US3568013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid-state switch
Assignee: Texas Instruments Inc
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Filing: 1968-12-30
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Granted: 1971-03-02
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Expires: 1988-12-30
Abstract
Abstract A low-cost degaussing switch having no moving parts comprising an open-ended, molded cup-shaped housing, an enclosing cover member, a pill of semiconductor material received in a seat formed in the housing, two combination spring contact-terminal members which are inserted through apertures in the housing and are biased against opposite faces of the pill. The contactterminal members are shaped to enhance their electrical connection with the pill. An exemplary use of the switch in the degaussing circuit of a color television receiver is shown and described.
Inventors
- 👤 Robert F Blaha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:56
CPC Classifications
H; H03; H03K; H03K17/00; H01; H01C; H01C1/00; H01C1/01; H01C1/014; H01C1/02; H01C1/14; H01C1/1406; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/29; H01J; H01J2229/00; H01J2229/0007; H01J2229/0046; H01J2229/0053; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/49171
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
27 words
A switch according to claim 1 in which the pill is in spaced relation to the sidewalls so that the pill is thermally isolated from the ambient.
Claim 2
Dependent Claim
30 words
A switch according to claim 1 in which a boss is provided for each bottom wall aperture to permit a more rigid mounting of the contact-terminal member in the housing.
Claim 3
Dependent Claim
34 words
A switch according to claim 1 in which tabs are provided in the contact-terminal member and are bent out of the plane of the member to preclude movement of the member into the housing.
Claim 4
Dependent Claim
21 words
A switch according to claim 4 in which at least one tab in each contact-terminal member is located within the apertures.
Claim 5
Dependent Claim
58 words
A switch according to claim 1 in which the contact portion of each contact-terminal member is generally J-shaped in cross section having a long and a short leg, the distal free end of the short leg being curved and in engagement with a conductive layer of the pill, and the long leg being connected to the terminal portion.
Claim 6
Dependent Claim
96 words
An electric switch comprising a housing, a piece of semiconductor material mounted in the housing, at least two contact-terminal members mounted in the housing extending from without to within the housing, the contact portion of the contact-terminal member formed with a plurality of fingers, each finger being curved and having a free end, and biased into engagement with the piece of semiconductor material, and the contact-terminal members securely locked in the biased position in engagement with the piece of semiconductor material by tabs located without the housing and bent out of the plane of the member.
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 |