F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
LIGHTING; HEATING
F26
DRYING
F26B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM (drying devices for combines A01D 41/133; racks for drying fruit or vegetables A01F 25/12; drying foodstuffs A23; drying hair A45D 20/00; body-drying implements A47K 10/00; drying household articles A47L; drying gases or vapours B01D; chemical or physical processes for dewatering or like separating liquids from solids B01D 43/00; centrifugal apparatus B04; drying ceramics C04B 33/30; drying yarns or fabrics in association with some other form of treatment D06C; drying frames for laundry without heating or positive air circulation, domestic laundry-or spin-driers, wringing or hot pressing laundry D06F; furnaces, kilns, ovens F27)

Note(s)

  • Processes using enzymes or micro-organisms in order to:
    • liberate, separate or purify a pre-existing compound or composition, or to
    • treat textiles or clean solid surfaces of materials

    are further classified in subclass C12S.

Subclass index
PROCESSES FOR DRYING
Preliminary treatment 1/00
Processes: with heat; without heat; by combination of both types 3/00, 5/00, 7/00
MACHINES OR APPARATUS FOR DRYING
With articles to be dried at rest or locally agitated, domestic airing 9/00
With non-progressive movement 11/00
With progressive movement: for fabrics or yarns; for articles and compact batches; for material not in compact batches 13/00, 15/00, 17/00
Other kinds 19/00
Combinations using at least two of the above kinds 20/00
ARRANGEMENTS OR DETAILS OF GENERAL APPLICATIONS
Arrangements for air or gas for drying; heating 21/00, 23/00
Other details 25/00
Processes for drying
F26B 1/00
Preliminary treatment of solid materials or objects to facilitate drying
F26B 3/00
Drying solid materials or objects by processes involving the application of heat (in specific machines or apparatus F26B 9/00-F26B 19/00)
F26B 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
F26B 3/04
•
•
the gas or vapour circulating over, or surrounding, the materials or objects to be dried (F26B 3/14 takes precedence)
F26B 3/06
•
•
the gas or vapour flowing through the materials or objects to be dried (F26B 3/14 takes precedence)
F26B 3/08
•
•
•
so as to loosen them, e.g. to form a fluidised bed
F26B 3/084
•
•
•
•
with heat exchange taking place in the fluidised bed [5]
F26B 3/088
•
•
•
•
using inert thermally-stabilised particles [5]
F26B 3/092
•
•
•
•
agitating the fluidised bed, e.g. by vibrating or pulsating [5]
F26B 3/097
•
•
•
•
using a magnetic field to stabilise the fluidised bed [5]
F26B 3/10
•
•
the gas or vapour carrying the materials or objects to be dried with it
F26B 3/12
•
•
•
in the form of a spray
F26B 3/14
•
•
the materials or objects to be dried being moved by gravity
F26B 3/16
•
•
•
in a counter-flow of the gas or vapour
F26B 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
F26B 3/20
•
•
the heat source being a heated surface (F26B 3/22 takes precedence)
F26B 3/22
•
•
the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration
F26B 3/24
•
•
•
the movement being rotation
F26B 3/26
•
•
•
the movement being performed by gravity
F26B 3/28
•
by radiation, e.g. from the sun
F26B 3/30
•
•
from infra-red-emitting elements
F26B 3/32
•
by development of heat within the materials or objects to be dried
F26B 3/34
•
•
by using electrical effects
F26B 3/347
•
•
•
Electromagnetic heating, e.g. induction heating or heating using microwave energy [4]
F26B 3/353
•
•
•
Resistance heating [4]
F26B 3/36
•
•
by using mechanical effects, e.g. by friction (by using ultrasonic vibration F26B 5/02)
F26B 5/00
Drying solid materials or objects by processes not involving the application of heat (separating liquids from solids by straining B01D; replacing liquids in wet solids by other liquids, e.g. water by spirit, B01D 12/00; drying by electrophoresis B01J)
