US3882289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binary coded rotary wafer type switch assembly
Assignee: OCI Communcations Inc
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Filing: 1972-02-28
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Granted: 1975-05-06
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Expires: 1992-02-28
Abstract
Abstract A means for determining position of a rotary television channel selector switch having at least 26 finite positions includes rotary and stationary coding means, with the rotary means moving with the channel selector switch. The stationary means has a single input and five outputs, with the connections between the input and outputs varying according to switch position.
Inventors
- 👤 Eugene C Walding
- 👤 John G Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:26
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/173; H04N7/17309; H01; H01H; H01H19/00; H01H19/54; H01H19/56; H01H19/58
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
In a television receiving means, a rotary channel selector switch having a shaft, rotor means mounted on said shaft, a stator positioned about said rotor, said stator having five of output lines and only one input line, said selector switch having at least 26 finite positions, said rotor means and stator having cooperative contact areas such that the input line is connected to different combinations of said output lines for each position of the channel selector switch shaft and such that there is a change in the condition of only one output line each time the switch shaft is moved from one position to an adjacent position, the condition of the output lines providing a coded indication of switch position.
Claim 2
Dependent Claim
120 words
In a television receiving means, a rotary channel selector switch having a shaft, rotor means mounted on said shaft, a stator positioned about said rotor, said stator having five of output lines and only one input line, said selector switch having at least 26 finite positions, said rotor means and stator having cooperative contact areas such that the input line is connected to different combinations of said output lines for each position of the channel selector switch shaft and such that there is a change in the condition of only one output line each time the switch shaft is moved from one position to an adjacent position, the condition of the output lines providing a coded indication of switch position.
Claim 3
Dependent Claim
49 words
The structure of claim 1 further characterized in that said rotor means includes a pair of rotor elements and a layer of insulation positioned therebetween, each of said rotor members having defined contact areas, and a plurality of contact arms on said stator positioned to contact said rotor elements.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |