Envelope opening apparatus

Details Envelope opening apparatus Envelope opening apparatus

1988-09-12

1989-08-01

Culver, Horace M.

Package making

Apparatus for forming or partially forming receptacle and...

Forming by opening or setting up collapsed receptacle

53266A, B65B 4328, B65B 4334

Patent

active

048523348

ABSTRACT:
Apparatus for separating the front and back walls of an envelope. The apparatus includes a supporting frame; a device mounted on the supporting frame for holding an envelope having a back wall, a front wall, and a flap extending from the back wall but not contiguous with the back wall; and an orbital claw assembly mounted in the supporting frame. The claw assembly includes a claw movable in an orbit which positions the tip of the claw at an appropriate time between the front and back walls of the envelope and thereafter further movement of the claw in the orbit causes the claw to separate the front wall from the back wall of the envelope.

REFERENCES:
patent: 1754831 (1930-04-01), Marsh
patent: 3886715 (1975-06-01), Dorer
patent: 4205506 (1980-06-01), Moens et al.
patent: 4253292 (1981-03-01), Lipes
patent: 4337609 (1982-07-01), Foster et al.
patent: 4674258 (1987-06-01), Ehlscheid et al.

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