Seam sealing device and technique

Details Seam sealing device and technique Seam sealing device and technique

1981-08-19

1984-03-20

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Tube making

With advancing of tube axially

53551, 156466, B65B 908

Patent

active

044378530

ABSTRACT:
The present invention includes a heating element which is secured to a rigid member and which is located so that when a plastic like material is being formed into a package or bag, by effecting a seam along the side of the package, the inside of said side seam will be heated, in addition to said outside of said side seam to help provide a better sealed seam.

REFERENCES:
patent: 2899875 (1959-08-01), Leasure
patent: 2979114 (1961-04-01), Milne
patent: 3569665 (1971-03-01), Hager, Jr.
patent: 3575769 (1971-04-01), Radzio
patent: 3795081 (1974-03-01), Brown, Jr. et al.
patent: 4108713 (1978-08-01), Weise
patent: 4274244 (1981-06-01), Gilbert
patent: 4293763 (1981-10-01), McMullan

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