Piercing blade temperature control

Details Piercing blade temperature control Piercing blade temperature control

1977-06-13

1979-02-20

Coan, James F.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

83171, 93DIG1, 156515, B31B 114, B31B 164

Patent

active

041400461

ABSTRACT:
A sheet piercing blade used to form perforate separation lines across continuous strip partible flattened tubular plastic film packaging bags is maintained a preselected optimum operating temperature by a heat transfer fluid medium circulating through a duct in substantially contiguous contact with the blade, a heat exchanger, and conduits connecting the duct and the heat exchanger.

REFERENCES:
patent: 2441757 (1948-05-01), Doering et al.
patent: 2808690 (1957-10-01), Mahaffy et al.
patent: 2997905 (1961-08-01), Larson
patent: 3397505 (1968-08-01), Critchell
patent: 3654841 (1972-04-01), Davis, Jr.
patent: 4019947 (1977-04-01), Stock et al.

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