Package making – Interrelated or safety controls
Patent
1976-09-07
1977-09-13
Silbaugh, Jan H.
Package making
Interrelated or safety controls
53 22A, 53 29, 264 89, 264 92, B29C 1704, B65B 4308
Patent
active
040473589
ABSTRACT:
The articles are enclosed in pockets, formed and sealed in plastic windows, of a foldable paperboard blank which has window openings on opposite sides of a fold line, the blank being covered on one surface by a heat-deformable and heat-sealable plastic sheet, at least over that area having the openings or windows formed therein. A blank support, a molding station and a blank discharge station are arranged along a linear blank travel path at substantially equal spacings from each other. A carrier is oscillatable in a vertical plane including the center line of the travel path, and carries air-released vacuum pick-up means at longitudinal spacings substantially equal to the spacings between the support and the stations. The carrier is oscillated between a first position and a second position. In the first position, a first vacuum pick-up means grips a blank on the support and a second vacuum pick-up means grips a blank, which has already been heated and has pockets formed therein, at the molding station. As the carrier is moved toward its second position, the blanks are lifted and the first pick-up means heats its supported blank. At the second position, the first pick-up means, which includes male die means, positions its blank over a female die means at the molding station, and the second pick-up means releases its formed blank at the discharge station. The already heated blank at the molding station is vacuum deformed into the female die to form the pockets, is released and the cycle is repeated. A dwell station preferably is positioned between the support and the molding station. An endless chain conveyor is moved past the discharge station and carries removable tables for receiving the formed blank. Articles are placed in the pockets at any point along the endless conveyor, and the blanks, during travel along the conveyor on the tables, are folded over to enclose the article and held in closed position while they are delivered to a turret which is revolved in synchronism with the movement of the endless chain and carries one or more, preferably three, piston and cylinder operated heat sealing dies for sealing the two halves of the blank to each other to seal the article in a pocket. The dies are supplied with dielectric energy only after engagement with the folded blanks. The packaged articles are then released onto a conveyor belt for transport away from the apparatus. The heating means for heating the blank preferably is mounted on the carrier, or may be positioned fixedly at a heating station.
REFERENCES:
patent: 2702411 (1955-02-01), Winstead
patent: 2926385 (1960-03-01), Willson, Jr.
patent: 3075329 (1963-01-01), Swezey et al.
patent: 3357055 (1967-12-01), Swezey
patent: 3394208 (1968-07-01), Lovas et al.
patent: 3488413 (1970-01-01), Watts, Jr.
patent: 3590434 (1971-07-01), Watts, Jr.
patent: 3655940 (1972-04-01), Robinson
patent: 3661484 (1972-05-01), Psota et al.
patent: 3770860 (1973-11-01), Amberg et al.
patent: 3886247 (1975-05-01), Edwards
Hair George R.
Heffernan William
Nielsen John G.
International Inpak Inc.
Parker Sheldon H.
Silbaugh Jan H.
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