Roll for use in business machine

Details Roll for use in business machine Roll for use in business machine

1986-03-06

1987-11-17

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428 36, 428 65, 428 71, 4283186, 4283188, 4283191, 428357, 428375, 428383, 4284258, D02G 300

Patent

active

047074086

ABSTRACT:
A roll for use in business machines has a shaft and a roll main body disposed at the circumference of said shaft, wherein the roll main body is made of a polyurethane resin comprising a surface layer composed of a skin layer and an inner layer composed of a foam layer which are formed into an integrated structure. The roll is suitably used for removing residual toners on the photo-sensitive drum in dry process copying machines.

REFERENCES:
patent: 2753276 (1956-07-01), Brochhagen et al.
patent: 2916403 (1959-12-01), Calderwood
patent: 2959508 (1960-11-01), Graham et al.
patent: 4576845 (1986-03-01), Krotchko
patent: 4576970 (1986-03-01), Ganster et al.
patent: 4579775 (1986-04-01), Ohta et al.
Zwolinsky, L. M., SPE Journal, "Molded Integral-Skin Urethane Foam", vol. 25, pp. 24-27, 1969.

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