Cutters – for shaping – Comprising tool of specific chemical composition
Reexamination Certificate
2005-10-19
2008-11-04
Fridie, Willmon (Department: 3724)
Cutters, for shaping
Comprising tool of specific chemical composition
C407S113000, C029S557000
Reexamination Certificate
active
07445409
ABSTRACT:
The invention is directed to a cutting tool assembly that include multiple diamonds to define multiple cutting tips. A first diamond is positioned in the cutting tool assembly to create a first groove in a microreplication tool and a second diamond is positioned in the cutting tool assembly to create a second groove the microreplication tool, wherein the first and second grooves define integer pitch spacing of a microreplication structure to be created using the microreplication tool. In addition, a third diamond is positioned in the cutting tool assembly between the first and second diamonds to create a land feature in the microreplication tool between the first and second grooves. The invention can improve land feature creation by using a third diamond tip, rather than leaving the land features untooled and defined by the original untooled surface of micro-replication tool.
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Devore Charles N.
Trice Jennifer L.
3M Innovative Properties Company
Fridie Willmon
Vietzke Lance
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