Methods of and apparatus for closing bag mouths

Details Methods of and apparatus for closing bag mouths Methods of and apparatus for closing bag mouths

1980-08-14

1983-02-01

Culver, Horace M.

Package making

Apparatus for forming or partially forming receptacle and...

Forming by opening or setting up collapsed receptacle

53573, 53373, B65B 106, B65B 4330, B65B 706, B65B 5114

Patent

active

043708455

ABSTRACT:
The disclosure relates to methods and apparatus for closing a bag mouth of a bag formed from a heat weldable material after filling the bag through the open mouth thereof. The bag mouth is supported from within the mouth by flat elements held apart across the mouth to draw the mouth into an elongate form and then the sides of the mouth are pressed together between an elongate heating element and an elongate anvil and the heating element is activated to heat weld the sides of the mouth together to close the mouth.

REFERENCES:
patent: 2626495 (1953-01-01), Gaubert
patent: 3019583 (1962-02-01), Sylvester et al.
patent: 3529400 (1970-09-01), Takagaki
patent: 3566578 (1971-03-01), Thorne et al.
patent: 3766710 (1973-10-01), Goodwin et al.
patent: 3805489 (1974-04-01), Lieder et al.
patent: 3889449 (1975-06-01), Membrino
patent: 3981121 (1976-09-01), Turunen et al.
patent: 4070853 (1978-01-01), Sanders
patent: 4078358 (1978-03-01), Henderson
patent: 4124966 (1978-11-01), Wilson
patent: 4177621 (1979-12-01), Powell, Jr.
patent: 4214417 (1980-07-01), Lieder

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