Web tensioning device with plural control inputs

Details Web tensioning device with plural control inputs Web tensioning device with plural control inputs

2003-11-19

2008-10-21

Cuomo, Peter M. (Department: 3654)

Winding, tensioning, or guiding

Tension control or brake

Supply controlled

C226S118300, C242S418100

Reexamination Certificate

active

07438251

ABSTRACT:
A web tensioning device utilizes a dancer arm which can be positioned by a controlled servo motor. In a preferred embodiment, the controller for the servo motor receives an input signal based on the acceleration (positive or negative) of the dancer arm and implements a torque component necessary to maintain predetermined web tension, for example, an applied torque component that changes the position of the dancer arm. The controller may also receive additional input signals indicative of the acceleration of the web itself.

REFERENCES:
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patent: 2985396 (1961-05-01), Johnson
patent: 3053427 (1962-09-01), Wasserman
patent: 3463413 (1969-08-01), Smith
patent: 4549701 (1985-10-01), Lucas
patent: 5659229 (1997-08-01), Rajala
patent: 5964390 (1999-10-01), Borresen et al.
patent: 6024319 (2000-02-01), Kawabata et al.
patent: 6067778 (2000-05-01), Yamamoto et al.
patent: 6547707 (2003-04-01), Cote

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