Solid material comminution or disintegration – Processes – Miscellaneous
Patent
1977-10-12
1978-10-24
Goldberg, Howard N.
Solid material comminution or disintegration
Processes
Miscellaneous
2411692, 2411999, 241DIG27, B02C 1908
Patent
active
041217756
ABSTRACT:
A pulverizer generally includes a bowl for receiving an object to be pulverized and a pestle movable into the bowl for pulverizing the object. This system has been improved by providing a container which has a depression similar in shape to the shape of the bowl which is received in the bowl and the object is pulverized in the depression of the container to prevent the pulverized material from contaminating the bowl. The container has a flap for covering the depression to hold the pulverized material in the depression. The flap is folded over the depression and locked by a suitable locking mechanism. The pestle has a generally convex but truncated downwardly facing surface which generally conforms to the upper surface of the bowl over the major portion of the exterior, and the bottom surface of the pestle is spaced from the bottom surface of the bowl when the pestle is mated in the bowl. A projection extends from the bottom of the pestle for localizing forces from the pestle for initially cracking hard objects, and the projection extends to the bottom surface of the bowl when the major portion of the pestle contacts the upper surface of the bowl. The pestle is rotated by a motor and it is mounted on a support which permits the pestle to be angled in the bowl.
REFERENCES:
patent: 2572378 (1951-10-01), Paul
patent: 2631786 (1953-03-01), Morgan
patent: 3915393 (1975-10-01), Elkins
Levine Bernard
Roseberg Harry G.
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