Envelope opening apparatus

Details Envelope opening apparatus Envelope opening apparatus

1975-08-29

1977-09-27

McGehee, Travis S.

Package making

Means to open or erect receptacle

Means to open envelope

53188, 53266A, 225 93, 271112, B65B 6900

Patent

active

040502228

ABSTRACT:
Envelope opening apparatus in which envelopes with previously slit top edges are supplied, one at a time, to a conveyor belt at a feeder station and are carried by the conveyor belt to an end slitting station in which each envelope is arrested, the faces of the arrested envelope are spread apart, and a pair of bursting members mounted for rectilinear movement in rectangular paths move downward into the envelope through its pre-slit top edge and outward against the respective envelope ends to burst them. Envelopes whose ends have been broken or burst are moved into successive radial slots of a rotary storage member for holding while the contents of the envelopes are removed and sorted.

REFERENCES:
patent: 2168241 (1939-08-01), Robinson
patent: 2781620 (1957-02-01), Hopkins et al.
patent: 2839880 (1958-06-01), Boughton
patent: 2840964 (1958-07-01), Kissling
patent: 3031186 (1962-04-01), Galloway
patent: 3381447 (1968-05-01), Ash et al.
patent: 3394930 (1968-07-01), Guggisberg
patent: 3691726 (1972-09-01), Stephens et al.
patent: 3888069 (1975-06-01), Pierce et al.

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