Chain saw sharpener with composite wiskar

Details Chain saw sharpener with composite wiskar Chain saw sharpener with composite wiskar

2011-03-08

2011-03-08

Prone, Jason Daniel (Department: 3724)

Metal tools and implements, making

Saw-making or furbishing device or machine

Chain saw sharpener

C076S082000, C076S088000, C030S381000

Reexamination Certificate

active

07900536

ABSTRACT:
A wiskar for sharpening cutting teeth of a chain provided on a chain bar of a chain saw. A housing is removably attached to the chain bar and includes a recess to receive the wiskar therein. The wiskar includes a first member configured to be operationally engaged by the recess of the housing; and a second member configured to frictionally engage a bottom surface of the cutting teeth. The second member includes a body portion intermediate the opposing ends, wherein opposing ends of the second member each have at least one lobe defined therein. Abrasives are uniformly impregnated throughout the first and second member to sharpen the bottom surface of the cutting teeth. At least the second member is manufactured from a pliable material that erodes due to friction caused by the cutting teeth engaging the lobes of the second member.

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