APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ( jet mills B02C19/06; cyclonic type combustion apparatus F23; )

Introduced: September 1968

Description

B04C covers apparatus that exploit natural vortex formation (free vortex flow) to separate or process materials, with cyclones as the primary example. These devices rely on centrifugal forces generated by rotational fluid motion rather than mechanical rotation, making them suitable for gas-solid, liquid-solid, and liquid-liquid separations in industrial applications. Typical technologies include hydrocyclones, dust cyclones, and classifier cyclones used in mining, chemical processing, and environmental control. This subclass excludes mechanically-driven centrifugal equipment covered by B04B.

Title

Titles differ between systems:

IPC: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES

CPC: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ( jet mills B02C19/06; cyclonic type combustion apparatus F23; )

Full Title

Full titles differ between systems:

IPC:

APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES

CPC:

APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ( jet mills B02C19/06; cyclonic type combustion apparatus F23; )

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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B04C 1/00 Apparatus in which the main direction of flow follows a flat spiral IPC+CPC Available in IPC and CPC
B04C 11/00 Accessories, e.g. safety or control devices, not otherwise provided for (with electrostatic precipitating arrangements B03C3/14) IPC+CPC Available in IPC and CPC
B04C 3/00 Apparatus in which the axial direction of the vortex remains unchanged +2 CPC IPC+CPC Available in IPC and CPC
B04C 5/00 Apparatus in which the axial direction of the vortex is reversed IPC+CPC Available in IPC and CPC
B04C 7/00 Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00 IPC+CPC Available in IPC and CPC
B04C 9/00 Combinations with other devices, e.g. fans, (with filters B01D50/00) +6 CPC IPC+CPC Available in IPC and CPC