Apparatus and method for applying adhesive for book binding and independent adhesive roller speed control
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United States of America Patent
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-
Jul 23, 1996
Issued Date -
N/A
app pub date -
Apr 25, 1994
filing date -
Nov 27, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A book binding process and apparatus are shown wherein polyurethane adhesive (PUR) attaches a crepe portion of a book binding to a book block and hot glue attaches the crepe portion to the book cover. The PUR delivery system includes an inclined trough positioned adjacent a polyurethane adhesive delivery roll. A polyurethane adhesive source delivers polyurethane adhesive upon the inclined surface of the trough and the polyurethane adhesive is metered onto the roller as a function of the separation of the leading edge of the trough and the roller.
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Family
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Cited Art Landscape
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