Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Envelope sealing type
Patent
1989-07-25
1992-03-24
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Envelope sealing type
1564422, 156443, 100211, 226198, 271 2, B31F 100
Patent
active
050985116
ABSTRACT:
Apparatus for folding, sealing and aligning seriatim a supply of documents into envelopes, each of the documents containing a water-activated adhesive on a portion thereof. The apparatus includes: a hopper for storing a supply of the documents; a device for applying moisture to a portion of the documents; a pair of folding rollers for imparting a fold to the documents; a buckle chute for stopping the forward progress of the documents and causing the documents to enter the nip of the folding rollers; a pair of ironing rollers located downstream of the folding rollers for maximizing adhesive contact of the documents and forming the envelopes; a conveying device located downstream of the ironing rollers for holding the envelopes together during transport prior to their release for further processing; and a downwardly billowing, flexible membrane situated above the conveying device. The membrane is contiguous with a portion of the conveying device, whereby the membrane is able to contact the envelopes as the envelopes are moved by the conveying device and where the alignment of the moving envelopes is maintained.
REFERENCES:
patent: 1962713 (1934-06-01), Griffith
patent: 2221236 (1940-11-01), Gay
patent: 4799989 (1989-01-01), Marzullo
patent: 4851119 (1989-07-01), Bergloff et al.
patent: 4875965 (1989-10-01), Marzullo
Ball Michael W.
Malandra, Jr. Charles R.
Osele Mark A.
Pitchenik David E.
Pitney Bowes Inc.
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