Web transport control circuit

Details Web transport control circuit Web transport control circuit

1980-06-30

1982-11-02

Dobeck, B.

Electricity: motive power systems

With particular motor-driven load device

Tension-maintaining type of motor-control system

318 6, B65H 7700

Patent

active

043575609

ABSTRACT:
Method and apparatus is disclosed for driving the take up and supply spools of a web transport system. The apparatus includes a pair of direct current motors, one for each spool, and a circuit for regulating the current in the two motors. The circuit senses the counter EMF across the takeup motor, and accordingly controls the current in the supply motor, in order to apply a proper dragging torque to the supply spool. In the event of a loss of power to the web transport, the two spools are brought to a stop in a controlled manner by electronic means.

REFERENCES:
patent: 3501682 (1970-03-01), Jacoby
patent: 3704401 (1972-11-01), Miller
patent: 4012674 (1977-03-01), Spitsbergen et al.
patent: 4063139 (1977-12-01), Miller

Affiliated with

Also associated with

Rating

Web transport control circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Web transport control circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Web transport control circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-626077