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| SECTION B– PERFORMING OPERATIONS; TRANSPORTING |
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| B 04 | CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES |
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| B 04 C | APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES (jet mills B 02 C 19/06; cyclonic type combustion apparatus F 23) |
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| Note |
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| This subclass covers apparatus for separating, mixing or like treating in which centrifugal effects are generated by free vortex flow, otherwise than by rotary bowls, rotors or curved passages. |
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1/ | 00 | Apparatus in which the main direction of flow follows a flat spiral |
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3/ | 00 | Apparatus in which the axial direction of the vortex remains unchanged |
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3/ | 02 | . | with heating or cooling, e.g. quenching, means |
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3/ | 04 | . | Multiple arrangement thereof |
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3/ | 06 | . | Construction of inlets or outlets to the vortex chamber |
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5/ | 00 | Apparatus in which the axial direction of the vortex is reversed |
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5/ | 02 | . | Construction of inlets by which the vortex flow is generated (fluid dynamics in general F 15 D) |
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5/ | 04 | . | . | Tangential inlets |
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5/ | 06 | . | . | Axial inlets |
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5/ | 08 | . | Vortex chamber constructions |
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5/ | 081 | . | . | Shapes or dimensions |
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5/ | 085 | . | . | with wear-resisting arrangements |
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5/ | 087 | . | . | with flexible gas-tight walls |
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5/ | 10 | . | . | with perforated walls |
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5/ | 103 | . | . | Bodies or members, e.g. bulkheads, guides, in the vortex chamber (cores B 04 C 5/107) |
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5/ | 107 | . | . | Cores; Devices for inducing an air-core in hydrocyclones (forming part of the outlet pipe B 04 C 5/13) |
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5/ | 12 | . | Construction of the overflow ducting, e.g. diffusing or spiral exits |
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5/ | 13 | . | . | formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow |
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5/ | 14 | . | Construction of the underflow ducting; Apex constructions; Discharge arrangements |
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5/ | 15 | . | . | with swinging flaps or revolving sluices; Sluices; Check-valves |
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5/ | 16 | . | . | with variable-size outlets from the underflow ducting |
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5/ | 18 | . | . | with auxiliary fluid assisting discharge |
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5/ | 181 | . | . | Bulkheads or central bodies in the discharge opening |
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5/ | 185 | . | . | Dust collectors |
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5/ | 187 | . | . | . | forming an integral part of the vortex chamber |
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5/ | 20 | . | with heating or cooling, e.g. quenching, means |
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5/ | 22 | . | with cleaning means |
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5/ | 23 | . | . | using liquids |
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5/ | 24 | . | Multiple arrangement thereof |
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5/ | 26 | . | . | for series flow |
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5/ | 28 | . | . | for parallel flow |
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5/ | 30 | . | . | Recirculation constructions in or with cyclones which accomplish a partial recirculation of the medium, e.g. by means of conduits |
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7/ | 00 | Apparatus not provided for in group B 04 C 1/00, B 04 C 3/00 or B 04 C 5/00; Multiple arrangements not provided for in one of the groups B 04 C 1/00, B 04 C 3/00, or B 04 C 5/00; Combinations of apparatus covered by two or more of the groups B 04 C 1/00, B 04 C 3/00, or B 04 C 5/00 |
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9/ | 00 | Combinations with other devices, e.g. fans (with filters B 01 D 50/00) |
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11/ | 00 | Accessories, e.g. safety or control devices, not otherwise provided for (with electrostatic precipitating arrangements B 03 C 3/14) |
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