Sheet feeding roller

Details Sheet feeding roller Sheet feeding roller

2007-10-23

2007-10-23

Bidwell, James R. (Department: 3651)

Conveyors, chutes, skids, guides, and ways

Rollerways

Submerging and rising

C492S056000

Reexamination Certificate

active

11296450

ABSTRACT:
A sheet feeding roller, available at a lower cost, having lower hardness with securing both abrasion resistance and sustainability of friction coefficient. The sheet feeding roller comprises a hub, an inner layer provided on an outer peripheral surface of the hub, and an outer layer provided on an outer peripheral surface of the inner layer, the inner layer and the outer layer are formed by an unfoamed cured body of thermosetting urethane rubber wherein the outer layer is harder than the inner layer.

REFERENCES:
patent: 5607039 (1997-03-01), Byers et al.
patent: 5744238 (1998-04-01), Limperis et al.
patent: 6042100 (2000-03-01), Jones et al.
patent: 6059095 (2000-05-01), Tsuji
patent: 6939279 (2005-09-01), Shea et al.
patent: 2001-220029 (2001-08-01), None

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