Package making – Interrelated or safety controls
Patent
1974-12-10
1976-02-03
McGehee, Travis S.
Package making
Interrelated or safety controls
53 21FW, 53 22B, B65B 6302
Patent
active
039356906
ABSTRACT:
A method of packaging a self-inflating air mattress comprising an open cell foam core and an air impervious envelope. A plurality of mattresses are stacked intermittently between forming boards and evacuated. Each bag is then rolled up and placed in a flexible tubular container and the vacuum released on the mattress to provide a sung package. To remove the mattress, the container and mattress are compressed, the inflating valve closed, and the mattress slipped from the container.
REFERENCES:
patent: 3458966 (1969-08-01), Dunbar et al.
patent: 3611524 (1971-10-01), Broyles
patent: 3641726 (1972-02-01), Cassina
Burroughs John D.
Lea James M.
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