Envelope feeder and integral flap opening device

Details Envelope feeder and integral flap opening device Envelope feeder and integral flap opening device

1997-06-16

1999-10-26

Skaggs, H. Grant

Sheet feeding or delivering

Special articles

Envelope

271 35, 271106, 533817, B65H 500

Patent

active

059713852

ABSTRACT:
A device that opens the flap of an envelope before the envelope is separated from the envelope supply/stack hopper. A vacuum/suction device is used to pull the envelope flap below a stripping surface before the envelope is fed out of the supply/stack hopper. Thus, the envelope flap will be completely opened as each envelope is individually separated and fed out of the hopper.

REFERENCES:
patent: 1724199 (1929-08-01), Hoag
patent: 3051286 (1962-08-01), Stange et al.
patent: 3973767 (1976-08-01), Kramer
patent: 4106762 (1978-08-01), Faltin
patent: 4318265 (1982-03-01), Orsinger et al.
patent: 4328962 (1982-05-01), Akers
patent: 4542895 (1985-09-01), Blumle
patent: 5249705 (1993-10-01), Gates
patent: 5450187 (1995-09-01), Pei et al.

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