IPC 6 English version F26B !A-F26B 15/26

F26-F26B01526

SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 26

DRYING

F 26 B

DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM (racks for drying fruit or vegetables A 01 F 25/12; drying foodstuffs A 23; drying hair A 45 D 20/00; body-drying implements A 47 K 10/00; drying household articles A 47 L; drying gases or vapours B 01 D; chemical or physical processes for dewatering or like separating liquids from solids B 01 D 43/00; centrifugal apparatus B 04; drying ceramics C 04 B 33/30; drying yarns or fabrics in association with some other form of treatment D 06 C; drying frames for laundry without heating or positive air circulation, domestic laundry-or spin-driers, wringing or hot pressing laundry D 06 F; furnaces, kilns, ovens F 27)

Note

Processes using enzymes or micro-organisms in order to:

(i)

liberate, separate or purify a pre-existing compound or composition, or to

(ii)

treat textiles or clean solid surfaces of materials

are further classified in subclass C 12 S. [5]

Processes for drying

Preliminary treatment of solid materials or objects to facilitate drying

Drying solid materials or objects by processes involving the application of heat (in specific machines or apparatus F 26 B 9/00 to F 26 B 19/00)

by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air

the gas or vapour circulating over, or surrounding, the materials or objects to be dried (F 26 B 3/14 takes precedence)

the gas or vapour flowing through the materials or objects to be dried (F 26 B 3/14 takes precedence)

so as to loosen them, e.g. to form a fluidised bed

084

with heat exchange taking place in the fluidised bed [5]

088

using inert thermally-stabilised particles [5]

092

agitating the fluidised bed, e.g. by vibrating or pulsating [5]

097

using a magnetic field to stabilise the fluidised bed [5]

the gas or vapour carrying the materials or objects to be dried with it

in the form of a spray

the materials or objects to be dried being moved by gravity

in a counter-flow of the gas or vapour

by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact

the heat source being a heated surface (F 26 B 3/22 takes precedence)

the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration

the movement being rotation

the movement being performed by gravity

by radiation, e.g. from the sun

from infra-red-emitting elements

by development of heat within the materials or objects to be dried

by using electrical effects

347

Electromagnetic heating, e.g. induction heating or heating using microwave energy [4]

353

Resistance heating [4]

by using mechanical effects, e.g. by friction (by using ultrasonic vibration F 26 B 5/02)

Drying solid materials or objects by processes not involving the application of heat (separating liquids from solids by straining B 01 D; replacing liquids in wet solids by other liquids, e.g. water by spirit, B 01 D 12/00; drying by electrophoresis B 01 J)

by using ultrasonic vibrations

by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum

the process involving freezing

by centrifugal treatment

the process involving freezing

by suction

by applying pressure, e.g. wringing; by brushing; by wiping

by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials

Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F 26 B 3/00 or F 26 B 5/00

Machines or apparatus for drying

Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards

in buildings (special types of buildings E 04 H)

in presses or clamping devices

in stationary drums or chambers

including agitating devices

in the open air; in pans or tables in rooms; Drying stacks of loose material

11/

Machines or apparatus for drying solid materials or objects with movement which is non-progressive

11/

in moving drums or other mainly-closed receptacles (F 26 B 11/18 takes precedence)

11/

rotating about a horizontal or slightly-inclined axis

11/

with stirring devices which are held stationary

11/

rotating about a vertical or steeply-inclined axis

11/

with stirring devices which are held stationary

11/

in stationary drums or other mainly-closed receptacles with moving stirring devices (F 26 B 11/22 takes precedence)

11/

the stirring device moving in a horizontal or slightly-inclined plane

11/

the stirring device moving in a vertical or steeply-inclined plane

11/

on or in moving dishes, trays, pans, or other mainly-open receptacles

11/

with stirring devices which are held stationary

11/

on or in stationary dishes, trays, pans, or other mainly-open receptacles, with moving stirring devices

13/

Machines or apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement

13/

with movement in a straight line

13/

using rollers

13/

with movement in a sinuous or zig-zag path

13/

using rollers

13/

Arrangements for feeding, heating, or supporting materials; Regulating movement, tension, or position of materials (heating processes F 26 B 3/00)

13/

Regulating movement, tension, or position of material

13/

Rollers (sorbent surfaces F 26 B 13/26)

13/

perforated (F 26 B 13/18 takes precedence; for applying suction F 26 B 13/30)

13/

heated; cooled

13/

Supporting materials by fluid jets, e.g. air

13/

Arrangements of gas flames

13/

Arrangements of devices using drying processes not involving heating (such processes per se F 26 B 5/00)

13/

using sorbent surfaces, e.g. bands or coverings on rollers

13/

for applying pressure; for brushing; for wiping

13/

for applying suction, e.g. through perforated rollers

15/

Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form (F 26 B 13/00, F 26 B 17/00 take precedence; conveyers in general B 65 G)

15/

with movement in the whole or part of a circle

15/

in a horizontal plane

15/

involving several planes, one above the other

15/

in a vertical plane

15/

with movement in a path composed of one or more straight lines, e.g. compound

15/

the lines being all horizontal or slightly inclined

15/

the objects or batches of materials being carried by trays or racks

15/

the objects or batches of materials being carried by wheeled trucks

15/

the objects or batches of materials being carried by endless belts

15/

the lines being all vertical or steeply inclined

15/

the objects or batches of materials being carried by endless belts

15/

in a zig-zag path

15/

with movement in a helical path

F26B 17/00 - F26B 25/22