Abrading – Rigid tool – Stationary
Patent
1996-07-08
1997-12-23
Rose, Robert A.
Abrading
Rigid tool
Stationary
451558, 76 82, 76 88, B24D 1508
Patent
active
057001898
ABSTRACT:
A blade-sharpening apparatus for knives and other cutting tools which uses a ceramic sharpening element. The sharpening element is a recycled aluminum oxide sodium vapor streetlight bulb. The vapor and heat expansion and contraction of the bulb during use as a light causes wear on the bulb and results in the ceramic element becoming more porous, thereby providing an abrasive surface suitable for blade sharpening. A first embodiment of the apparatus comprises a housing with a support substantially along a length of the sharpening element and a cover for enclosing the sharpening element when not in use. In the first embodiment, the sharpening element is supported on both ends. In a second embodiment, the sharpening element is supported on one end by a handle and a sleeve is provided to enclose the sharpening element when not in use. The sleeve may be attached to a portion of the handle opposite the sharpening element when in an operating position.
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General Electric General Catalog 7730, dated Mar., 1981, entitled "Lucalox.RTM. Ceramic Tubing".
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