Patent US3237140A successfully refreshed from Google Patents.
US3237140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistance control
Assignee: CTS Corp
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Filing: 1963-05-20
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Granted: 1966-02-22
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Barden
- 👤 Charles C Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:38
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A VARIABLE RESISTANCE UNIT, THE COMBINATION OF AN HOLLOW CYLINDRICAL HOUSING CLOSED AT ONE END AND OPEN AT THE OTHER END, A BASE MEMBER CLOSING THE OPEN END OF THE HOUSING, THE HOUSING BEING PROVIDED WITH A CENTRALLY LOCATED APERTURE, A RESISTANCE ELEMENT DISOSED IN THE HOUSING, A DRIVER MOUNTED IN THE HOUSING, A CONTRACT ASSEMBLY CONSTRAINED TO ROTATE WITH THE DRIVER, A SHAFT JOURNALED IN THE CENTRALLY LOCATED APERTURE, A STOP PIN, AND A LATERAL EXTENSION INTEGRAL WITH THE SHAFT DEFINING A STOP MEMBER ENGAGEABLE WITH THE STOP PIN FOR LIMITING ROTATION OF THE SHAFT TO AN ANGLE OF LESS THAN 360*, A PORTION OF THE LATERAL EXTENSION AND OF THE SHAFT BEING DISPOSED IN A MATING CAVITY PROVIDED IN THE DRIVER CONSTRAINING THE DRIVER TO ROTATE WITH THE SHAFT.
Claim 2
Dependent Claim
132 words
IN A VARIABLE RESISTANCE UNIT, THE COMBINATION OF AN HOLLOW CYLINDRICAL HOUSING CLOSED AT ONE END AND OPEN AT THE OTHER END, A BASE MEMBER CLOSING THE OPEN END OF THE HOUSING, THE HOUSING BEING PROVIDED WITH A CENTRALLY LOCATED APERTURE, A RESISTANCE ELEMENT DISOSED IN THE HOUSING, A DRIVER MOUNTED IN THE HOUSING, A CONTRACT ASSEMBLY CONSTRAINED TO ROTATE WITH THE DRIVER, A SHAFT JOURNALED IN THE CENTRALLY LOCATED APERTURE, A STOP PIN, AND A LATERAL EXTENSION INTEGRAL WITH THE SHAFT DEFINING A STOP MEMBER ENGAGEABLE WITH THE STOP PIN FOR LIMITING ROTATION OF THE SHAFT TO AN ANGLE OF LESS THAN 360*, A PORTION OF THE LATERAL EXTENSION AND OF THE SHAFT BEING DISPOSED IN A MATING CAVITY PROVIDED IN THE DRIVER CONSTRAINING THE DRIVER TO ROTATE WITH THE SHAFT.
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |