Arrangement for opening plastic bags in automatic packaging mach

Details Arrangement for opening plastic bags in automatic packaging mach Arrangement for opening plastic bags in automatic packaging mach

1979-06-06

1981-02-17

McGehee, Travis S.

Package making

Apparatus for forming or partially forming receptacle and...

Forming by opening or setting up collapsed receptacle

53385, B65B 4336

Patent

active

042506948

ABSTRACT:
The invention relates to an arrangement for opening plastic bags and retaining same in open position during the operation of automatic packaging machines. It comprises a hopper, funnel or the like, a source for an air jet which blows air into the opened bag through an air nozzle, a stack of bags stored vertically and below the product supply and a hoop of semicircular cross-section made of wire, strip of metal or plastic adapted to engage said opened bag and being rotatably mounted in a supporting mechanism adjacent to the supply of said bag.

REFERENCES:
patent: 2307990 (1943-01-01), Briggs
patent: 3468100 (1969-09-01), Rubel
patent: 3727374 (1973-04-01), Williams
patent: 3783580 (1974-01-01), Raudys
patent: 4172349 (1979-10-01), Lipes

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