Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Reexamination Certificate
2007-06-04
2011-12-27
Hug, Eric (Department: 1741)
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
C162S901000
Reexamination Certificate
active
08083899
ABSTRACT:
A belt (4) for a shoe press is disposed for rotational movement between a press roll (2) and a shoe (3). The belt (4) includes a shoe-side layer (21), a base layer (22) disposed on an outer circumferential surface of the shoe-side layer (21), and a wet paper web-side layer (25) disposed on an outer circumferential surface of the base layer (22). The base layer (22) has a pair of reinforcing bases (11). The reinforcing layers (11) are disposed circumferentially in a warpwise direction in given regions (E1) corresponding respectively to shoe edges (10) on the opposite sides in a widthwise direction of the shoe (3). The rigidity of belt portions of shoe edge abutment regions (E1) on opposite sides in the widthwise direction of the shoe (3) is partially increased to increase bending stresses and crack resistance of the belt.
REFERENCES:
patent: 4229254 (1980-10-01), Gill
patent: 4238287 (1980-12-01), Gill
patent: 5943951 (1999-08-01), Muellner
patent: 6116156 (2000-09-01), Schiel et al.
patent: 6932888 (2005-08-01), Matuschczyk et al.
patent: 7185757 (2007-03-01), Ishino et al.
patent: 2004/0112561 (2004-06-01), Watanabe et al.
patent: 2005-307421 (2005-11-01), None
patent: WO 02/48456 (2002-06-01), None
patent: WO 02/090649 (2002-11-01), None
patent: WO 2005/024128 (2005-03-01), None
International Search Report for International Application No. PCT/JP2007/061269 dated Aug. 14, 2007.
Hug Eric
Ichikawa Co. Ltd.
Kratz Quintos & Hanson, LLP
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