Method of forming paper products

Details Method of forming paper products Method of forming paper products

1976-08-02

1978-07-18

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264163, 264292, 264320, B31D 502

Patent

active

041016270

ABSTRACT:
Apparatus and method are provided for producing paper products by forming a paper sheet stock into a desired shape, forcing the shaped paper product through a heat-setting tube, and steam heating the shaped paper product sufficiently to maintain its shape upon removal from the heat-setting tube. Maintaining the paper product in its desired shape is accomplished by supplying steam into the interior of the heat-setting tube and into a steam tube surrounding the heat-setting tube. Preferably, superheated steam is employed in the formation of a nested group of shaped paper products, such as coffee filters, which are simultaneously produced from multi-layered paper sheet stock.

REFERENCES:
patent: 209686 (1878-11-01), House
patent: 1645931 (1927-10-01), Ruckert
patent: 2066988 (1937-01-01), Lee
patent: 2120328 (1938-06-01), Ferngren
patent: 2952297 (1960-09-01), Hollis
patent: 3550421 (1970-12-01), Stakel

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