US3072872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary potentiometer
Assignee: Continental Wirt Electronics Corp
•
Filing: 1961-02-15
•
Granted: 1963-01-08
•
Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 William F O'shea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:47
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A ROTARY VARIABLE RESISTANCE UNIT COMPRISING IN COMBINATION, A HOLLOW CYLINDRICAL HOUSING CLOSED AT ONE END AND OPEN AT THE OTHER END, A MOLDED INCULATION LINER COMPLETELY LINING THE INSIDE SURFACE OF THE HOUSING, AN ANNULAR RESISTANCE ELEMENT ASSEMBLY DISPOSED WITHIN THE HOUSING AND SEPARATED AT ALL POINTS THEREFROM BY THE INTERVENING LINER, SAID LINER AND RESISTANCE ELEMENT ASSEMBLY HAVING COMPLEMENTALLY SHAPED ENGAGEABLE PARTS EFFECTIVE WHEN ENGAGED TO RADIALLY EXPAND THE RESISTANCE ELEMENT ASSEMBLY INTO ENGAGEMENT WITH THE LINER SUBSTANTIALLY COMPLETELY ABOUT THE OUTER PERIPHERY OF THE ANNULAR RESISTANCE ELEMENT ASSEMBLY AND RETAIN THE LATTER IN SUCH RADIALLY EXPANDED CONDITION, A ROTOR MOUNTED CONTACT ASSEMBLY INCLUDING A MOVABLE CONTACT FINGER ADAPTED FOR WIPING CONTACT WITH THE RESISTANCE ELEMENT AT ANY DESIRED POINT BETWEEN THE ENDS THEREOF, CONTACT MEANS FOR ELECTRICALLY CONNECTING THE CONTACT ASSEMBLY TO A TERMINAL PROJECTING EXTERNALLY OF THE HOUSING, AND TERMINAL MEANS ELECTRICALLY CONNECTED TO THE RESISTANCE ELEMENT AND PROJECTING EXTERNALLY OF THE HOUSING.
Claim 2
Dependent Claim
157 words
A ROTARY VARIABLE RESISTANCE UNIT COMPRISING IN COMBINATION, A HOLLOW CYLINDRICAL HOUSING CLOSED AT ONE END AND OPEN AT THE OTHER END, A MOLDED INCULATION LINER COMPLETELY LINING THE INSIDE SURFACE OF THE HOUSING, AN ANNULAR RESISTANCE ELEMENT ASSEMBLY DISPOSED WITHIN THE HOUSING AND SEPARATED AT ALL POINTS THEREFROM BY THE INTERVENING LINER, SAID LINER AND RESISTANCE ELEMENT ASSEMBLY HAVING COMPLEMENTALLY SHAPED ENGAGEABLE PARTS EFFECTIVE WHEN ENGAGED TO RADIALLY EXPAND THE RESISTANCE ELEMENT ASSEMBLY INTO ENGAGEMENT WITH THE LINER SUBSTANTIALLY COMPLETELY ABOUT THE OUTER PERIPHERY OF THE ANNULAR RESISTANCE ELEMENT ASSEMBLY AND RETAIN THE LATTER IN SUCH RADIALLY EXPANDED CONDITION, A ROTOR MOUNTED CONTACT ASSEMBLY INCLUDING A MOVABLE CONTACT FINGER ADAPTED FOR WIPING CONTACT WITH THE RESISTANCE ELEMENT AT ANY DESIRED POINT BETWEEN THE ENDS THEREOF, CONTACT MEANS FOR ELECTRICALLY CONNECTING THE CONTACT ASSEMBLY TO A TERMINAL PROJECTING EXTERNALLY OF THE HOUSING, AND TERMINAL MEANS ELECTRICALLY CONNECTED TO THE RESISTANCE ELEMENT AND PROJECTING EXTERNALLY OF THE HOUSING.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |