(0)F26B:0/2:
IPC6
SECTION F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS;BLASTING
F26B
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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)  
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