Method and apparatus for forming a fabricated thermoplastic cont

Details Method and apparatus for forming a fabricated thermoplastic cont Method and apparatus for forming a fabricated thermoplastic cont

1990-04-03

1993-01-05

Kisliuk, Bruce M.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493114, 493158, 493154, 493339, 425393, 264321, 264322, B29C 4300

Patent

active

051766078

ABSTRACT:
A device for forming a rolled rim at the unrimmed mouth of the body of a container having a body which is fabricated from a sheet of an expanded thermoplastic material, the device including a first member with a first annular rim-forming surface, and a second member which is reciprocable relative to the first member. The second member has a second annular rim-forming surface which forms a generally closed rim-forming chamber with the first annular rim-forming surface when the second member is in a first position relative to the first member, the second member being reciprocable to a second position in which the first annular surface and the second annular surface are separated to permit the withdrawal of a container with a rolled rim at the mouth from the first member. The device further includes a transfer mechanism for inserting a container with an unrimmed mouth over a frustoconical portion of the first member to position such container to have a rim rolled in the mouth thereof in such rim-forming chamber and to withdraw a container with a rolled rim at the mouth from the first member. The rim-forming chamber is heated and there need be no relative rotation between the rim-forming chamber and the container during the forming of a rolled rim in the container.

REFERENCES:
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patent: 3065677 (1962-11-01), Loeser
patent: 3134307 (1964-05-01), Loeser
patent: 3673033 (1972-06-01), MacDaniel
patent: 3969173 (1976-07-01), Amberg et al.
patent: 4053346 (1977-10-01), Amberg et al.
patent: 4241848 (1980-12-01), Young
patent: 4281979 (1981-08-01), Doherty et al.
patent: 4409045 (1983-10-01), Busse
patent: 4555296 (1985-11-01), Burtch et al.

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