F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
LIGHTING AND HEATING
 F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
 F23

Note(s)

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

  1. "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 provided for in Section C or in sub-class F24J.
  2. "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.
  3. "Burner" means a device by which fluent fuel is passed to a combustion space where it burns to produce a self-supporting flame.
  4. "Air" means a mixture of gases containing free oxygen and able to promote or support combustion.

 F23G
CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
 F23G

Note(s)

This sub-class includes the burning of low-grade fuel of solid, liquid, or gaseous nature.

 F23G 1/00
Furnaces for cremation of human or animal carcasses
 F23G 3/00
Incinerators for use in buildings
 F23G 3/02
·  with supplementary heating
 F23G 3/04
·  ·  electric heating
 F23G 3/06
·  ·  using gaseous or liquid fuel
 F23G 5/00
Incinerators for town refuse (steam generation F22)
 F23G 5/02
·  with pretreatment other than drying
 F23G 5/04
·  with preliminary drying grates (drying without combustion F26B)
 F23G 5/06
·  with rotating drums
 F23G 5/08
·  with supplementary heating
 F23G 5/10
·  ·  electric heating
 F23G 5/12
·  ·  using gaseous or liquid fuel
 F23G 7/00
Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
 F23G 7/02
·  for burning bagasse or megasse
 F23G 7/04
·  for burning waste liquors, e.g. sulphite liquor from paper-making plant
 F23G 7/06
·  for consuming waste gases or noxious gases, e.g. exhaust gases (exhaust apparatus for machines, engines in general or internal combustion engines F01N)
 F23G 9/00
Incinerators for field or garden refuse