of the subset.
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |