Patent US5949967A successfully refreshed from Google Patents.
US4035758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable variable resistance control system
Assignee: Duracell Inc USA
•
Filing: 1976-03-15
•
Granted: 1977-07-12
•
Expires: 1996-03-15
Abstract
Abstract A first rotor is fixedly carried by a shaft and a second rotor is loosely carried by the shaft. A coupling means couples the second rotor to the shaft through an interference fit with the second rotor. The two rotors are then adjusted with respect to one another by rotating the shaft while holding the second rotor in place.
Inventors
- 👤 Alfred A. Panke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:51
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/16; H01C10/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
In a control system wherein first and second rotors are carried by a shaft and wherein electrical contact means are carried by said first and second rotors electrically bridging first and second resistance and collector paths, the improvement characterized by a system permitting adjustment of said first and second rotors with respect to each other comprising: (a) said first rotor fixedly carried by said shaft, (b) said second rotor loosely carried by said shaft, and (c) barb means coupled to said shaft and engaging a face of said second rotor and providing an interference fit therewith.
Claim 2
Dependent Claim
96 words
In a control system wherein first and second rotors are carried by a shaft and wherein electrical contact means are carried by said first and second rotors electrically bridging first and second resistance and collector paths, the improvement characterized by a system permitting adjustment of said first and second rotors with respect to each other comprising: (a) said first rotor fixedly carried by said shaft, (b) said second rotor loosely carried by said shaft, and (c) barb means coupled to said shaft and engaging a face of said second rotor and providing an interference fit therewith.
Claim 3
Dependent Claim
32 words
In a control means according to claim 1 wherein said barb means includes a plate fixedly carried by said shaft and at least one barb carried by said plate engaging said face.
References Cited (Backward Citations)
US2958837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |