Patent US3243138A successfully refreshed from Google Patents.
US3243138A
Expired / Lapsed
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Tension control for web roll
Assignee: Akerlund and Rausing AB
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Filing: 1964-04-20
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Granted: 1966-03-29
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Erling Ingvar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:09
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/58; B; B65; B65H; B65H23/00; B65H23/04; B65H23/06; B65H23/063; B65H23/18; B65H23/195; B65H23/1955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A DEVICE FOR CONTROLLING THE TENSION IN A WEB OF MATERIAL BEING WOUND UPON OR UNWOUND FROM A ROLL THEREOF COMPRISING A ROTATBLE SHAFT FOR SUPPORTING SAID ROLL, POWER TRANSMISSION MEANS CONNECTED TO SAID SHAFT FOR CONTROLLING THE ROTATION THEREOF, A PRESSURE REDUCING VALVE HAVING ITS LOW PRESSURE SIDE CONNECTED TO CONTROL THE OPERATION OF SAID POWER TRANSMISSION MEANS AND A REGULATOR CONNECTED TO CONTROL THE PRESSURE APPLIED TO SAID POWER TRANSMISSION MEANS BY SAID REDUCING VALVESAID REGULATOR COMPRISING A PRESSURE BAR CONNECTED TO AND MOVABLE ENDWISE RELATIVE TO SAID REDUCING VALVE FOR VARYING THE PRESSURE ON THE LOW PRESSURE SIDE OF SAID VALVE, A DISC SURROUNDING SAID PRESSURE BAR AND TILTABLE ABOUT A FIXED AXIS PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID BAR, MEANS FOR ADJUSTING THE ANGLE OF SAID DISC RELATIVE TO SAID BAR, A BEARING RING MOUNTED TO ROTATE AROUND BUT BEING IMMOVABLE ENDWISE RELATIVE TO THE AXIS OF SAID BAR, AN ARM CONNECTED TO SAID RING AND POSITIONED TO ENGAGE THE OUTER SURFACE OF SAID ROLL OF WEB MATERIAL ON SAID SHAFT, AND MEANS RIGIDLY CONNECTED TO SAID BEARING RING AND POSITIONED TO ENGAGE THE SURFACE OF SAID DISC.
Claim 2
Independent Claim
193 words
A DEVICE FOR CONTROLLING THE TENSION IN A WEB OF MATERIAL BEING WOUND UPON OR UNWOUND FROM A ROLL THEREOF COMPRISING A ROTATBLE SHAFT FOR SUPPORTING SAID ROLL, POWER TRANSMISSION MEANS CONNECTED TO SAID SHAFT FOR CONTROLLING THE ROTATION THEREOF, A PRESSURE REDUCING VALVE HAVING ITS LOW PRESSURE SIDE CONNECTED TO CONTROL THE OPERATION OF SAID POWER TRANSMISSION MEANS AND A REGULATOR CONNECTED TO CONTROL THE PRESSURE APPLIED TO SAID POWER TRANSMISSION MEANS BY SAID REDUCING VALVESAID REGULATOR COMPRISING A PRESSURE BAR CONNECTED TO AND MOVABLE ENDWISE RELATIVE TO SAID REDUCING VALVE FOR VARYING THE PRESSURE ON THE LOW PRESSURE SIDE OF SAID VALVE, A DISC SURROUNDING SAID PRESSURE BAR AND TILTABLE ABOUT A FIXED AXIS PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID BAR, MEANS FOR ADJUSTING THE ANGLE OF SAID DISC RELATIVE TO SAID BAR, A BEARING RING MOUNTED TO ROTATE AROUND BUT BEING IMMOVABLE ENDWISE RELATIVE TO THE AXIS OF SAID BAR, AN ARM CONNECTED TO SAID RING AND POSITIONED TO ENGAGE THE OUTER SURFACE OF SAID ROLL OF WEB MATERIAL ON SAID SHAFT, AND MEANS RIGIDLY CONNECTED TO SAID BEARING RING AND POSITIONED TO ENGAGE THE SURFACE OF SAID DISC.
References Cited (Backward Citations)
US1122878A
Cited
US1652299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |