|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

SEPARATING AND MIXING

|  | B04 |
CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES (using centrifugal force for the separation of particles from liquids or gases, in general Fulltext... Hierarchy... Expanded...B01D, e.g. Fulltext... Hierarchy... Expanded...B01D 21/26, Fulltext... Hierarchy... Expanded...B01D 43/00, Fulltext... Hierarchy... Expanded...B01D 45/12)

|  | B04B |
CENTRIFUGES (high-speed drum mills Fulltext... Hierarchy... Expanded...B02C 19/11; domestic spin driers Fulltext... Hierarchy... Expanded...D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant sub-classes for these procedures, e.g. Fulltext... Hierarchy... Expanded...G01N)

|  | B04B |
Note(s) This sub-class deals with machines or apparatus for separating, mixing, drying, extracting, purifying, or like treating in which centrifugal effects are generated by rotary bowls or other rotors. Where such machines or apparatus involve pumping effects, such effects must be incidental or subsidiary to the treating.

|  | B04B 1/00 - B04B 5/00 |
Types of centrifuges; Centrifuges characterised by discharging means

|  | B04B 1/00 |
Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles

|  | B04B 1/02 |
· | without inserted separating walls

|  | B04B 1/04 |
· | with inserted separating walls

|  | B04B 1/06 |
· · | of cylindrical shape

|  | B04B 1/08 |
· · | of conical shape

|  | B04B 1/10 |
· | with discharging outlets in the plane of the maximum diameter of the bowl

|  | B04B 1/12 |
· · | with continuous discharge

|  | B04B 1/14 |
· · | with periodical discharge

|  | B04B 1/16 |
· · · | with discharging outlets controlled by the rotational speed of the bowl

|  | B04B 1/18 |
· · · · | controlled by the centrifugal force of an auxiliary liquid

|  | B04B 1/20 |
· | discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl

|  | B04B 3/00 |
Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering

|  | B04B 3/02 |
· | discharging solid particles from the bowl by means co-axial with the bowl axis and moving to and fro, i.e. push-type centrifuges

|  | B04B 3/04 |
· | discharging solid particles from the bowl by a conveying screw co-axial with the bowl axis and rotating relatively to the bowl

|  | B04B 3/06 |
· | discharging solid particles by vibrating the bowl

|  | B04B 3/08 |
· | discharging solid particles by bowl walls in the form of endless bands

|  | B04B 5/00 |
Other centrifuges

|  | B04B 5/02 |
· | Centrifuges consisting of a plurality of separate bowls rotating round an axis situated between the bowls

|  | B04B 5/04 |
· | Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers

|  | B04B 5/06 |
· | Centrifugal counter-current apparatus

|  | B04B 5/08 |
· | Centrifuges for separating predominantly gaseous mixtures

|  | B04B 5/10 |
· | Centrifuges combined with other apparatus, e.g. electrostatic separators; Sets or systems of several centrifuges (Fulltext... Hierarchy... Expanded...B04B 5/12 takes precedence; magnetic or electrostatic separators Fulltext... Hierarchy... Expanded...B03C) [2]

|  | B04B 5/12 |
· | Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers

|  | B04B 7/00 - B04B 15/00 |
Elements; Accessories

|  | B04B 7/00 |
Elements of centrifuges (drives Fulltext... Hierarchy... Expanded...B04B 9/00; feeding, charging, or discharging appurtenances or devices Fulltext... Hierarchy... Expanded...B04B 11/00)

|  | B04B 7/02 |
· | Casings; Lids (shock absorbers, vibration dampers Fulltext... Hierarchy... Expanded...F16F)

|  | B04B 7/04 |
· · | Casings facilitating discharge

|  | B04B 7/06 |
· · | Safety devices

|  | B04B 7/08 |
· | Rotary bowls (centrifugal casting machines Fulltext... Hierarchy... Expanded...B22D)

|  | B04B 7/10 |
· · | Bowls for shaping solids

|  | B04B 7/12 |
· · | Inserts, e.g. armouring plates

|  | B04B 7/14 |
· · · | for separating walls of conical shape

|  | B04B 7/16 |
· · · | Sieves or filters (filters in general Fulltext... Hierarchy... Expanded...B01D; sieves in general Fulltext... Hierarchy... Expanded...B07B)

|  | B04B 7/18 |
· · | formed or coated with sieving or filtering elements (filters in general Fulltext... Hierarchy... Expanded...B01D; sieves in general Fulltext... Hierarchy... Expanded...B07B)

|  | B04B 9/00 |
Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls

|  | B04B 9/02 |
· | Electric motor drives

|  | B04B 9/04 |
· · | Direct drive

|  | B04B 9/06 |
· | Fluid drive

|  | B04B 9/08 |
· | Arrangement or disposition of transmission gearing

|  | B04B 9/10 |
· | Control of the drive; Speed regulating

|  | B04B 9/12 |
· | Suspending rotary bowls

|  | B04B 9/14 |
· | Balancing rotary bowls (balancing per se Fulltext... Hierarchy... Expanded...G01M)

|  | B04B 11/00 |
Feeding, charging, or discharging bowls (Fulltext... Hierarchy... Expanded...B04B 1/00, Fulltext... Hierarchy... Expanded...B04B 3/00, Fulltext... Hierarchy... Expanded...B04B 7/04 take precedence)

|  | B04B 11/02 |
· | Continuous feeding or discharging; Control arrangements therefor

|  | B04B 11/04 |
· | Periodical feeding or discharging; Control arrangements therefor

|  | B04B 11/05 |
· · | Base discharge

|  | B04B 11/06 |
· | Arrangement of distributers and collectors in centrifuges

|  | B04B 11/08 |
· | Skimmers and scrapers for discharging

|  | B04B 13/00 |
Control arrangements specially designed for centrifuges; Programme control of centrifuges (control arrangements for feed, charge, or discharge Fulltext... Hierarchy... Expanded...B04B 11/00)

|  | B04B 15/00 |
Other accessories for centrifuges

|  | B04B 15/02 |
· | for cooling, heating, or heat insulating

|  | B04B 15/04 |
· | for suppressing the formation of foam

|  | B04B 15/06 |
· | for cleaning bowls, filters, sieves, inserts, etc.

|  | B04B 15/08 |
· | for ventilating or producing a vacuum in the centrifuge

|  | B04B 15/10 |
· | for forming a filtering layer in the rotary bowl

|  | B04B 15/12 |
· | for drying or washing the separated solid particles