Method and apparatus for forming or modifying cutting edges
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United States of America Patent
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-
Jul 16, 1991
Grant Date -
N/A
app pub date -
Mar 16, 1990
filing date -
Sep 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of forming or modifying the cutting edges of razor blades, and apparatus for carrying out the method. The method comprises subjecting a stack of razor blades (12) to ion bombardment from two ion sources (13, 14) in a vacuum chamber (10), the ion sources being located on opposite sides of a plane (15) which lies within the stack and parallel to the major surfaces of the blades and the ion sources having the axes of their ion beams directed at the edges of the razor blades in the stack.
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