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 fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
LIGHTING; HEATING
 F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
 F23

Note(s)

In this class, the following terms or expressions are used with the meanings indicated:

  • "combustion" means the direct combination of oxygen gas, e.g. in air, and a burnable substance. Any other heat-producing combination of chemical substances, e.g. hydrogen peroxide and methane, iron oxide and aluminium, is covered by section C or by subclass F24J;
  • "combustion chamber" means a chamber in which fuel is burned to establish a self-supporting fire or flame and which surrounds that fire or flame;
  • "burner" means a device by which fluent fuel is passed to a combustion space where it burns to produce a self-supporting flame;
  • "air" means a mixture of gases containing free oxygen and able to promote or support combustion.

 F23G
CREMATION FURNACES; CONSUMING WASTE OR LOW GRADE FUELS BY COMBUSTION
 F23G
Subclass index
CREMATION 1/00
CONSUMING WASTE OR LOW-GRADE FUELS BY COMBUSTION
Processes; Functional types of apparatus 5/00
Adaptation for specific waste or fuels 7/00
Details; Accessories 5/44
Control or safety arrangements 5/50
P:0 F23G 1/00
Methods or apparatus specially adapted for cremation of human or animal carcasses
P:20 F23G 5/00
Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels  [4]
 F23G 5/02
·  including pretreatment  [4]
 F23G 5/027
·  ·  pyrolising or gasifying (pyrolisation of sludge C02F 11/00; destructive distillation of carbonaceous materials C10B 53/00)  [4]
 F23G 5/08
·  including supplementary heating  [4]
 F23G 5/14
·  ·  including secondary combustion  [4]
 F23G 5/16
·  ·  ·  in a separate combustion chamber  [4]
 F23G 5/20
·  with combustion in rotating or oscillating drums  [4]
 F23G 5/24
·  with combustion in a vertical, substantially cylindrical, combustion chamber  [4]
 F23G 5/30
·  with combustion in a fluidised bed  [4]
 F23G 5/32
·  in which the waste or low-grade fuel is subjected to a whirling movement, e.g. cyclonic incinerators  [4]
 F23G 5/34
·  in which the waste or low-grade fuel is burnt in a pit or arranged in a heap for combustion  [4]
 F23G 5/36
·  with combustion in a conical combustion chamber, e.g. "teepee" incinerators (F23G 5/20 takes precedence)  [4]
 F23G 5/38
·  having multi-hearth arrangements  [4]
 F23G 5/40
·  Portable or mobile apparatus  [4]
 F23G 5/44
·  Details; Accessories  [4]
 F23G 5/46
·  ·  Recuperation of heat  [4]
 F23G 5/48
·  ·  Preventing corrosion  [4]
 F23G 5/50
·  Control or safety arrangements  [4]
P:10 F23G 7/00
Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals (F23G 1/00 takes precedence; incinerator closets A47K 11/00; oxidation of sludge C02F 11/06; incinerating radioactive waste G21F 9/00)  [4,8]
 F23G 7/04
·  of waste liquors, e.g. sulfite liquors  [4]
 F23G 7/05
·  of waste oils  [4]
 F23G 7/06
·  of waste gases or noxious gases, e.g. exhaust gases (exhaust apparatus for engines with means for rendering the exhaust innocuous, e.g. by thermal or catalytic conversion, F01N 3/08; combustion of uncombusted material from primary combustion within apparatus for combustion of solid or fluent fuel F23B, F23C)  [4]
 F23G 7/12
·  of plastics, e.g. rubber  [4]