Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1987-05-01
1988-11-22
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
493203, 493238, 493341, 493346, 493926, 493931, 206428, 206602, 383 8, 383 38, B31B 2318, B31B 2764
Patent
active
047862750
ABSTRACT:
A method of forming a severable compartmented T-shirt bag comprising heat welding overlying lengths of a flattened tubular web of thermoplastic material centrally therealong to define a compartment to each side of the heat welding and a side edge seam for each compartment, slitting the web material between the compartments and formed seams, and reengaging the seams and forming a tack joinder therebetween to define a line of severance. The method also including the steps of transversely seaming the lengths of web material into individual bag units and forming a central cutout area in each bag unit to define a bag mouth with a handle to each side of the severance line.
REFERENCES:
patent: 3016806 (1962-01-01), Schoen et al.
patent: 3069978 (1962-12-01), Hoeppner
patent: 3607521 (1971-09-01), Suominen
patent: 4318768 (1982-03-01), Johnson
patent: 4332578 (1982-06-01), van der Meulen
patent: 4368051 (1983-01-01), Lehmacher
patent: 4526565 (1985-07-01), Hummel et al.
Informational Pamphlet "Welding Slit Seal System" AMI.
Schmidt Frederick R.
Sonoco Products & Company
Terrell William E.
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