US3348107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension controlled web drive
Assignee: Reliance Electric and Engineering Co
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Filing: 1964-07-01
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Granted: 1967-10-17
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Russell S Hamby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/195; B65H23/198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A CONTROL FOR REGULATING THE TENSION ON A WEB WOUND ON A ROTATABLE REEL COMPRISING, A VARIABLE SPEED ARRANGEMENT OF THE REEL, AND VARIABLE SPEED ARRANGENENT HAVING A NORMALLY CONSTANT TORQUE, MEANS FOR SENSING THE TORQUE OF SAID VARIABLE SPEED ARRANGEMENT, MEANS FOR GENERATING A REEL SPEED SIGNAL, MEANS FOR GENERATING A LINE SPEED SIGNAL, AN INTEGRATING OPERATIONAL AMPLIFIER, MEANS APPLYING SAID REEL SPEED SIGNAL AND SAID LINE SPEED SIGNAL TO SAID INTEGRATING OPERATIONAL AMPLIFIER OF OPPOSITE POLARITY FOR OBTAINING A CONTROL SIGNAL DIRECTLY PROPORTIONAL TO SAID LINE SPEED SIGNAL AND INVERSELY PROPORTIONAL TO SAID REEL SPEED SIGNAL, AND MEANS RESPONSIVE TO SAID TORQUE SENSING MEANS AND RESPONSIVE TO SAID CONTROL SIGNAL FOR REGULATING THE TORQUE OF SAID VARIABLE SPEED ARRANGEMENT.
Claim 2
Dependent Claim
121 words
A CONTROL FOR REGULATING THE TENSION ON A WEB WOUND ON A ROTATABLE REEL COMPRISING, A VARIABLE SPEED ARRANGEMENT OF THE REEL, AND VARIABLE SPEED ARRANGENENT HAVING A NORMALLY CONSTANT TORQUE, MEANS FOR SENSING THE TORQUE OF SAID VARIABLE SPEED ARRANGEMENT, MEANS FOR GENERATING A REEL SPEED SIGNAL, MEANS FOR GENERATING A LINE SPEED SIGNAL, AN INTEGRATING OPERATIONAL AMPLIFIER, MEANS APPLYING SAID REEL SPEED SIGNAL AND SAID LINE SPEED SIGNAL TO SAID INTEGRATING OPERATIONAL AMPLIFIER OF OPPOSITE POLARITY FOR OBTAINING A CONTROL SIGNAL DIRECTLY PROPORTIONAL TO SAID LINE SPEED SIGNAL AND INVERSELY PROPORTIONAL TO SAID REEL SPEED SIGNAL, AND MEANS RESPONSIVE TO SAID TORQUE SENSING MEANS AND RESPONSIVE TO SAID CONTROL SIGNAL FOR REGULATING THE TORQUE OF SAID VARIABLE SPEED ARRANGEMENT.
References Cited (Backward Citations)
US3114850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |