Decurler device

Details Decurler device Decurler device

1975-10-14

1977-03-22

Blunk, Evon C.

Sheet feeding or delivering

Delivering

With transfer means between conveyor and receiver

72 54, 72160, 162271, 271 63, 271204, 271208, B65H 2904, B65H 2970

Patent

active

040132846

ABSTRACT:
An improved decurler device, in the form of a rounded, substantially M-shaped vacuum bar, is provided for drawing curled sheet material into its rounded trough where a multiplicity of spaced vacuum openings are located thereby reversely bending the sheet and taking out the curl previously imparted to it. The bar is made of a reinforced plastic material with a hard and very smooth surface which wears well and does not scratch, mar or otherwise destruct the face of the sheet materials. A dispersion of fine carbon particles in the surface material of the bar is also effective to eliminate static electric charges built up in the sheet material incident to previous processing operations.

REFERENCES:
patent: 2852255 (1958-09-01), Fischer
patent: 3076492 (1963-02-01), Monks
patent: 3684277 (1972-08-01), Buschmann
patent: 3843035 (1974-10-01), Fitterer et al.
Gaylord, M.W. Reinforced Plastics, Theory and Practice Boston, Cahners, 1974, pp. 32-34, 131-134.

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