F-Term-List

F27B1/00-1/28;3/00-3/28

AA00
TYPES OF VERTICAL, HEARTH, OR ARC FURNACES

AA01

AA02

AA03

AA04

AA05

AA06

AA07

AA08

AA09

AA10

. Vertical furnaces

. . Blast furnaces or cupolas for reduction, dissolution, or refining

. Hearth furnaces

. . Combustion or electrical furnaces for reduction, dissolution, or refining

. . . Rotary furnaces for steel manufacturing or copper refining

. . Holding furnaces or heat-maintaining furnaces

. . Heating furnaces or heat treatment furnaces

. Vertical or hearth-type sintering furnaces

. Vertical or hearth-type burning or ceramic art furnaces

. Vertical or hearth-type air heating or drying furnaces

BA00
MATERIALS BEING TREATED

BA01

BA02

BA03

BA05

BA06

BA07

BA08

BA10

. Metallic materials

. . Steels, cast irons, sub-materials, cokes, or charcoal-containing materials

. . Non-ferrous metals (e.g., aluminum, copper, or zinc)

. Inorganic materials

. . Limestone cement materials, minerals, or refractory materials

. . Slag, dust, or ash

. . Pottery, roof tiles, glass, ceramics, or dental materials

. Organic materials (e.g., wastes or polluted sludge)

CA00
ACCESSORY EQUIPMENT OR DEVICES

CA01

CA02

CA04

CA05

CA06

CA08

CA10

. Carrying devices (e.g., cranes, turn tables, or carts)

. Air supply or exhaust ducts, valves, or dust treatment equipment

. Equipment related to powder storage tank construction

. . Slittering devices for powder granules

. . Distribution devices or force feeding devices for powder granules

. Equipment related to hole openings (e.g., for tap holes or tuyeres)

. Tap-hole-blocking devices

DA00
CONTROL, DETECTION, MONITORING, WARNING DEVICES, OR METHODS THEREOF

DA01

DA02

DA03

DA04

DA05

DA06

DA07

DA09

DA10

. Operations-related devices or methods

. . Detection or control of electric energy or combustion fuel volume

. . Weight detection or control

. . Temperature detection or control

. . Pressure detection or control

. . Detection or control of flow rate or speed

. . Detection or control of layer depth or thickness of treated materials

. Safety or maintenance related devices or methods

. . Detection or control of leakage or clogging

F27B1/00-1/16;1/20-1/21;1/26

GA00
VERTICAL FURNACE BODIES OR REFRACTORY MATERIALS

GA01

GA02

GA03

GA04

GA05

GA06

GA08

GA10

. Furnace body characteristics

. . Multi-stage furnace construction

. . Inclined furnace construction

. . Multiple-chamber furnace construction

. . Structures that change the radial cross section of the furnace

. . Structures that divide furnace into blocks and assemblies

. Furnace-body accessory devices (e.g., lids, hearth lifts, or rotary devices)

. Sealing devices or prevention of cold blast intake into furnace

GA11

GA12

GA13

GA15

GA16

GA17

GA19

. Refractory material characteristics

. . Materials having induction passages or guide grooves at the bottom

. . . Refractory material structures for tap conduits or melt conduits

. . Material- or gas-flow distribution by means of inner walls or furnace bulkheads

. . . Structures promoting generation of rotary flow

. . Items related to refractory constructions having tuyeres, blow holes, or suction holes

. . Refractory structures having fire grates or support plates for articles being treated

GB00
HEATING, CHURNING, OR COOLING DEVICES OR METHODS

GB01

GB02

GB03

GB04

GB05

GB07

GB08

GB09

GB10

. Devices or methods using electric power

. . Devices or methods using arc or plasma heating

. . . Devices or methods related to mounting of electrodes or plasma devices

. . Devices or methods using resistance heating

. . Devices or methods using induction heating

. Devices or methods using fuels (e.g., ignition devices)

. . Devices or methods using burner combustion devices

. . Preheating combustion air by means of exhaust gases or articles being treated

