Machine for sealing cups

Details Machine for sealing cups Machine for sealing cups

1986-09-29

1988-04-12

Coan, James F.

Package making

Closing packages and filled receptacles

Separate closure applying

53290, B65B 728

Patent

active

047365684

ABSTRACT:
A web of heat-sealable material is advanced in overlying relation with a row of filled cups to a sealing station where both the web and a cup dwell momentarily. During the dwell period, a head at the sealing station advances downwardly and successively tamps a disc-like portion of the web downwardly into the upper end portion of the cup, seals the outer periphery of the disc-like portion to and around the upper lip of the cup and then severs the disc-like portion from the web so as to leave the cup sealed with a flexible membrane.

REFERENCES:
patent: 1652595 (1927-12-01), Weeks et al.
patent: 1780639 (1930-11-01), Burdick et al.
patent: 2025812 (1935-12-01), Enock
patent: 2061577 (1936-11-01), Huyett
patent: 2190509 (1940-02-01), Baum
patent: 4362002 (1982-12-01), Rowland et al.

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