F26B 5/02
•
by using ultrasonic vibrations
F26B 5/04
•
by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
F26B 5/06
•
•
the process involving freezing
F26B 5/08
•
by centrifugal treatment
F26B 5/10
•
•
the process involving freezing
F26B 5/12
•
by suction
F26B 5/14
•
by applying pressure, e.g. wringing; by brushing; by wiping
F26B 5/16
•
by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
F26B 7/00
Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B 3/00 or F26B 5/00
Machines or apparatus for drying
F26B 9/00
Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
F26B 9/02
•
in buildings (special types of buildings E04H)
F26B 9/04
•
in presses or clamping devices
F26B 9/06
•
in stationary drums or chambers
F26B 9/08
•
•
including agitating devices
F26B 9/10
•
in the open air; in pans or tables in rooms; Drying stacks of loose material
F26B 11/00
Machines or apparatus for drying solid materials or objects with movement which is non-progressive
F26B 11/02
•
in moving drums or other mainly-closed receptacles (F26B 11/18 takes precedence)
F26B 11/04
•
•
rotating about a horizontal or slightly-inclined axis
F26B 11/06
•
•
•
with stirring devices which are held stationary
F26B 11/08
•
•
rotating about a vertical or steeply-inclined axis
F26B 11/10
•
•
•
with stirring devices which are held stationary
F26B 11/12
•
in stationary drums or other mainly-closed receptacles with moving stirring devices (F26B 11/22 takes precedence)
F26B 11/14
•
•
the stirring device moving in a horizontal or slightly-inclined plane
F26B 11/16
•
•
the stirring device moving in a vertical or steeply-inclined plane
F26B 11/18
•
on or in moving dishes, trays, pans, or other mainly-open receptacles
F26B 11/20
•
•
with stirring devices which are held stationary
F26B 11/22
•
on or in stationary dishes, trays, pans, or other mainly-open receptacles, with moving stirring devices
F26B 13/00
Machines or apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
F26B 13/02
•
with movement in a straight line
F26B 13/04
•
•
using rollers
F26B 13/06
•
with movement in a sinuous or zig-zag path
F26B 13/08
•
•
using rollers
F26B 13/10
•
Arrangements for feeding, heating, or supporting materials; Regulating movement, tension, or position of materials (heating processes F26B 3/00)
F26B 13/12
•
•
Regulating movement, tension, or position of material
F26B 13/14
•
•
Rollers (sorbent surfaces F26B 13/26)
F26B 13/16
•
•
•
perforated (F26B 13/18 takes precedence; for applying suction F26B 13/30)
F26B 13/18
•
•
•
heated; cooled
F26B 13/20
•
•
Supporting materials by fluid jets, e.g. air
F26B 13/22
•
•
Arrangements of gas flames
F26B 13/24
•
Arrangements of devices using drying processes not involving heating (such processes per se F26B 5/00)
F26B 13/26
•
•
using sorbent surfaces, e.g. bands or coverings on rollers
F26B 13/28
•
•
for applying pressure; for brushing; for wiping
F26B 13/30
•
•
for applying suction, e.g. through perforated rollers
F26B 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 (F26B 13/00, F26B 17/00 take precedence; conveyers in general B65G)
F26B 15/02
•
with movement in the whole or part of a circle
F26B 15/04
•
•
in a horizontal plane
F26B 15/06
•
•
•
involving several planes, one above the other
F26B 15/08
•
•
in a vertical plane
F26B 15/10
•
with movement in a path composed of one or more straight lines, e.g. compound
F26B 15/12
•
•
the lines being all horizontal or slightly inclined
F26B 15/14
•
•
•
the objects or batches of materials being carried by trays or racks
F26B 15/16
•
•
•
the objects or batches of materials being carried by wheeled trucks
F26B 15/18
•
•
•
the objects or batches of materials being carried by endless belts
F26B 15/20
•
•
