Method and apparatus for making collapsible dispensing tubes

Details Method and apparatus for making collapsible dispensing tubes Method and apparatus for making collapsible dispensing tubes

1981-01-12

1982-05-18

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

53550, 53563, 156218, 1563084, 156466, 428 36, B29D 2310, B32B 108, B32B 110

Patent

active

043303510

ABSTRACT:
A collapsible dispensing tube is manufactured continuously from a flat sheet or web which is formed into a cylinder having an overlapped seam which is fused together by heat. A single pressure pad containing an induction heating element applies pressure at the seam area while the seam area is heated. The pressure pad containing the source of induction heat is removed, the cylinder is advanced incrementally, and the cycle is repeated.

REFERENCES:
patent: 3388017 (1968-06-01), Grimsley et al.
patent: 3779836 (1973-12-01), Henry et al.

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