Method and apparatus for filling plastic bags with liquid or par

Details Method and apparatus for filling plastic bags with liquid or par Method and apparatus for filling plastic bags with liquid or par

1974-08-22

1976-06-29

McGehee, Travis S.

Package making

Interrelated or safety controls

53 29, 53180M, 53183, B65B 908

Patent

active

039656420

ABSTRACT:
Formation and liquid-filling of plastic bags is performed in a continuous high speed and low cost process. Plastic film is extruded in tubular form and inflated with air or another gas. The tube is transported along a path of work stations at which the tube is successively: sealed to define a series of inflated sections; filled with liquid, while inflated, by a large size hypodermic-type needle configured to puncture and displace entrapped gas with fill liquid, the displaced gas escaping around the needle; seamed to seal off the needle-hole from the liquid-filled portion of the bag; and cut to separate the individual bags, if desired.

REFERENCES:
patent: 3299603 (1967-01-01), Shaw
patent: 3389534 (1968-06-01), Pendleton
patent: 3495992 (1970-02-01), DeFor
patent: 3561186 (1971-02-01), Pickering

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