. . Combustion of combustible material inside articles being treated

GB11

GB12

GB13

GB15

GB16

GB17

GB19

GB20

. Blowing air, oxygen, or fuel by using lances

. . Use of charcoal as a fuel or a reduction material

. Drying or preheating of raw materials by using exhaust gases or burners

. Devices or methods related to hot blast tuyeres

. . Devices or methods relating to the structure or manufacture of tuyeres

. . . Devices for replacement of tuyere materials

. Devices or methods for churning or circulating powder granules or of pools

. Devices or methods for cooling articles being treated

GC00
CHARGING DEVICES OR METHODS

GC01

GC02

GC03

GC04

GC05

GC07

GC08

GC09

. Devices or methods relating to raw material charging

. . Devices or methods relating to the distribution of raw materials (e.g. flow rate, direction, or distribution)

. . . Distribution via valves (e.g. rotation, circulation, or elevation)

. . . Distribution via position or inclination of impact or adjusting boards

. . . Distribution via cones, including distribution of cone materials

. . Devices or methods relating to exhaust pressure or seals (e.g., sealing valves)

. . Devices or methods related to measuring (e.g., mounting of load cells and the like)

. . Pressure blowing of raw material (i.e. blowing from tuyeres, nozzles, or the like)

GC11

GC12

GC13

GC15

GC16

GC17

GC19

. Charging devices for furnace tops

. . Charging via circulation or distribution chutes

. . . Drive devices for rotation, circulation, or tilting

. . Devices or methods related to shape or structure of bunkers

. . Devices or methods related to cooling of devices

. . Devices or methods related to abrasion resistance liners

. Accessory devices for charging devices (e.g., bridging prevention devices, presses, or the like)

GD00
DISCHARGE DEVICES OR METHODS

GD01

GD02

GD03

GD04

GD06

GD08

. Devices or methods relating to pool discharge

. . Devices or methods for separation of pool and slag

. . . Siphon-type tapping means

. . Articles related to construction of tap holes or launders

. . Devices or methods for tapping and storing of the pool by components

. . Devices or methods related to slag discharge

GD11

GD12

GD13

GD14

GD16

GD17

GD18

GD20

. Devices or methods related to powder granule discharge

. . Discharge via multiple discharge holes

. . Conveyor-type discharge devices (e.g. screw conveyors)

. . Valve-type discharge devices (e.g., cones and the like)

. . Discharge via rotation or reciprocation

. . . Transport via rotation of arms, scrapers, or gears

. . . Rotation or circulation of powder-granule-receiving beds

. . Discharge via pulverizing devices

F27B1/18

KA00
DUST COLLECTION DEVICES AND METHODS FOR VERTICAL FURNACES

KA01

KA02

KA04

KA06

KA08

. Dust-collecting devices or gas-purification devices

. . Electric dust-collecting devices

. . Dust-collecting device construction or components

. . Dust-spread prevention, dust seals, or area-encircling bodies

. . Devices and methods related to prevention or cleaning of dust accumulation

F27B1/22

LA00
HEAT-EXCHANGE DEVICES AND METHODS

LA01

LA02

LA03

LA05

LA07

LA09

. Collection and use of heat energy from exhaust gases

. . Devices and methods making use of drying or preheating of gases or materials supplied in furnaces

. . Methods making use of steam-generating or electricity-generating devices

. Construction with heat exchange using fluidized beds, pipes, or the like

. Heat-blast-generating devices

. Devices and methods making use of pool heat

F27B1/24

MA00
FURNACE COOLING DEVICES OR METHODS

MA01

MA02

MA03

MA04

MA06

MA08

. Liquid cooling

. . Water cooling structures (e.g., water cooling pipes, jackets, or the like)

. . . Cooling plates (e.g., staves, cooling boxes, cooling tubes, or the like)

