Method of making double layer sheet metal panels with ducts form

Details Method of making double layer sheet metal panels with ducts form Method of making double layer sheet metal panels with ducts form

1984-06-22

1986-01-07

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

72 54, 72 58, 72 61, 156289, B29C 6500

Patent

active

045632308

ABSTRACT:
A method of making sheet metal panels from two layers between which ducts are formed by inflation, in which the inflation is effected by the use of a predetermined quantity of Freon in the liquid state, the subsequent evacuation of the Freon from the ducts being effected by evaporation.

REFERENCES:
patent: 655838 (1900-08-01), Tesla
patent: 2895172 (1959-07-01), Meissner
patent: 3021888 (1962-02-01), Marinovich et al.
patent: 3094956 (1963-06-01), Pauls
patent: 3187533 (1965-06-01), Cave
patent: 4126659 (1978-11-01), Blad

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