Method for producing plastic-covered containers

Details Method for producing plastic-covered containers Method for producing plastic-covered containers

1975-09-29

1977-03-08

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156294, 215 12R, B29C 2700

Patent

active

040111229

ABSTRACT:
The disclosure relates to method and apparatus for producing a base article, such as a container, with a shrunken, surface covering of plastic thereon. While conveyed in axial registry with each other, a sleeve form of shrinkable plastic is telescopically assembled onto the article by a cam-operated push-up element and held in place until the article and sleeve enter a heating device for applying heat to a relatively narrow, bank-like region of the sleeve about the article causing the plastic of that region to shrink into gripping engagement with the article to hold the sleeve in place until the next step of the process, e.g. the total heat shrinking of the sleeve on the article. The heating device structure is comprised of opposed elongated nozzles through which hot air of 200.degree.-900.degree. F is applied in a narrow horizontal pattern. The article is conveyed between the opposed nozzles, and during travel therethrough the article is rotated.

REFERENCES:
patent: 3542229 (1970-11-01), Beyerlein et al.
patent: 3604584 (1971-09-01), Shenk
patent: 3607496 (1971-09-01), Kissell
patent: 3760968 (1973-09-01), Amberg et al.
patent: 3767496 (1973-10-01), Amberg et al.
patent: 3802942 (1974-04-01), Amberg et al.

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