Plastic plate with rolled edge rim and method of making same

Details Plastic plate with rolled edge rim and method of making same Plastic plate with rolled edge rim and method of making same

1996-12-27

1998-06-02

Shoap, Allan N.

Special receptacle or package

Structural features for nesting identical receptacles or...

Having defined means to limit extent of nesting

220574, 220669, 220675, B65D 2102, A47G 1903

Patent

active

057587736

ABSTRACT:
Molded plastic plates having a rolled edge rim and a method of rolling the edges of molded plastic plated. The plastic plates are pre-molded with lugs that project outwardly from the sides of the plates. The lugs of one plate contact the rim of the next successive plate in a stack of plates to create a gap between the plates stacked one on top of another. The gap allows each individual plate to be picked up by the threads on a plurality of threaded rollers which press on the rim of the plate to form the rolled edge.

REFERENCES:
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patent: 1907407 (1933-05-01), Morrison
patent: 3208631 (1965-09-01), Edwards
patent: 3353707 (1967-11-01), Eyles
patent: 3396868 (1968-08-01), Fitzgerald
patent: 3648888 (1972-03-01), Cheladze
patent: 3669305 (1972-06-01), Kinney et al.
patent: 4049122 (1977-09-01), Maxwell
patent: 4542029 (1985-09-01), Caner et al.
patent: 4889231 (1989-12-01), Foote et al.
patent: 4967908 (1990-11-01), Kessler

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