CPC Definition - Subclass F27D
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| DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE (combustion apparatus F23) Definition statement This place covers: Details, accessories of furnaces, kilns or ovens in general, not for specific furnaces, kilns or ovens Relationships with other classification places The details or accessories for specific furnaces, kilns or ovens are classified in F27B subgroups Special rules of classification Indexing Codes should be used as additional information or in case an CPC symbol is given and more detailed Indexing Codes are existing, these more detailed Indexing Codes should also be given. Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) References Informative references Attention is drawn to the following places, which may be of interest for search:
{Linings or walls comprising heat shields, e.g. heat shieldsd (shields protecting the charge F27D 5/00)} References Informative references Attention is drawn to the following places, which may be of interest for search:
Crowns; Roofs References Informative references Attention is drawn to the following places, which may be of interest for search:
Monolithic linings; Supports therefor References Informative references Attention is drawn to the following places, which may be of interest for search:
Supports for linings (F27D 1/10 takes precedence) References Limiting references This place does not cover:
Making or repairing linings {increasing the durability of linings or breaking away linings} References Informative references Attention is drawn to the following places, which may be of interest for search:
Charging; Discharging; Manipulation of charge (moving charge through a furnace F27B 9/14) References Informative references Attention is drawn to the following places, which may be of interest for search:
{of metallic workpieces} References Informative references Attention is drawn to the following places, which may be of interest for search:
{transport or conveyor rolls for furnaces; roller rails (conveyor rolls in general B65G)} References Informative references Attention is drawn to the following places, which may be of interest for search:
Screw feeders; Screw dischargers References Informative references Attention is drawn to the following places, which may be of interest for search:
Tapping equipment; Equipment for removing {or retaining} slag References Informative references Attention is drawn to the following places, which may be of interest for search:
{Taphole forming equipment, e.g. boring machines, piercing tools} References Informative references Attention is drawn to the following places, which may be of interest for search:
Introducing a fluid jet or current into the charge {(porous elements for gas flushing of molten metals B22D 1/005)} References Informative references Attention is drawn to the following places, which may be of interest for search:
Charging particulate material using a fluid carrier References Informative references Attention is drawn to the following places, which may be of interest for search:
Supports, screens, or the like for the charge within the furnace (travelling or movable supports F27D 3/12) References Informative references Attention is drawn to the following places, which may be of interest for search:
{Treatment baskets for ceramic articles (for metallic articles C21D 9/0025)} References Informative references Attention is drawn to the following places, which may be of interest for search:
{Shields for the charge (shields for the lining F27D 1/0033)} References Informative references Attention is drawn to the following places, which may be of interest for search:
Forming, maintaining, or circulating atmospheres in heating chambers References Informative references Attention is drawn to the following places, which may be of interest for search:
Arrangement of elements for electric heating in or on furnaces (electric heating per se H05B) References Informative references Ohmic resistance heating References Informative references Disposition of electrodes (automatic control of temperature G05D 23/00; electric discharge apparatus H01T; arrangements for feeding or guiding electrodes H05B 7/10; automatic control of power by positioning of electrodes H05B 7/144) References Informative references Attention is drawn to the following places, which may be of interest for search:
{Preheating scrap (preheating of scrap for steel making C21C 5/565)} References Informative references Attention is drawn to the following places, which may be of interest for search:
{comprising a cooling grate} Definition statement This place covers: Cooling of discharged material comprising a cooling grate. References Informative references Attention is drawn to the following places, which may be of interest for search:
{Extraction of waste gases, collection of fumes and hoods used therefor (in general B08B 15/00)} References Informative references Attention is drawn to the following places, which may be of interest for search:
{of waste gases emanating from an electric arc furnace} References Informative references Attention is drawn to the following places, which may be of interest for search:
Arrangements of controlling devices References Informative references Attention is drawn to the following places, which may be of interest for search:
Arrangements of monitoring devices; Arrangements of safety devices References Informative references Attention is drawn to the following places, which may be of interest for search:
{comprising breaking tools, e.g. hammers, drills, scrapers (breaking away linings F27D 1/1694; boring machines for forming tapholes F27D 3/1527)} Definition statement This place covers: Devices for removing incrustations, e.g. slag, metal deposits, dust, comprising breaking tools like hammers, drills, scrapers; References Informative references Attention is drawn to the following places, which may be of interest for search:
Stirring devices for molten material (F27D 3/14 takes precedence) References Informative references Attention is drawn to the following places, which may be of interest for search:
Subject matter not provided for in other groups of this subclass Definition statement This place covers: Details or accessories not covered by any preceding group {Electric heating elements or system} References Informative references Attention is drawn to the following places, which may be of interest for search:
{using burners (manufacture of steel in an electric arc furnace equipped with burners C21C 5/5217)} References Informative references Attention is drawn to the following places, which may be of interest for search:
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