Envelope flap opener apparatus

Details Envelope flap opener apparatus Envelope flap opener apparatus

1996-09-04

1998-03-24

Coan, James F.

Package making

Means to open or erect receptacle

Means to open envelope

533815, 533821, 533811, 53 69, 53468, 493450, 493256, 493 12, B65B 4326

Patent

active

057299544

ABSTRACT:
A flap opening apparatus wherein envelopes are sequentially conveyed past a jet nozzle, which delivers timed blasts of air to open the flaps of each envelope. A computer controller tracks the position of the envelopes by a shaft encoder, and activates the jet nozzle when each envelope is correctly positioned. The opened flaps of the envelopes are held in an open position by a plate so that mail materials may be inserted into the envelopes.

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patent: 2569219 (1951-09-01), Bamber et al.
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patent: 3858381 (1975-01-01), Huber et al.
patent: 4296068 (1981-10-01), Hoshino
patent: 4551188 (1985-11-01), Schulze
patent: 4781013 (1988-11-01), DePasquale et al.
patent: 4811547 (1989-03-01), Raats et al.
patent: 4994129 (1991-02-01), Nakagaki
patent: 5282350 (1994-02-01), Crowley
patent: 5327705 (1994-07-01), DeFigueiredo
patent: 5511357 (1996-04-01), Ricketts et al.

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