Magnetic rolls for electrostatic recording devices

Details Magnetic rolls for electrostatic recording devices Magnetic rolls for electrostatic recording devices

1982-04-16

1985-05-21

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29125, 29132, B21B 2700

Patent

active

045177198

ABSTRACT:
A magnetic roll having a plurality of magnets integrally set fast with a retaining member at stated portions of the periphery of a roll shaft thereby forming a magnetic force generating part, in which the retaining member is made from a rigid synthetic resin or resin foam, and optionally a strain absorbing groove is provided at a portion outside of said magnetic force generating part.

REFERENCES:
patent: 3742852 (1973-07-01), Leffler et al.
patent: 3945343 (1976-03-01), Berkowitz
patent: 4142281 (1979-03-01), Muller
patent: 4293989 (1981-10-01), Schneider
patent: 4354454 (1982-10-01), Nishikawa

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