the lines being all vertical or steeply inclined
F26B 15/22
•
•
•
the objects or batches of materials being carried by endless belts
F26B 15/24
•
•
•
•
in a zig-zag path
F26B 15/26
•
with movement in a helical path
F26B 17/00
Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement (F26B 13/00 takes precedence)
F26B 17/02
•
with movement performed by belts carrying the materials; with movement performed by belts propelling the materials over stationary surfaces
F26B 17/04
•
•
the belts being all horizontal or slightly inclined (F26B 17/08 takes precedence)
F26B 17/06
•
•
the belts being all vertical or steeply inclined (F26B 17/08 takes precedence)
F26B 17/08
•
•
the belts being arranged in a sinuous or zig-zag path
F26B 17/10
•
with movement performed by fluid currents, e.g. issuing from a nozzle (F26B 3/08 takes precedence) [5]
F26B 17/12
•
with movement performed solely by gravity
F26B 17/14
•
•
the materials moving through a counter-current of gas
F26B 17/16
•
•
the materials passing down a heated surface
F26B 17/18
•
with movement performed by rotating helical blades or other rotary conveyers moving materials in stationary chambers
F26B 17/20
•
•
the axis of rotation being horizontal or slightly inclined
F26B 17/22
•
•
the axis of rotation being vertical or steeply inclined
F26B 17/24
•
with movement performed by shooting or throwing the materials
F26B 17/26
•
with movement performed by reciprocating or oscillating conveyers propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays
F26B 17/28
•
with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve
F26B 17/30
•
with movement performed by rotary or oscillating containers; with movement performed by rotary floors
F26B 17/32
•
•
the movement being in a horizontal or slightly-inclined plane
F26B 17/34
•
•
the movement being in a vertical or steeply-inclined plane
F26B 19/00
Machines or apparatus for drying solid materials or objects not covered by groups F26B 9/00-F26B 17/00
F26B 20/00
Combinations of machines or apparatus covered by two or more of groups F26B 9/00-F26B 19/00
Details of general application
F26B 21/00
Arrangements for supplying or controlling air or gases for drying solid materials or objects (air-conditioning or ventilation in general F24F)
F26B 21/02
•
Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure (F26B 21/14 takes precedence)
F26B 21/04
•
•
partly outside the drying enclosure
F26B 21/06
•
Controlling, e.g. regulating, parameters of gas supply (F26B 21/14 takes precedence)
F26B 21/08
•
•
Humidity
F26B 21/10
•
•
Temperature; Pressure
F26B 21/12
•
•
Velocity of flow; Quantity of flow
F26B 21/14
•
using gases or vapours other than air or steam
F26B 23/00
Heating arrangements (using heated air or gases F26B 21/00)
F26B 23/02
•
using combustion heating (F26B 23/10 takes precedence)
F26B 23/04
•
using electric heating (F26B 23/10 takes precedence)
F26B 23/06
•
•
resistance heating
F26B 23/08
•
•
inductive heating; capacitative heating; microwave heating
F26B 23/10
•
using tubes or passages containing heated fluids
F26B 25/00
Details of general application not covered by group F26B 21/00 or F26B 23/00 (loading, conveying, or unloading in general B65G)
F26B 25/02
•
Applications of driving mechanisms, not covered by another subclass
F26B 25/04
•
Agitating, stirring, or scraping devices
F26B 25/06
•
Chambers, containers, or receptacles
F26B 25/08
•
•
Parts thereof
F26B 25/10
•
•
•
Floors, roofs, or bottoms; False bottoms
F26B 25/12
•
•
•
Walls or sides; Doors
F26B 25/14
•
•
Chambers, containers, receptacles of simple construction
F26B 25/16
•
•
•
mainly closed, e.g. drum
F26B 25/18
•
•
•
mainly open, e.g. dish, tray, pan
F26B 25/20
•
Rollers (F26B 25/06 takes precedence)
F26B 25/22
•
Controlling the drying process in dependence on liquid content of solid materials or objects