Package making – Methods – With contents treating
Patent
1985-04-30
1988-03-15
Culver, Horace M.
Package making
Methods
With contents treating
53434, 53455, 53479, 53481, 53511, 53512, 53373, B65B 3106, B65B 4304, B65B 4320
Patent
active
047304391
ABSTRACT:
The present invention relates to a unique method and apparatus for packaging a product in individual vacuum-sealed packets constructed of a sheet of flexible material. In the method of the present invention, a sheet of flexible packaging material is formed into a channel-shaped member having spaced apart vertical sidewalls. The facing surfaces of the sidewalls are sealed at horizontally spaced apart, vertical locations to define a plurality of open top packets. A predetermined amount of a flowable product is introduced into each of the open top packets. Next, the upper corner portions of each individual packet are sealed to reduce the size of the opening in the packets. A vacuum tube is introduced into the open top packet and the upper portion of the open top packet is sealed around the vacuum tube. The interior of the packet is then evacuated through the vacuum tube and an initial horizontal top seal is produced below the vacuum tube to initially seal the packet. Finally, the vacuum tube is retracted and a final horizontal top seal is produced above the initial top seal.
REFERENCES:
patent: 2329360 (1943-09-01), Salfisberg
patent: 2691259 (1954-10-01), Weckesser
patent: 2691857 (1954-10-01), Harker
patent: 2751732 (1956-06-01), Woppman
patent: 2754644 (1956-07-01), Vergobbi et al.
patent: 2885846 (1959-05-01), Harker
patent: 3057129 (1962-10-01), Meissner
patent: 3097459 (1963-07-01), Rausch
patent: 3289387 (1966-12-01), Stagmeier et al.
patent: 3382644 (1968-05-01), Vogt
patent: 3516223 (1970-06-01), Andersen et al.
patent: 3545983 (1970-12-01), Woods
patent: 3553934 (1971-01-01), Johnson et al.
patent: 3871157 (1975-03-01), Domke et al.
patent: 3930350 (1976-01-01), Reid
patent: 4216639 (1980-08-01), Gautier
patent: 4418513 (1983-12-01), Plahm
Chung Dennis E.
Chung Yun H.
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