Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Patent
1996-08-29
1999-04-06
Crispino, Richard
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
156470, 1565838, B30B 1534, F26B 1300
Patent
active
058913025
ABSTRACT:
An apparatus for curing the web bonding adhesive and drying the corrugated paperboard web utilizes a top heating module contacting the upper face surface of the paperboard web for simultaneously heating the paperboard web along with a series of lower heating units. The top heating module includes of a series of internal heating elements. The heating elements are preferably tubes which receive a supply heated gas or liquid and transfer the heat contained therein to a heat exchange fluid within the module. The heat from the heat exchange fluid is then transferred to the paperboard web through a web-conforming contact member. As the paper-board passes through the double backer, the combination of the top heating module and the lower heating units cure the adhesive bonds in the paperboard web. The web-conforming contact member preferably comprises a thin metal membrane and the heat exchange fluid is a liquid. Heat transfer and uniform contact is achieved by hydrostatic pressure of the liquid acting through the membrane against the web.
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patent: 4935082 (1990-06-01), Bennett et al.
patent: 5256240 (1993-10-01), Shortt
patent: 5561918 (1996-10-01), Marschke
Patent Abstracts of Japan, English Language Abstract of JP 56-057885.
Crispino Richard
Marquip Inc.
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