Roller construction for paper feeding
AssigneeTruly Magic Products, Inc.
InventorHenry A. Kohler
Life of this patent
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Abstract
A paper feeding roller construction including a core of foamed cellular resilient material which has a shore hardness which is not measurable to thereby provide extremely easy compressibility, and an annular skin of a relatively hard elastic material on the core for providing toughness and abrasion-resistance, with the annular skin being coated onto the core so as to retain the cellular structure thereof on its surface to provide air pockets.
Claims18
A paper feeding roller for feeding paper comprising a core of soft resilient material, an annular skin of abrasion-resistant flexible material secured to said core, and an outer surface on said annular skin having depression means therein for causing said outer surface to have a tread for gripping said paper and feeding said paper when said paper is free to move and for accepting air for avoiding planing of said roller when said paper is being fed by said roller and for acting as a lubricant to permit slipping between said paper and said roller in the event said paper is held against movement and for receiving paper particles from said paper, said annular skin being capable of flexing with said core to conform to the surface of the paper against which it is pressed, and said annular skin returning to its original shape upon terminating contact with said paper for ejecting said paper particles from said depression means to thereby produce a self-cleaning action.
Dependencies are inferred from the claim text.