Patent US3083887A successfully refreshed from Google Patents.
US3083887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web tension control mechanism
Assignee: Individual
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Filing: 1961-01-12
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Granted: 1963-04-02
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Expires: 1981-01-12
Abstract
No abstract record available.
Inventors
- 👤 William F Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:05
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/044; B65H23/18; B65H23/188; B65H23/1888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A WEB TENSION CONTROL MECHANISM COMPRISING A FRAMEWORK, A WEB DRIVE ROLLER POSITIVELY PROPELLING THE WEB, A VARIABLE SPEED BELT DRIVE CONNECTED TO SAID DRIVE ROLLER FOR ADJUSTMENT OF THE WEB DRIVE SPEED BY VARIATIONS IN THE TENSION OF THE BELT, A SINGLE PAIR OF PARALLEL LEVER ARMS COAXIALLY MOUNTED FOR ROTATION ON SAID FRAMEWORK, A SINGLE FLOATING WEB-TENSION SENSING ROLLER MOUNTED BETWEEN SAID ARMS REMOTE FROM THEIR ROTATION AXIS FOR MOVEMENT RELATIVE TO SAID FRAMEWORK AND BODILY URGED IN ONE DIRECTION BY THE TENSION OF THE WEB PASSING OVER IT AND IN THE OTHER DIRECTION BY THE OPERATION OF A SENSITIVE-ACTING, RESILIENT, ESSENTIALLY CONSTANT-FORCE BIASING MEANS, AND MEANS RESPONSIVE TO BODILY MOVEMENTS OF SAID SENSING ROLLER INDUCED BY CHANGES IN THE WEB TENSION FOR CONTROLLING THE TENSION OF THE DRIVE BELT TO ALTER THE SPEED OF SAID DRIVE ROLLER IN THE DIRECTION REQUIRED TO RESTORE THE ORIGINAL VALUE OF WEB TENSION; SAID BIASING MEANS COMPRISING A CYLINDER AND HOLLOW-CAVITY PISTON CONNECTED BETWEEN SAID FRAMEWORK AND ONE OF SAID LEVER ARMS AND TOGETHER DEFINING A FLUID-PRESSURE CHAMBER WHICH IS LONG RELATIVE TO ITS DIAMETER AND TO THE NORMAL TRAVEL MOVEMENT OF SAID SENSING ROLLER, AND A PRESSURE-REGULATED FLUID PRESSURE SUPPLY LINE COMMUNICATING WITH SAID CAVITY.
Claim 2
Dependent Claim
205 words
A WEB TENSION CONTROL MECHANISM COMPRISING A FRAMEWORK, A WEB DRIVE ROLLER POSITIVELY PROPELLING THE WEB, A VARIABLE SPEED BELT DRIVE CONNECTED TO SAID DRIVE ROLLER FOR ADJUSTMENT OF THE WEB DRIVE SPEED BY VARIATIONS IN THE TENSION OF THE BELT, A SINGLE PAIR OF PARALLEL LEVER ARMS COAXIALLY MOUNTED FOR ROTATION ON SAID FRAMEWORK, A SINGLE FLOATING WEB-TENSION SENSING ROLLER MOUNTED BETWEEN SAID ARMS REMOTE FROM THEIR ROTATION AXIS FOR MOVEMENT RELATIVE TO SAID FRAMEWORK AND BODILY URGED IN ONE DIRECTION BY THE TENSION OF THE WEB PASSING OVER IT AND IN THE OTHER DIRECTION BY THE OPERATION OF A SENSITIVE-ACTING, RESILIENT, ESSENTIALLY CONSTANT-FORCE BIASING MEANS, AND MEANS RESPONSIVE TO BODILY MOVEMENTS OF SAID SENSING ROLLER INDUCED BY CHANGES IN THE WEB TENSION FOR CONTROLLING THE TENSION OF THE DRIVE BELT TO ALTER THE SPEED OF SAID DRIVE ROLLER IN THE DIRECTION REQUIRED TO RESTORE THE ORIGINAL VALUE OF WEB TENSION; SAID BIASING MEANS COMPRISING A CYLINDER AND HOLLOW-CAVITY PISTON CONNECTED BETWEEN SAID FRAMEWORK AND ONE OF SAID LEVER ARMS AND TOGETHER DEFINING A FLUID-PRESSURE CHAMBER WHICH IS LONG RELATIVE TO ITS DIAMETER AND TO THE NORMAL TRAVEL MOVEMENT OF SAID SENSING ROLLER, AND A PRESSURE-REGULATED FLUID PRESSURE SUPPLY LINE COMMUNICATING WITH SAID CAVITY.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |