Stock material or miscellaneous articles – Circular sheet or circular blank
Patent
1996-02-02
1998-02-17
Ryan, Patrick
Stock material or miscellaneous articles
Circular sheet or circular blank
428 642, 428 644, 428 652, 428913, 3692751, 369283, 264 133, 2643281, 2643288, B32B 300
Patent
active
057189609
ABSTRACT:
Method and apparatus for forming a first and a second component disk which are bonded together to produce a bonded composite disk, wherein a first mold for forming the first component disk includes first mutually concentric components cooperating to define a molding surface for forming a bonding surface of the first component disk, while a second mold for the second component disk includes second mutually concentric components cooperating to define a molding surface for forming the bonding surface of the second component disk, and wherein the first mutually concentric components are dimensioned such that at least one of first annular boundaries between adjacent ones of the first mutually concentric components, which boundaries are located on the molding surface, has a diameter different from that of the corresponding second annular boundary between adjacent ones of the second mutually concentric components.
REFERENCES:
patent: 4781879 (1988-11-01), Oishi
patent: 4788015 (1988-11-01), Sakai et al.
patent: 5031172 (1991-07-01), Umeda et al.
Evans Elizabeth
Kabushiki Kaisha Meiki Seisakusho
Ryan Patrick
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