US4012710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple output potentiometer network
Assignee: Clarostat Manufacturing Co Inc
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Filing: 1976-05-06
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Granted: 1977-03-15
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Expires: 1996-05-06
Abstract
Abstract A multiple output potentiometer network having a low resistance zone to provide the output function characteristic and a high resistance zone with which each of a plurality of output contacts is in contact providing a high degree of electrical isolation between the output contacts of said plurality.
Inventors
- 👤 Frank L. Ward
- 👤 Victor J. Carbonneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/16; H01C10/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
A multiple output potentiometer network having a plurality of variable outputs including in combination a nonelectrical conducting substrate, a thin layer of high resistance material disposed upon said substrate, first and second zones of said high resistance material, a thin layer of low resistance material disposed on said first zone, a plurality of output members mounted on said substrate in spaced relation, a wiper member of each output member in contact with said high resistance material and movable thereon through a limited path, first and second termination means, first and second trimmer resistance means between said first termination means and said second termination means respectively, means for applying a voltage potential between said first and second termination means and means for taking an output voltage between one of said termination means and one of said output members.
Claim 2
Dependent Claim
137 words
A multiple output potentiometer network having a plurality of variable outputs including in combination a nonelectrical conducting substrate, a thin layer of high resistance material disposed upon said substrate, first and second zones of said high resistance material, a thin layer of low resistance material disposed on said first zone, a plurality of output members mounted on said substrate in spaced relation, a wiper member of each output member in contact with said high resistance material and movable thereon through a limited path, first and second termination means, first and second trimmer resistance means between said first termination means and said second termination means respectively, means for applying a voltage potential between said first and second termination means and means for taking an output voltage between one of said termination means and one of said output members.
Claim 3
Dependent Claim
44 words
A multiple output potentiometer network in accordance with claim 1 having first and second low resistance means of fixed non-linear characteristic interposed between said first trimmer resistance and said low resistance material and between said second trimmer resistance and said low resistance material respectively.
References Cited (Backward Citations)
US2883499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |