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Class Information
Number: 242/421.7
Name: Winding, tensioning, or guiding > Tension control or brake > Supply controlled > Supply coil brake control > Slackness sensor > With power control circuit > Electrical
Description: Subject matter wherein the energy regulating network controls electrodynamic energy supplied to the retarding device.

Patents under this class:

Patent Number Title Of Patent Date Issued
7540447 Braking force control method and device for strip-shaped material feeding device Jun. 2, 2009
6648263 Dynamic tensioning for wire-winding device Nov. 18, 2003
6588695 Method and device for unwinding elongated stock Jul. 8, 2003
6527216 Electronic length control wire pay-off system and method Mar. 4, 2003
6457534 Method of reducing pipe fatigue by eliminating short movements Oct. 1, 2002
6457666 Full-compensating tension controller Oct. 1, 2002
6409116 Rapidly adjustable wire control mechanism Jun. 25, 2002
6216747 Beam let-off apparatus and a method for letting off filaments Apr. 17, 2001
6168108 Web tension control apparatus and method Jan. 2, 2001
5671895 System and method for controlling the speed and tension of an unwinding running web Sep. 30, 1997
5469869 Web delivery apparatus for a cigarette manufacturing machine and a delivery method therefor Nov. 28, 1995
5460334 Tape tension control apparatus for video cassette recorder Oct. 24, 1995
5450154 Storage buffer apparatus for continuous-strip type photographic material Sep. 12, 1995
5282586 Apparatus for controlling tape tension in a magnetic tape device by controlling a reverse torque motor Feb. 1, 1994
4709872 Web tension control and emergency stop system Dec. 1, 1987
4629137 Yarn sensor Dec. 16, 1986
4603630 Machine for continuously perforating wide paper Aug. 5, 1986
4565334 Electrohydraulic drive for process line winders, unwinders and other equipment Jan. 21, 1986
4461432 Unwinding apparatus for webs of material, in particular plastic films Jul. 24, 1984
4407331 Speed regulator for the warp beam of a weaving machine Oct. 4, 1983
4381852 Automatic tensioning control for winding stator coils May. 3, 1983
4351493 Tape tension control for a tape recorder Sep. 28, 1982
4347993 Tension monitor means and system Sep. 7, 1982
4286757 Method and apparatus for controlling the braking system for an unwinder Sep. 1, 1981
4278213 Control arrangement for a roll carrier Jul. 14, 1981
4275856 Heat transfer labeling machine Jun. 30, 1981
4269369 Power driven dereeler with strand tension-sensing device May. 26, 1981
4256270 Tension control system for an unwinder Mar. 17, 1981
4199118 Method and apparatus for controlling the braking system for an unwinder Apr. 22, 1980
4151594 Web tension control for high-speed web handling equipment Apr. 24, 1979
4134558 Brake construction for cloth-laying machine Jan. 16, 1979
4074873 Tension servo apparatus Feb. 21, 1978
4048825 Coil re-bar straightener and cutter Sep. 20, 1977
4015794 Web tension control system Apr. 5, 1977
4010910 Film supply and take-up system for motion picture projector Mar. 8, 1977
3995791 Continuous web supply system Dec. 7, 1976
3936008 Reel stand tension control system Feb. 3, 1976

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