Abrading – Frame or mount – Portable abrader
Patent
1995-11-16
1997-08-26
Eley, Timothy V.
Abrading
Frame or mount
Portable abrader
451349, 451549, 451557, 451558, B24B 2308
Patent
active
056605820
ABSTRACT:
This invention is a tool designed to sharpen rotary cutter blades. In a first embodiment, an inside-threaded clamp is screwed down upon the blade, pressing it tightly against a platform from which a threaded shank rises, and holding the blade from turning. When an upper casing containing an inside angled abrasive strip is lowered over the clamp until contact is made against the blade surface, the abrasive strip is brought into contact with the blade edge. When the upper casing is rotated around the tightened clamp, the abrasive acts upon the blade edge and thereby sharpens the edge. A second embodiment is comprised of a blade holder for holding the cutting blade stationary and a ring member with an abrasive strip which fits around the blade holder such that the abrasive strip contacts the edge of the cutting blade. The blade holder comprises detachable male and female members having base portions for securing the cutting blade and handle portions mounted on the base portions for rotating the blade holder relative to the ring member.
REFERENCES:
patent: 889830 (1908-06-01), Van Berkel
patent: 1165342 (1915-12-01), Peterson
patent: 1957776 (1934-05-01), Gury
patent: 2721430 (1955-10-01), Green
patent: 3315452 (1967-04-01), Rossi
patent: 3349485 (1967-10-01), Bettcher
patent: 4373302 (1983-02-01), Darby
patent: 5031363 (1991-07-01), Thiem
Bode George A.
Eley Timothy V.
Maddux Daniel E.
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