Patent US3595495A successfully refreshed from Google Patents.
US3595495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eddy current clutch actuated rewinder
Assignee: Guardian Packaging Corp
•
Filing: 1969-03-17
•
Granted: 1971-07-27
•
Expires: 1989-03-17
Abstract
Abstract A web processing machine is provided with a single-variable speed motor as a source of power. The motor through connected gearing provides power outputs to a web metering feed section and a web rewind section which respectively feed and wind the continuously advancing web. An eddy current coupling between the metering feed section and rewind section is connected to a voltage source which provides excitation to the eddy current coupling coil. The eddy current coupling provides an adjustable horsepower output which is directly proportional to the speed of the advancing web. The torque output of the eddy current coupling is directly proportional to the difference in speed of the coupling''s rotation input and output members. The above arrangement provides uniform web tension at all speeds of the web processing machine.
Inventors
- 👤 Peter Cloeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:55
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/1806; B65H23/195; B65H23/1955; B65H23/198; D; D06; D06B; D06B3/00; D06B3/34; D06B3/345; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/094; H02K49/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
In a web processing machine for taking an advancing web and transferring said web to a convolute wind about a rewind roll on a rewinder wherein said rewinder includes, rewind roll drive means for rotating said rewind roll to receive said advancing web in a convolute wind, rotating web metering means upstream of said advancing web from said rewind roll for advancing said web under power as said web passes to said rewind roll, and means for driving said rewind roll drive means and said web metering means, the improvements in said means for driving including; a singlevariable speed motor means having a rotating shaft for powering said web metering means and said rewind roll drive means; eddy current coupling means having an input shaft and an output shaft; transmission means linking said shaft of said motor, said input of said coupling and said rotating web metering means to rotate at a speed proportional to the speed of said driving means; and said rewind roll drive means directly coupled to the output of said eddy current coupling means to transmit power and torque from the output of said coupling at an identical rotational speed.
Claim 2
Dependent Claim
194 words
In a web processing machine for taking an advancing web and transferring said web to a convolute wind about a rewind roll on a rewinder wherein said rewinder includes, rewind roll drive means for rotating said rewind roll to receive said advancing web in a convolute wind, rotating web metering means upstream of said advancing web from said rewind roll for advancing said web under power as said web passes to said rewind roll, and means for driving said rewind roll drive means and said web metering means, the improvements in said means for driving including; a singlevariable speed motor means having a rotating shaft for powering said web metering means and said rewind roll drive means; eddy current coupling means having an input shaft and an output shaft; transmission means linking said shaft of said motor, said input of said coupling and said rotating web metering means to rotate at a speed proportional to the speed of said driving means; and said rewind roll drive means directly coupled to the output of said eddy current coupling means to transmit power and torque from the output of said coupling at an identical rotational speed.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |