Cutting instruments

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6571665
APP PUB NO 20020083598A1
SERIAL NO

09962978

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A process for making a cutting instrument includes cutting a blank from a plate or strip of Type 60 Nitinol, having a thickness of between 0.005'-0.500' using an abrasive waterjet, wire electron discharge machining or laser cutting, and grinding top and bottom surfaces of the blank by rotating a grinder having cubic boron nitride or diamond abrasive particles on a cutting surface of said grinder against the knife blank at a surface speed of about 5000 to 7000 surface feet per minute and grinding to a depth of about 0.001 to 0.005 inches per pass to remove material along the blade surface. The surface of the blade is polished to a surface finish smoother than 20 microinches RMS using Turkish emery abrasive grinding/polishing materials on a buffing wheel driven by a high power motor. The blade is then finish polished to a mirror-like luster of 2 microinches RMS or less using a fine diamond buffing compound and a buffing wheel running at about 3000 RPM. An edge is ground into the polished blade blank using an Arkansas stone grinder.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NITINOL TECHNOLOGIES INC11812-21ST STREET EAST EDGEWOOD WA 98372

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Julien, Gerald J Puyallup, WA 26 894

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