Abrading – Machine – Rotary tool
Reexamination Certificate
1999-07-13
2001-02-20
Banks, Derris H. (Department: 3723)
Abrading
Machine
Rotary tool
C451S259000
Reexamination Certificate
active
06190244
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a sharpening arrangement for a knife on a slicer for food products, the knife having a rotating circular blade.
BACKGROUND OF THE INVENTION
A sharpening arrangement should desirably have a number of features:
(a) Safety—the hands of the operator should be kept clear of the knife blade, especially the edge, when sharpening;
(b) Aligmnent—ideally the sharpener should be self-aligning to the knife when in use;
(c) Easy to operate—not complicated nor time consuming to use;
(d) Easy to clean.
SUMMARY Of THE INVENTION
According to the present invention there is provided a sharpener assembly for a rotating circular knife blade on a food product slicing machine, the sharpener assembly comprising an elongate frame mounted at one end thereof for pivotal movement about an axis provided by the food product slicing machine, the axis being substantially in the plane of the knife blade, the elongate frame having mounted for rotation thereon a grinding stone and a deburring stone, the grinding face of the grinding stone being inclined to the knife blade at an angle so as to grind a required angle on the edge of the obverse face of the knife blade, the grinding stone and the deburring stone being mounted so that in use the obverse and reverse faces of the knife blade are respectively engaged.
REFERENCES:
patent: 2665531 (1954-01-01), Sivertsen
patent: 3124185 (1964-03-01), Karp
patent: 3176560 (1965-04-01), Bardenhagen
patent: 3958478 (1976-05-01), Camper
patent: 580431 (1946-09-01), None
patent: 666121 (1952-02-01), None
patent: 951331 (1964-03-01), None
patent: 1500129 (1978-02-01), None
patent: 2252618A (1992-08-01), None
Banks Derris H.
GEC Avery Limited
Kirschstein et al.
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