D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
92/21.5
D21F 3/00 (2006.01) B29D 99/00 (2010.01) B29C 37/00 (2006.01) D21F 3/08 (2006.01)
Patent
CA 1240190
ABSTRACT OF THE DISCLOSURE Destruction of the bond of urethane roll covers to metal paper machine rolls is eliminated by venting the interface of the urethane and the metal to the atmosphere. Venting of the interface can be accomplished by drilling small holes through the roll periphery, by applying an adhesive substrate to the roll with grooves exposed to the atmosphere, by providing porous wicks between the roll and cover or by grooving the perhiphery of the roll to provide channels exposed to the atmosphere.
461761
Metso Paper Inc.
Ridout & Maybee Llp
LandOfFree
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