. . . . Combinations of cooling plates and fire resistant articles

. . Structures that cool by sprinkling of water

. Gas cooling devices or methods

F27B1/28

NA00
MEASURING DEVICES OR METHODS WITHIN FURNACES

NA01

NA02

NA03

NA04

NA05

NA07

NA09

. Measurement of temperature, pressure, components, or layer thickness

. . Measurement via charging sensors

. . . Measurement via vertical sensors

. . . Measurement via horizontal sensors

. . . . Measurement via fusion (combustion) band charging sensors

. . Leading edges of sensor lances

. . Leading edges of tuyeres

F27B3/00-3/28

RA00
FURNACE BODIES OR REFRACTORY MATERIALS OF HEARTH AND ARC FURNACES

RA01

RA02

RA03

RA04

RA05

RA06

RA07

RA09

RA10

. Furnace body characteristics

. . Rotary or horizontal cylindrical-type structures

. . . Inclined structures

. . Furnace-body support elements

. . Reciprocation or circulation via elevation, horizontal rotation, or dollies

. . Furnace walls or structural elements that facilitate water or air cooling

. . Furnace bodies divided into blocks or assemblies

. Devices attached to furnace bodies (e.g. furnace lids, doors, or maintenance devices)

. Sealing devices that prevent penetration of cool air blast into furnaces

RA11

RA12

RA14

RA16

RA17

RA18

RA19

. Operation via linkages of multiple independent furnace bodies

. Single furnace bodies using partitioning walls to construct multiple furnace chambers

. Adjustment of pool temperature or components via preheating of the ladle or heating in the ladle

. Characteristics related to refractory materials

. . Adjustment of hot water flow rate by movement of refractory material pieces

. . Movable or fixed drift plates or heat blocking constructions

. . Tap conduits or melt conduits

RB00
DEVICES OR METHODS FOR HEATING, DRYING, OR AGITATING

RB01

RB02

RB03

RB04

RB05

RB06

RB08

. Devices or methods using electric power

. . Devices or methods using arc or plasma heating

. . . Multiple furnace bodies with single furnace transformers

. . Devices or methods using resistance heating

. . Devices or methods using induction heating

. . Devices or methods using electron beam heating

. . Electrodes of all types, plasma torches, conductor-connection structures, or the like

RB11

RB12

RB13

RB14

RB16

RB17

RB19

RB20

. Devices or methods using fuels

. . Devices or methods using burner combustion devices

. . . Construction of burners

. . . Preheating combustion atmosphere via exhaust gases or materials being processed

. . Blowing of air, oxygen, or fuels by lances

. . . Blowing of fuels or fluids from furnace-floor nozzles

. Dipping heaters (i.e. insertion of heating wires or burners into protective pipes)

. Devices or methods using infrared rays or radiation heating

RB21

RB22

RB23

RB24

RB26

RB27

RB29

. Preheating of raw materials via exhaust gases or burners

. . Preheating in single or multiple furnaces

. . Preheating in exclusive preheating vessels separate from furnaces

. Prevention of exhaust gas pollution (e.g., burning or dissipation of malodorous heat)

. Heating or heat treatment in vacuums or in pressurized atmospheric gases

. Drying of treated articles via heated gases or air

. Agitation or circulation of powder granules or of pools

RC00
DEVICES AND METHODS OF FURNACE CHARGING OR DISCHARGING

RC01

RC02

RC03

RC04

RC06

RC08

RC10

. Furnace charging with raw materials

. . Charging using pushing devices

. . Charging using cranes or carrying devices

. . Charging using inclining, tilting, elevating, or rolling devices

. . Blowing of raw materials using gas as a carrier

. . Charging of raw materials under heated water

. . Adjustment of distribution of charged raw materials in furnaces

RC11

RC12

RC14

RC16

RC17

RC18

RC19

RC20

. Devices and methods relating to discharge of articles being treated

. . Devices and methods for tapping from furnace floors

. . Tap holes facing each other in multiple furnace operations

. . Siphon-tapping devices and methods thereof

. . Tapping-pump devices and methods

. . Furnace-tilting devices and methods thereof

. . Discharge of solid substances

. . Removal or discharge of undesirable substances

4K045	Vertical, hearth, or arc furnaces
	F27B1/00 -3/28