Abrading – Machine – Rotary tool
Reexamination Certificate
2009-02-10
2010-11-09
Rose, Robert (Department: 3727)
Abrading
Machine
Rotary tool
C451S045000
Reexamination Certificate
active
07828629
ABSTRACT:
A knife grinder comprises a housing, wherein a grinding mechanism is arranged. A magnetic body is arranged under the grinding mechanism to attract metal scraps. Since the magnetic body is arranged under the opening, the knife grinder allows the metal scraps to be fully attracted to the bottom of the housing, thereby maintaining a clean environment during the grinding process.
REFERENCES:
patent: 2432535 (1947-12-01), McBride
patent: 2549529 (1951-04-01), Sandlin
patent: 2707852 (1955-05-01), Fillweber
patent: 5018310 (1991-05-01), Fierus et al.
patent: 5377563 (1995-01-01), Weeks
Alix Yale & Ristas, LLP
Lico (HK) Manufacturing Ltd.
Rose Robert
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