Electrostatic drive system

Details Electrostatic drive system Electrostatic drive system

1978-03-08

1980-04-15

Skaggs, H. Grant

Advancing material of indeterminate length

With adherence or attraction of material to advancing means

By electrostatic force

361234, B65H 1728

Patent

active

041979702

ABSTRACT:
An apparatus for transporting a recording medium, such as transparent electrophotographic film, which has a conductive layer, from a supply to a take-up roll. The apparatus includes a drive roller that has a conductive ring. The conductive layer of the film is maintained at a desired potential, generally ground, and a different potential is applied to the conductive ring of the drive roller. When the film contacts the periphery of the drive roller, an electrostatic attractive force is developed between the conductive ring of the drive roller and the conductive layer of the film, thereby allowing the drive roller to transport the film without slip.

REFERENCES:
patent: Re26951 (1970-09-01), Vaccaro
patent: 2826408 (1958-03-01), Beveridge et al.
patent: 3195363 (1965-07-01), Stuetzer
patent: 4089034 (1978-05-01), Taylor et al.

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