Patent US3372320A successfully refreshed from Google Patents.
US3372320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web winding apparatus
Assignee: EIDP Inc
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Filing: 1965-05-12
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Granted: 1968-03-05
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Expires: 1985-05-12
Abstract
No abstract record available.
Inventors
- 👤 Mardell L Boyum
- 👤 Peter F Grinnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:19
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/195; B65H23/1955; B65H23/198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
WINDING APPARATUS COMPRISING A ROTATABLE MEMBER ADAPTED TO BE DRIVEN BY A DRIVE MOTOR; AN ADJUSTABLE MAGNETIC CLUTCH OPERATIVELY CONNECTED BETWEEN SAID ROTATABLE MEMBER AND THE DRIVE MOTOR; ADVANCING MEANS ADAPTED TO ADVANCE A WEB OF MATERIAL TO BE WOUND INTO ROLL FORM ON THE ROTATABLE MEMBER; MEANS ADAPTED TO TRANSMIT MOTIVE POWER TO SAID MAGNETIC CLUTCH RESPONSIVE TO A CONTROL SIGNAL FROM A TENSION CONTROL MEANS ADAPTED TO GENERATE A CONTROL SIGNAL PROPORTIONAL TO THE RATIO OF THE ROTATIONAL SPEED OF THE ADVANCING MEANS AND THE ROTATABLE MEMBER AND BIAS SIGNALS SELECTED FROM ANY ONE OF: AN ACCELERATION-DECELERATION CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SPEED OF SAID ADVANCING MEANS; A FIRST ADJUSTABLE FRICTION CONTROL MEANS ADAPTED TO GENERATE A FIXED BIAS SIGNAL; A SECOND ADJUSTABLE FRICTION CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SPEED OF THE ROTATABLE MEMBER; AN ADJUSTABLE FORCING TORQUE CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SIZE OF THE ROLL OF WOUND WEB MATERIAL; AN ADJUSTABLE STANDING TENSION CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SIZE OF THE ROLL OF WOUND WEB MATERIAL; AND AN ADJUSTABLE TENSION TAPER CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL OF FIXED PERCENTAGE OF THE TENSION CONTROL SIGNAL; FOR ROTATING SAID ROTATABLE MEMBER AND MAINTAINING A UNIFORM TENSION PATTERN BETWEEN THE CORE AND THE OUTER PERIPHERY OF THE WOUND WEB MATERIAL.
Claim 2
Dependent Claim
238 words
WINDING APPARATUS COMPRISING A ROTATABLE MEMBER ADAPTED TO BE DRIVEN BY A DRIVE MOTOR; AN ADJUSTABLE MAGNETIC CLUTCH OPERATIVELY CONNECTED BETWEEN SAID ROTATABLE MEMBER AND THE DRIVE MOTOR; ADVANCING MEANS ADAPTED TO ADVANCE A WEB OF MATERIAL TO BE WOUND INTO ROLL FORM ON THE ROTATABLE MEMBER; MEANS ADAPTED TO TRANSMIT MOTIVE POWER TO SAID MAGNETIC CLUTCH RESPONSIVE TO A CONTROL SIGNAL FROM A TENSION CONTROL MEANS ADAPTED TO GENERATE A CONTROL SIGNAL PROPORTIONAL TO THE RATIO OF THE ROTATIONAL SPEED OF THE ADVANCING MEANS AND THE ROTATABLE MEMBER AND BIAS SIGNALS SELECTED FROM ANY ONE OF: AN ACCELERATION-DECELERATION CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SPEED OF SAID ADVANCING MEANS; A FIRST ADJUSTABLE FRICTION CONTROL MEANS ADAPTED TO GENERATE A FIXED BIAS SIGNAL; A SECOND ADJUSTABLE FRICTION CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SPEED OF THE ROTATABLE MEMBER; AN ADJUSTABLE FORCING TORQUE CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SIZE OF THE ROLL OF WOUND WEB MATERIAL; AN ADJUSTABLE STANDING TENSION CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL PROPORTIONAL TO THE SIZE OF THE ROLL OF WOUND WEB MATERIAL; AND AN ADJUSTABLE TENSION TAPER CONTROL MEANS ADAPTED TO GENERATE A BIAS SIGNAL OF FIXED PERCENTAGE OF THE TENSION CONTROL SIGNAL; FOR ROTATING SAID ROTATABLE MEMBER AND MAINTAINING A UNIFORM TENSION PATTERN BETWEEN THE CORE AND THE OUTER PERIPHERY OF THE WOUND WEB MATERIAL.
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |