Solid material comminution or disintegration – Apparatus – Comminuting surface provided with openings to permit...
Patent
1975-04-14
1976-10-12
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Apparatus
Comminuting surface provided with openings to permit...
B02C 1812
Patent
active
039853047
ABSTRACT:
In food processing apparatus having a working bowl with a motor-driven shaft extending vertically upwards through the bottom of the bowl and various selected rotary tools having disc-like cutting tool members positioned in the top of the bowl which can be engaged with this shaft for processing food introduced through a feed tube in a cover secured over the bowl during use, improved rotary food processing apparatus is provided preventing the cutting surfaces of the disc-like member from inadvertently coming into contact with the undersurface of the cover. The disc member is provided with one or more rounded bearing elements elevated above the cutting elements by a small amount, for example in the range from 1/32 to 3/32 of an inch. These bearing elements are positioned closely adjacent to the periphery of the disc member, and in one illustrated embodiment the bearing element is formed directly at the periphery, thereby not impeding the feeding of food items to the cutting elements in the disc member. In normal operation the cutting elements clear the cover by a slightly greater amount than the elevation of the bearing elements for example 1/8th of an inch, such that these elevated bearing elements also clear the undersurface of the cover. In the event that the user inadvertently overloads the rotating disc cutting tool in either manner described, these bearing elements advantageously slide against the undersurface of the cover almost effortlessly for holding the cutting elements spaced slightly away from the horizontal undersurface of the cover thereby protecting both the cover and the rotating tool.
REFERENCES:
patent: 2590909 (1952-04-01), Westby et al.
patent: 2678073 (1954-05-01), De Nardis
patent: 3032087 (1962-05-01), Rodwick
patent: 3085607 (1963-04-01), Schottle
patent: 3892365 (1975-07-01), Verdun
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