Tool for deep-drawing and sealing open plastics shells

Details Tool for deep-drawing and sealing open plastics shells Tool for deep-drawing and sealing open plastics shells

1994-07-12

1996-07-16

Warden, Robert J.

Plastic article or earthenware shaping or treating: apparatus

Preform assembly means and means for bonding of plural...

Reshaping means utilizing fluid pressure directly contacting...

425508, 425388, B29C 6518

Patent

active

055361633

ABSTRACT:
A tool for deep-drawing and sealing open plastics shells (3, 3') has a shell-like metal body (2, 2') which includes a flat edge (11, 11') at the open side. A heat insulating attachment is secured to the edge of the metal body so that the outer seam of a first plastic shell can be joined by sealing, to the outer seam of a second plastic shell oppositely disposed to it without supplying additional heat.

REFERENCES:
patent: 2282423 (1942-05-01), Kopitke
patent: 3256565 (1966-06-01), Alesi, Jr. et al.
patent: 3654013 (1972-04-01), Willsie et al.
patent: 4801347 (1989-01-01), Garwood
patent: 5158786 (1992-10-01), Reil et al.

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