|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F04 |
Subsection index
MACHINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

LIGHTING; HEATING

|  | F26 |
DRYING

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

|  | F26B |
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 Fulltext... Hierarchy... Expanded...C12S. [5]

|  | F26B |
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