Quadrangular trihelicoid gravure roll

Details Quadrangular trihelicoid gravure roll Quadrangular trihelicoid gravure roll

1975-05-16

1976-08-17

Feldbaum, Ronald

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

118637, B21B 2702, B21B 3108, B05B 502

Patent

active

039745546

ABSTRACT:
An article of manufacture for use in the fluid development of electrostatic images is disclosed. The article is characterized by a substantially cylindrical roll which has at least one volute groove partitioned into a plurality of cells for carrying a quantity of development fluid. The partitions prevent a doctor blade, applicable to the cylindrical roll from penetrating too deeply into the cells and thereby prevent substantial quantities of development fluid from being removed from the cells during doctoring.

REFERENCES:
patent: 3276896 (1966-10-01), Fisher
patent: 3424126 (1969-01-01), Mahoney
patent: 3472695 (1964-10-01), Kaufer et al.
patent: 3667428 (1972-06-01), Smith
patent: 3696783 (1972-10-01), Fantuzzo
patent: 3712728 (1973-01-01), Whittaker
patent: 3762365 (1973-10-01), Herzog
patent: 3830199 (1974-08-01), Saito et al.

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