Method for producing a plastic sleeve

Details Method for producing a plastic sleeve Method for producing a plastic sleeve

1979-07-23

1981-08-25

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156449, 156456, 156DIG26, 156DIG42, B29D 2310, B65C 904

Patent

active

042857503

ABSTRACT:
A sleeve forming apparatus wherein a rectangular sheet of thermoplastic material is formed into a tubular shape having overlapped end portions that are sealed together so as to minimize the lap thickness of the seam. Also disclosed is a method of forming a tubular shape wherein the seam area is worked to minimize its thickness while preserving its liquid-tight characteristics.

REFERENCES:
patent: 2585250 (1952-02-01), Jones et al.
patent: 3200027 (1965-08-01), Fairest
patent: 3802942 (1974-04-01), Amberg et al.
patent: 4053346 (1977-10-01), Amberg et al.

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