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PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE (making dough from cereals directly A21C; preservation or sterilisation of cereals A23B; cleaning fruit A23N; preparation of malt C12C)
Definition statement
This subclass covers:
  • Dry and wet processes for preparing and conditioning grain for milling; apparatus for hulling, husking decorticating, polishing and degerminating grains.
  • Combinations of such processes and apparatus and auxiliary devices therefore.
Informative references
Attention is drawn to the following places, which may be of interest for search:

Preservation of edible seeds, e.g. cereals

Animal feeding-stuffs

Foods or foodstuffs; Their preparation or treatment

Machines for hulling, husking or cracking nuts

Peeling vegetables or fruit

Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts

Separating solids from solids by screening, sieving, sifting, sorting in general

Preparation of starch

Production of fats or fatty oils from raw materials

Preparation of oxygen-containing organic compounds Ethanol, i.e. non-beverage

Drying apparatus in general

Special rules of classification within this subclass

Japanese documents are very important and the Japanese documentation and classification has to be considered for search, especially for rice.

The Japanese FI-classes related to preparing grain for milling are B02B 1/00 to B02B 7/02&109. The corresponding F-term theme code is 4D043 that is useful for searching for adjustment and processing of grain.

Preparing grain for milling or like processes (hulling, husking, decorticating, polishing, removing the awns, or degerming B02B 3/00)
Definition statement
This group covers:

Processes for the pre-treatment of grain prior to milling.

Special rules of classification within this group

Specific apparatus suitable for sifting, sorting, drying of grain which are not explicitly in a cooperating relationship with other grain preparing equipment.

Hulling; Husking; Decorticating (decorticating textile fibres D01B 1/14); Polishing; Removing the awns (in threshing machines A01F 12/42); Degerming
Definition statement
This group covers:

All kind of apparatus for hulling, husking, polishing etc. of grains having discs, rollers, screws or worms, beaters, brushes or combinations thereof or having fluid means.

Grain treatment not otherwise provided for
Definition statement
This group covers:
  • Systems or sequences of operations, combined processes and apparatus for the preparation of grain for milling.
  • Combinations with milling methods or milling devices.
Informative references
Attention is drawn to the following places, which may be of interest for search:

Other milling methods or mills specially adapted for grain; Systems or sequences of operations; Plant

Auxiliary devices
Definition statement
This group covers:
  • Feeding and discharging devices associated with hulling, husking, polishing etc. machines.
  • Sifting and sorting devices associated with hulling, husking, polishing etc. machines.
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Last Modified: 10/11/2013