Substantially frictionless and static-free former and feed tube

Details Substantially frictionless and static-free former and feed tube Substantially frictionless and static-free former and feed tube

1990-07-13

1991-02-12

Spruill, Robert L.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

53451, 53551, 53575, B65B 908

Patent

active

049913794

ABSTRACT:
An apparatus for forming bags from a thin plastic film in a tube form fill operation wherein plastic film is fed over the outer surface of the tube and the edges of the film are joined to provide a bag tube and an antistatic friction reduction surface treatment is provided on the outer surface of the tube for encouraging sliding movement of the film and insuring uniform feed with the friction reducing and electrically insulating material in the form of a plastic coating or ribs to produce the desired result.

REFERENCES:
patent: 2200360 (1940-05-01), Heres
patent: 3348355 (1967-10-01), Jennings
patent: 3779836 (1973-12-01), Henry et al.
patent: 4442656 (1984-04-01), Wylie, Sr.
patent: 4566250 (1986-01-01), Matsumura et al.
patent: 4617683 (1986-10-01), Christoff
patent: 4640083 (1987-02-01), Takahashi et al.
patent: 4709533 (1987-12-01), Ausnit
patent: 4711068 (1987-12-01), Dominguez
patent: 4922361 (1990-05-01), Bordignon

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