Cutting – Rotatable disc tool pair or tool and carrier – Tool pair comprises rotatable tools
Reexamination Certificate
2003-03-06
2008-11-25
Ashley, Boyer D (Department: 3724)
Cutting
Rotatable disc tool pair or tool and carrier
Tool pair comprises rotatable tools
C083S496000, C083S663000, C083S673000, C083S676000
Reexamination Certificate
active
07455004
ABSTRACT:
The apparatus for trimming sheet material includes a top knife and an opposing bottom knife for trimming sheet or web material passing between the top and bottom knives. The top knife defines a negative rake angle with a substantially vertical plane passing through a cutting edge of the bottom knife. The negative rake angle may be between about −10° and −30° and, more preferably, between about −12° and −20°. The top and bottom knives may be disk or block knives.
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Henninger Dennis P.
Li Ming M.
Lu Hongbing
Rushing James M.
Shen Xingyun
Alcoa Inc.
Ashley Boyer D
Flores-Sánchez Omar
Greenberg & Traurig, LLP
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