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Class Information
Number: 241/88
Name: Solid material comminution or disintegration > Apparatus > Comminuting surface provided with openings to permit discharge of material > Cooperates with moving comminuting surface or member > Cooperates with rotary comminuting member > Provided with special comminuting surfaces or characteristics
Description: Apparatus in which the screen surface is provided with projections or other characteristics which assist in effecting the comminution.

Sub-classes under this class:

Class Number Class Name Patents
241/88.2 And auxiliary imperforate surface (e.g., breakerplate) 3
241/88.1 Perforation bounded by sharp edge 24
241/88.4 Spaced parallel bars (e.g., "grate") 42

Patents under this class:

Patent Number Title Of Patent Date Issued
7213779 Rotary grinder apparatus and method May. 8, 2007
6109551 Cutter apparatus for waste disposal unit Aug. 29, 2000
5731199 Mechanical triturator for biological material Mar. 24, 1998
5692688 Comminuting screen for hammermills Dec. 2, 1997
5673863 Size reduction apparatus for the production of prismatical and particularly cubical particles from cuttable materials Oct. 7, 1997
5503338 Regrind deflectors for hammermills Apr. 2, 1996
4660777 Apparatus for manufacturing flakes Apr. 28, 1987
4629134 Roll crusher Dec. 16, 1986
4593862 Method for the manufacture of chips from mineral, vegetable or embrittled materials and apparatus for carrying out the method Jun. 10, 1986
4585547 Method and apparatus for cleaning coal Apr. 29, 1986
4366929 Process and apparatus for grinding materials Jan. 4, 1983
4069980 Process and apparatus for mechanical separation of a combination of meat and bone into useful fractions Jan. 24, 1978
4061277 Shredder with grate cartridge Dec. 6, 1977
4025001 Process and apparatus for the mechanical separation of a combination of meats and bone May. 24, 1977
4017034 Art of dry milling sorghum and other cereal grains Apr. 12, 1977

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