Envelope closing and sealing apparatus

Sheet-material associating – Associating or disassociating – Sheet associating

Patent

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Details

B65H 3902

Patent

active

057020981

ABSTRACT:
An apparatus is disclosed for closing and sealing the flaps of envelopes that have passed through an inserting machine in which collations of insert material have been inserted into the envelopes, and for detecting whether or not certain envelopes cannot be properly closed and sealed and for separating such envelopes from those that are properly closed and sealed. The apparatus is constructed and arranged such that if insert material is improperly inserted into the envelope such that the flap cannot turn freely about the crease line that connectes the flap to the envelopem, the flap will remain substantially in the flat, extended position it occupies when the envelope enters the closing and sealing apparatus. That position of the flap is sensed and the envelope is then diverted from the normal path of properly closed and sealed envelopes into a collection bin for retreival by an operator.

REFERENCES:
patent: 5029832 (1991-07-01), Orsinger et al.
patent: 5127640 (1992-07-01), Orsinger et al.
patent: 5478063 (1995-12-01), Linder et al.

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