Apparatus for transferring strip-like plastics bag material in p

Details Apparatus for transferring strip-like plastics bag material in p Apparatus for transferring strip-like plastics bag material in p

1980-05-16

1982-06-15

Coan, James F.

Package making

With means responsive to a sensed condition

Of receptacle or cover feed or adjunct feed or application

53385, 53459, 493406, B65B 4312

Patent

active

043343996

ABSTRACT:
This invention provides an apparatus for transferring a strip-like plastic bag material in a packing machine. The apparatus comprises a pair of intermittently operated pinching rollers for intermittently transferring the bag material, said bag material comprising a series of interconnected bags each having a heat-sealed bottom portion with a flap-like margin, a mechanism for raising said flap-like margin during transfer of said bag material, a microswitch for detecting said bottom portion, said microswitch having an elongated contact adapted to be releasably engaged with said flap-like margin as said flap-like margin is raised during transfer of said bag material and means for stopping said bag material in response to detection by said microswitch of said bottom portion.

REFERENCES:
patent: 3477196 (1969-11-01), Lerner
patent: 3754370 (1973-08-01), Hanson
patent: 3956866 (1976-05-01), Lattur

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