B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
  
SEPARATING; MIXING
 B01 - 
B09

Note(s)

The following notes are meant to assist in the use of this part of the classification scheme; they must not be read as modifying in any way the elaborations.

  1. In this sub-section, the separation of different materials, e.g. of different matter, size, or state, is predominantly found in the following subclasses:

    B01D
    B03B, B03C, B03D
    B04B, B04C,
    B07B, B07C.

  2. The classifying characteristics of these subclasses are:
    1. the physical state of the matter to be separated;
    2. the principle of the process used;
    3. particular kinds of apparatus.

      The first of these characteristics involves six different aspects, assembled in three groups:

      1. liquid/liquid or liquid/gas and gas/gas;
      2. solid/liquid or solid/gas;
      3. solid/solid.

  3. These subclasses are to be used according to the following general rules:
    It should also be noted that the separation of isotopes of the same chemical element is covered by B01D 59/00, whatever process or apparatus is employed.
  4. The following scheme illustrates the classification according to these rules.

 B06
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
 B06B
METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC OR ULTRASONIC FREQUENCY FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B 1/40, B23Q 17/12, B24B 31/06; measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves G01H; in direction finding, locating, distance or velocity measuring G01S; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells sirens, whistles, G10K; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers H04R)  [2]