Machine and method for manufacturing square or flat bottom bags

Details Machine and method for manufacturing square or flat bottom bags Machine and method for manufacturing square or flat bottom bags

1978-08-11

1980-10-28

Spruill, Robert Louis

93 33H, 93 12R, 53567, B31B 3314

Patent

active

042300304

ABSTRACT:
A method and apparatus for the rapid and continuous formation of reinforced flat bottom bags from a substantially endless roll of gussetted tubing.

REFERENCES:
patent: 3094905 (1960-07-01), Haslacher
patent: 3250187 (1963-06-01), Kasting
patent: 3345919 (1965-02-01), Kasting et al.
patent: 3552081 (1971-01-01), Leasure
patent: 3916769 (1975-11-01), Turunen
patent: 3924521 (1975-12-01), Hanson et al.
patent: 3970241 (1976-07-01), Hanson
patent: 3988970 (1976-11-01), Hanson et al.

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