US3112897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass filament tensioning system
Assignee: Individual
•
Filing: 1962-03-20
•
Granted: 1963-12-03
•
Expires: 1982-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert W Eshbaugh
- 👤 Kessler Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:28
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/8016; B65; B65H; B65H59/00; B65H59/02; B65H59/04; B65H59/10; B65H59/18; B65H59/40; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/312
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
APPARATUS FOR APPLYING UNIFORM TENSION TO ROVING OF GLASS FILAMENTS UPON A WINDING MACHINE COMPRISING, IN COMBINATION, (A) A FIRST DYNAMIC COARSE TENSIONING MEANS HAVING, (1) AT LEAST ONE SPOOL HAVING ROVING OF GLASS FILAMENTS WOUND IN ONE DIRECTION THEREON, (2) AN ELECTRIC MOTOR MEANS, (3) AND A MAGNETIC HYSTERESIS BRAKE MEANS HAVING A DRIVING SHAFT CONNECTED TO EACH SPOOL AND A DRIVEN SHAFT CONNECTED TO SAID MOTOR MEANS FOR CONVERTING A TORQUE OUTPUT OF SAID MOTOR MEANS AND APPLYING TO THE DRIVING SHAFT A UNIFORM PREDETERMINED TORQUE IN THE DIRECTION NECESSARY FOR WINDING THE ROVING ON SAID SPOOL, (B) A WINDING MACHINE HAVING, (1) A MANDREL, (2) ROTATING MEANS CONNECTED TO SAID MANDREL FOR ROTATING SAID MANDREL ABOUT ITS LONGITUDINAL AXIS IN A PREDETERMINED DIRECTION, (3) AND A CARRIAGE MOUNTED ON SAID WINDING MACHINE, (C) A CARRIAGE MOUNTED DYNAMIC VERNIER TENSIONING MEANS HAVING, (1) AT LEAST ONE VARIABLE TORQUE ELECTRICAL DRIVING MOTOR, (2) A DRIVE PULLEY CONNECTED TO SAID DRIVING MOTOR,
Claim 2
Dependent Claim
162 words
APPARATUS FOR APPLYING UNIFORM TENSION TO ROVING OF GLASS FILAMENTS UPON A WINDING MACHINE COMPRISING, IN COMBINATION, (A) A FIRST DYNAMIC COARSE TENSIONING MEANS HAVING, (1) AT LEAST ONE SPOOL HAVING ROVING OF GLASS FILAMENTS WOUND IN ONE DIRECTION THEREON, (2) AN ELECTRIC MOTOR MEANS, (3) AND A MAGNETIC HYSTERESIS BRAKE MEANS HAVING A DRIVING SHAFT CONNECTED TO EACH SPOOL AND A DRIVEN SHAFT CONNECTED TO SAID MOTOR MEANS FOR CONVERTING A TORQUE OUTPUT OF SAID MOTOR MEANS AND APPLYING TO THE DRIVING SHAFT A UNIFORM PREDETERMINED TORQUE IN THE DIRECTION NECESSARY FOR WINDING THE ROVING ON SAID SPOOL, (B) A WINDING MACHINE HAVING, (1) A MANDREL, (2) ROTATING MEANS CONNECTED TO SAID MANDREL FOR ROTATING SAID MANDREL ABOUT ITS LONGITUDINAL AXIS IN A PREDETERMINED DIRECTION, (3) AND A CARRIAGE MOUNTED ON SAID WINDING MACHINE, (C) A CARRIAGE MOUNTED DYNAMIC VERNIER TENSIONING MEANS HAVING, (1) AT LEAST ONE VARIABLE TORQUE ELECTRICAL DRIVING MOTOR, (2) A DRIVE PULLEY CONNECTED TO SAID DRIVING MOTOR,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |