Apparatus for forming a denesting lip on paperboard containers

Details Apparatus for forming a denesting lip on paperboard containers Apparatus for forming a denesting lip on paperboard containers

1987-01-09

1988-08-02

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493141, 493158, 493183, B31B 164

Patent

active

047611561

ABSTRACT:
Apparatus for forming a denesting lip in paperboard containers by folding, heating, and sealing or tacking a side extension flap to form a denesting lip for nested stacks of such containers. The denesting apparatus includes a pair of pressure pads which guide the paperboard container onto the apparatus and prevent the container from sliding off the apparatus while the denesting operation is performed. The apparatus also includes a multiplanar mandrel pad for forming a bottom closure that is flat on its exterior surface.

REFERENCES:
patent: 2446798 (1948-08-01), Vergobbi
patent: 2745323 (1956-05-01), Monroe et al.
patent: 3039368 (1962-06-01), Simpson
patent: 3229595 (1966-01-01), Waycie
patent: 3547012 (1969-02-01), Amberg et al.
patent: 3971300 (1976-07-01), Bachner
patent: 4302275 (1981-11-01), Burmeister et al.
patent: 4498585 (1985-02-01), Gordon et al.
patent: 4601425 (1986-07-01), Bachner

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