Patent US3142812A successfully refreshed from Google Patents.
US3142812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Potentiometer
Assignee: WATERS Manufacturing Inc
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Filing: 1963-01-14
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Granted: 1964-07-28
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Expires: 1983-01-14
Abstract
No abstract record available.
Inventors
- 👤 Jr John Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:17
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A POTENTIOMETER COMPRISING A CIRCULAR HOUSING, A RESISTANCE ELEMENT AND A WIPER CONTACT WITHIN THE HOUSING, AND AN OPERATING MEMBER COUPLED TO THE WIPER CONTACT AND EXTENDING CENTRALLY FROM THE FACE OF THE HOUSING, SAID POTENTIOMETER HAVING: (A) SPACED POSITION CALIBRATION MARKINGS INSCRIBED ON THE FACE OF THE HOUSING SURROUNDING THE OPERATING MEMBER, AND (B) A CIRCULAR MANIPULATING KNOB ON THE OUTER END OF THE OPERATING MEMBER, SUBSTANTIALLY COEXTENSIVE WITH THE FACE OF THE HOUSING AND CLOSELY OVERLYING THE CALIBRATION MARKINGS IN SLIDING RELATION WITH THE FACE OF THE HOUSING, (C) THE KNOB HAVING A WINDOW OPENING EXPOSING IN ITS SUCCESSIVE ROTATIONAL POSITIONS ONLY THE PORTION OF THE CALIBRATION MARKINGS CORRESPONDING TO THE RESPECTIVE POSITIONS, THE WINDOW OPENING BEING OF ANGULAR WIDTH GREATER THAN THE SPACING BETWEEN MARKINGS.
Claim 2
Dependent Claim
128 words
A POTENTIOMETER COMPRISING A CIRCULAR HOUSING, A RESISTANCE ELEMENT AND A WIPER CONTACT WITHIN THE HOUSING, AND AN OPERATING MEMBER COUPLED TO THE WIPER CONTACT AND EXTENDING CENTRALLY FROM THE FACE OF THE HOUSING, SAID POTENTIOMETER HAVING: (A) SPACED POSITION CALIBRATION MARKINGS INSCRIBED ON THE FACE OF THE HOUSING SURROUNDING THE OPERATING MEMBER, AND (B) A CIRCULAR MANIPULATING KNOB ON THE OUTER END OF THE OPERATING MEMBER, SUBSTANTIALLY COEXTENSIVE WITH THE FACE OF THE HOUSING AND CLOSELY OVERLYING THE CALIBRATION MARKINGS IN SLIDING RELATION WITH THE FACE OF THE HOUSING, (C) THE KNOB HAVING A WINDOW OPENING EXPOSING IN ITS SUCCESSIVE ROTATIONAL POSITIONS ONLY THE PORTION OF THE CALIBRATION MARKINGS CORRESPONDING TO THE RESPECTIVE POSITIONS, THE WINDOW OPENING BEING OF ANGULAR WIDTH GREATER THAN THE SPACING BETWEEN MARKINGS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |