US3120650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Potentiometer
Assignee: Daystrom Inc
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Filing: 1961-01-27
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Granted: 1964-02-04
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Expires: 1981-01-27
Abstract
No abstract record available.
Inventors
- 👤 Blanco Elias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:32
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A VARIABLE RESISTANCE, COMPRISING: A STRUCTURE MOUNTED FOR ROTATIONAL MOVEMENT ABOUT A LONGITUDINAL AXIS; A RESISTANCE ELEMENT INCLUDING A PLURALITY OF TURNS OF RESISTANCE WIRE UNIFORMLY WOUND AROUND AN AXIS FORMED AS A HELIX ABOUT SAID AXIS OF ROTATION; A SUPPORT ABOVE SAID ROTATABLE STRUCTURE HAVING A LONGITUDINALLY EXTENDING GROOVE ON ITS UNDER SURFACE; AND AN ELONGATE STRIP OF ELECTRICAL CONDUCTING MATERIAL SECURED OVER SAID GROOVE, SAID STRIP HAVING A RESILIENTLY SUPPORTED LONGITUDINALLY EXTENDING DOWNWARDLY DEFORMED SURFACE PORTION FOR MAKING WIPING ENGAGEMENT WITH THE TURNS OF SAID RESISTANCE ELEMENT DURING SAID ROTATIONAL MOVEMENT.
Claim 2
Dependent Claim
93 words
A VARIABLE RESISTANCE, COMPRISING: A STRUCTURE MOUNTED FOR ROTATIONAL MOVEMENT ABOUT A LONGITUDINAL AXIS; A RESISTANCE ELEMENT INCLUDING A PLURALITY OF TURNS OF RESISTANCE WIRE UNIFORMLY WOUND AROUND AN AXIS FORMED AS A HELIX ABOUT SAID AXIS OF ROTATION; A SUPPORT ABOVE SAID ROTATABLE STRUCTURE HAVING A LONGITUDINALLY EXTENDING GROOVE ON ITS UNDER SURFACE; AND AN ELONGATE STRIP OF ELECTRICAL CONDUCTING MATERIAL SECURED OVER SAID GROOVE, SAID STRIP HAVING A RESILIENTLY SUPPORTED LONGITUDINALLY EXTENDING DOWNWARDLY DEFORMED SURFACE PORTION FOR MAKING WIPING ENGAGEMENT WITH THE TURNS OF SAID RESISTANCE ELEMENT DURING SAID ROTATIONAL MOVEMENT.
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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |