B04B CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N)
Introduced: September 1968
Description
B04B covers centrifuge machines and apparatus designed to separate substances or materials using centrifugal force. This subclass encompasses various centrifuge types including laboratory, industrial, and continuous-operation models used for solid-liquid separation, liquid-liquid separation, and particle classification across chemical, pharmaceutical, food processing, and environmental applications. Related mechanical components such as rotors, bowls, baskets, and drive systems integral to centrifuge operation are included within this classification. Adjacent classes B04C (auxiliary equipment for centrifuges) and broader class B04 (centrifugal apparatus for physical/chemical processes) provide complementary coverage for supporting equipment and non-centrifuge centrifugal machines.
Title
Titles differ between systems:
IPC: CENTRIFUGES
CPC: CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N)
Full Title
Full titles differ between systems:
CENTRIFUGES
CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N)
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B04B 1/00 Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles IPC+CPC Available in IPC and CPC
- B04B 11/00 Feeding, charging, or discharging bowls (B04B1/00, B04B3/00, B04B7/04 take precedence) IPC+CPC Available in IPC and CPC
- B04B 13/00 Control arrangements specially designed for centrifuges; Program control of centrifuges (control arrangements for feed, charge or discharge B04B11/00) +2 CPC IPC+CPC Available in IPC and CPC
- B04B 3/00 Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering IPC+CPC Available in IPC and CPC
- B04B 7/00 Elements of centrifuges (drives B04B9/00; feeding, charging, or discharging appurtenances or devices B04B11/00) +1 CPC IPC+CPC Available in IPC and CPC
- B04B 9/00 Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls IPC+CPC Available in IPC and CPC