Cutters – for shaping – File or rasp
Reexamination Certificate
2004-01-07
2008-03-11
Fridie, Jr., Willmon (Department: 3722)
Cutters, for shaping
File or rasp
C407S029130, C407S029140
Reexamination Certificate
active
07341407
ABSTRACT:
A tire rasp blade made with an arcuate shape having a planar body with cutting teeth at the outer working edge. The cutting teeth extend laterally relative to the planar body in alternating sets of curved sections. The curved sections preferably form a sinusoidal curve along the outer working edge. The tire rasp blade is made by initially forming an arcuate blade of planar material that has an outer periphery of varying radii from a center point of the arcuate blade; then cutting teeth are formed at the varying radii of the working edge of the planar material; and then an outer portion of the planar material is deformed laterally in opposite directions to form alternating, oppositely curved sections, with the cutting teeth all lying approximately at the same circumferential radius so that they all contact the tire to be buffed.
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Understanding Retreading, International Tire & Rubber Association Foundation, Inc., 2001.
Fridie Jr. Willmon
Pincott International Pty. Ltd.
Pravel Bernarr R.
Pravel James W.
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