Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Envelope sealing type
Patent
1987-10-30
1989-10-24
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Envelope sealing type
1564415, 156443, 156578, 156227, 493420, 493421, 118253, B31F 100
Patent
active
048759651
ABSTRACT:
Apparatus for folding and sealing seriatim a supply of documents into envelopes, each of the documents containing water-activated adhesive on at least one portion thereof. The apparatus comprises a hopper for storing a supply of the documents, means for applying moisture to a portion of the documents, and a pair of folding rollers for imparting a fold to the documents. The apparatus further includes a buckle chute for stopping the forward progress of the documents and causing the documents to enter the nip of the folding rollers, means mounted on the buckle chute for applying moisture to a interior portion of the documents, a pair of ironing rollers located downstream of the folding rollers for maximizing adhesive contact of the documents and forming the envelopes, and conveying/curing means located downstream of the ironing rollers for holding the envelope together during transport prior to their release for further processing.
REFERENCES:
patent: '799989 (1989-01-01), Marzullo
patent: 1832376 (1931-11-01), Frisch
patent: 3511013 (1970-05-01), Pahlitzsch
patent: 3995808 (1976-12-01), Kehoe
patent: 4428794 (1984-01-01), Hayskar et al.
patent: 4668212 (1987-05-01), Kotani
patent: 4701233 (1987-10-01), Beck et al.
Aftergut Jeff H.
Ball Michael W.
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
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