IPC 6 English version  F26-F26B01526
    F26B 17/00 - F26B 25/22 >> 
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

1/

00

Preliminary treatment of solid materials or objects to facilitate drying

3/

00

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)

3/

02

. 

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

3/

04

. . 

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

3/

06

. . 

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

3/

08

. . . 

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

3/

084

. . . . 

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

3/

088

. . . . 

using inert thermally-stabilised particles [5]

3/

092

. . . . 

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

3/

097

. . . . 

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

3/

10

. . 

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

3/

12

. . . 

in the form of a spray

3/

14

. . 

the materials or objects to be dried being moved by gravity

3/

16

. . . 

in a counter-flow of the gas or vapour

3/

18

. 

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

3/

20

. . 

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

3/

22

. . 

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

3/

24

. . . 

the movement being rotation

3/

26

. . . 

the movement being performed by gravity

3/

28

. 

by radiation, e.g. from the sun

3/

30

. . 

from infra-red-emitting elements

3/

32

. 

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

3/

34

. . 

by using electrical effects

3/

347

. . . 

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

3/

353

. . . 

Resistance heating [4]

3/

36

. . 

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

5/

00

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)

5/

02

. 

by using ultrasonic vibrations

5/

04

. 

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

5/

06

. . 

the process involving freezing

5/

08

. 

by centrifugal treatment

5/

10

. . 

the process involving freezing

5/

12

. 

by suction

5/

14

. 

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

5/

16

. 

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

7/

00

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

9/

00

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

9/

02

. 

in buildings (special types of buildings E 04 H)

9/

04

. 

in presses or clamping devices

9/

06

. 

in stationary drums or chambers

9/

08

. . 

including agitating devices

9/

10

. 

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

11/

00

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

11/

02

. 

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

11/

04

. . 

rotating about a horizontal or slightly-inclined axis

11/

06

. . . 

with stirring devices which are held stationary

11/

08

. . 

rotating about a vertical or steeply-inclined axis

11/

10

. . . 

with stirring devices which are held stationary

11/

12

. 

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

11/

14

. . 

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

11/

16

. . 

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

11/

18

. 

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

11/

20

. . 

with stirring devices which are held stationary

11/

22

. 

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

13/

00

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

13/

02

. 

with movement in a straight line

13/

04

. . 

using rollers

13/

06

. 

with movement in a sinuous or zig-zag path

13/

08

. . 

using rollers

13/

10

. 

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

13/

12

. . 

Regulating movement, tension, or position of material

13/

14

. . 

Rollers (sorbent surfaces F 26 B 13/26)

13/

16

. . . 

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

13/

18

. . . 

heated; cooled

13/

20

. . 

Supporting materials by fluid jets, e.g. air

13/

22

. . 

Arrangements of gas flames

13/

24

. 

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

13/

26

. . 

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

13/

28

. . 

for applying pressure; for brushing; for wiping

13/

30

. . 

for applying suction, e.g. through perforated rollers

15/

00

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/

02

. 

with movement in the whole or part of a circle

15/

04

. . 

in a horizontal plane

15/

06

. . . 

involving several planes, one above the other

15/

08

. . 

in a vertical plane

15/

10

. 

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

15/

12

. . 

the lines being all horizontal or slightly inclined

15/

14

. . . 

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

15/

16

. . . 

the objects or batches of materials being carried by wheeled trucks

15/

18

. . . 

the objects or batches of materials being carried by endless belts

15/

20

. . 

the lines being all vertical or steeply inclined

15/

22

. . . 

the objects or batches of materials being carried by endless belts

15/

24

. . . . 

in a zig-zag path

15/

26

. 

with movement in a helical path
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