F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
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 BY COMBUSTION
 F23G

Note(s)

This subclass covers also the burning of low-grade fuel of solid, liquid, or gaseous nature.

 F23G 1/00
Furnaces for cremation of human or animal carcasses
 F23G 5/00
Incineration of waste (of specific waste F23G 7/00); Incinerator constructions; Details, accessories or control therefor  [4]
 F23G 5/02
·  with pretreatment  [4]
 F23G 5/027
·  ·  pyrolising or gasifying stage (pyrolisation of sludge C02F 11/00; destructive distillation of carbonaceous materials C10B 53/00)  [4]
 F23G 5/033
·  ·  comminuting or crushing  [4]
 F23G 5/04
·  ·  drying  [4]
 F23G 5/05
·  ·  ·  using drying grates  [4]
 F23G 5/08
·  having supplementary heating  [4]
 F23G 5/10
·  ·  electric  [4]
 F23G 5/12
·  ·  using gaseous or liquid fuel (F23G 5/14 takes precedence)  [4]
 F23G 5/14
·  ·  including secondary combustion  [4]
 F23G 5/16
·  ·  ·  in a separate combustion chamber  [4]
 F23G 5/18
·  ·  ·  in a stack  [4]
 F23G 5/20
·  having rotating or oscillating drums  [4]
 F23G 5/22
·  ·  the drums being conically shaped  [4]
 F23G 5/24
·  having a vertical, substantially cylindrical, combustion chamber  [4]
 F23G 5/26
·  ·  having rotating bottom  [4]
 F23G 5/28
·  ·  having raking arms  [4]
 F23G 5/30
·  having a fluidised bed  [4]
 F23G 5/32
·  the waste being subjected to a whirling movement, e.g. cyclonic incinerators  [4]
 F23G 5/34
·  the waste being burnt in a pit or arranged in a heap for combustion  [4]
 F23G 5/36
·  having a conical combustion chamber, e.g. "teepee" incinerators (F23G 5/22 takes precedence)  [4]
 F23G 5/38
·  Multi-hearth arrangements  [4]
 F23G 5/40
·  Portable or mobile incinerators  [4]
 F23G 5/42
·  ·  of the basket type  [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]
 F23G 7/00
Incinerators or other apparatus for consuming industrial waste, e.g. chemicals (incinerator closets A47K 11/02; oxidation of sludge C02F 11/06; burners in general, burner details F23D; incinerating radioactive waste G21F 9/00)  [4]
 F23G 7/02
·  of bagasse, megasse or the like  [4]
 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 machines, engines in general or internal combustion engines F01N; of uncombusted material from primary combustion of solid or fluent fuel F23B 5/00, F23C 9/00)  [4]
 F23G 7/08
·  ·  using flares, e.g. in stacks  [4]
 F23G 7/10
·  of field or garden waste  [4]
 F23G 7/12
·  of plastics, e.g. rubber  [4]
 F23G 7/14
·  of contaminated soil, e.g. by oil  [4]