US3096500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor
Assignee: CTS Corp
•
Filing: 1961-06-30
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Granted: 1963-07-02
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Daily
- 👤 William L Kelver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:04
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A VARIABLE RESISTOR OF THE TYPE WHEREIN CONTACT MEANS BRIDGING PARALLEL CONDUCTIVE AND RESISTIVE PATHS ARE CAUSED TO TRAVERSE SAID PATHS BY ROTATION OF A LEADSCREW, IMPROVED CONTACT MEANS COMPRISING: A CONTACT OF CONDUCTIVE MATERIAL ELECTRICALLY CONNECTING THE CONDUCTIVE AND RESISTIVE PATHS, A DRIVE BLOCK OF NONCONDUCTIVE MATERIAL, THE CONTACT AND THE DRIVE BLOCK HAVING INTERENGAGING SURFACES ONE OF WHICH IS CONVEX SO THAT THE DRIVE BLOCK ENGAGES THE CONTACT ALONG A LINE PARALLEL TO THE CONDUCTIVE AND RESISTIVE PATHS, A DRIVER ATTACHED TO THE DRIVE BLOCK WHICH ENGAGES THE LEADSCREW OF THE VARIABLE RESISTOR SO THAT IT IS MOVED LONGITUDINALLY BY THE ROTATION OF THE LEADSCREW, SAID CONTACT MEANS BEING FURTHER CHARACTERIZED BY THE FACT THAT THE DRIVER AND THE DRIVE BLOCK MAY ROTATE SLIGHTLY IN THE DIRECTION OF ROTATION OF THE LEADSCREW WHILE MAINTAINING LINE ENGAGEMENT WITH THE CONTACT.
Claim 2
Dependent Claim
142 words
IN A VARIABLE RESISTOR OF THE TYPE WHEREIN CONTACT MEANS BRIDGING PARALLEL CONDUCTIVE AND RESISTIVE PATHS ARE CAUSED TO TRAVERSE SAID PATHS BY ROTATION OF A LEADSCREW, IMPROVED CONTACT MEANS COMPRISING: A CONTACT OF CONDUCTIVE MATERIAL ELECTRICALLY CONNECTING THE CONDUCTIVE AND RESISTIVE PATHS, A DRIVE BLOCK OF NONCONDUCTIVE MATERIAL, THE CONTACT AND THE DRIVE BLOCK HAVING INTERENGAGING SURFACES ONE OF WHICH IS CONVEX SO THAT THE DRIVE BLOCK ENGAGES THE CONTACT ALONG A LINE PARALLEL TO THE CONDUCTIVE AND RESISTIVE PATHS, A DRIVER ATTACHED TO THE DRIVE BLOCK WHICH ENGAGES THE LEADSCREW OF THE VARIABLE RESISTOR SO THAT IT IS MOVED LONGITUDINALLY BY THE ROTATION OF THE LEADSCREW, SAID CONTACT MEANS BEING FURTHER CHARACTERIZED BY THE FACT THAT THE DRIVER AND THE DRIVE BLOCK MAY ROTATE SLIGHTLY IN THE DIRECTION OF ROTATION OF THE LEADSCREW WHILE MAINTAINING LINE ENGAGEMENT WITH THE CONTACT.
References Cited (Backward Citations)
US2997679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |