Air injector for cooling envelope weldings

Details Air injector for cooling envelope weldings Air injector for cooling envelope weldings

1994-03-08

1996-06-04

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work cooling means

156350, 156555, 156359, 53141, 533723, 533753, B32B 3100

Patent

active

055229646

ABSTRACT:
This invention refers to a continuous or intermittent air injection system for enveloping machines consisting in an air tubing comprising suitable air expulsion means, controlled by an electrovalve and equipped with at least two impulsion positions when are the positions confronting the sealed area of the envelope that allows the cooling of the welding, and the upper position which is the corresponding to the stoppage of the machine with the cooling of the thermowelding rollers that permits their temperature regulation and control.

REFERENCES:
patent: 3712020 (1973-01-01), Norr et al.
patent: 3714720 (1973-02-01), Drost et al.
patent: 4272944 (1981-06-01), Suga
patent: 4364892 (1982-12-01), Rehlen et al.
patent: 4696147 (1987-09-01), Noh

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