(0)F27D:0/0:
IPC6
SECTION F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS;BLASTING
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR...
F27D
1/1

F 27 D

 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 F 23)
 

Note
 

Attention is drawn to the references and Notes following the title of class F 27 and Note III following the Contents of Section of section H.

 

 

 
 

 1
/ 00 Casings; Linings; Walls; Roofs (refractory materials C 04 B; firebridges for combustion chambers F 23 M 3/00)

1
/ 02 • Crowns; Roofs  

1
/ 04 • characterised by the form of the bricks or blocks used  

1
/ 06 • • Composite bricks or blocks  

1
/ 08 • • • Bricks or blocks with internal reinforcement or metal backing  

1
/ 10 • Monolithic linings; Supports therefor  

1
/ 12 • incorporating cooling arrangements (constructions of tube assemblies in general F 28)  

1
/ 14 • Supports for linings (F 27 D 1/10 takes precedence)  

1
/ 16 • Making or repairing linings  

1
/ 18 • Door frames; Doors, lids, removable covers  
 

 3
/ 00 Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B 65 G 49/00; moving charge through a furnace F 27 B 9/14)

3
/ 02 • Skids or tracks for heavy objects  

3
/ 04 • Ram or pusher apparatus  

3
/ 06 • Charging or discharging machines on travelling carriages  

3
/ 08 • Screw feeders; Screw dischargers  

3
/ 10 • Charging directly from hoppers or shoots  

3
/ 12 • Travelling or movable supports or containers for the charge  

3
/ 14 • Charging or discharging liquid or molten material  

3
/ 15 • Tapping equipment; Equipment for removing slag  

3
/ 16 • Introducing a fluid jet or current into the charge (F 27 D 3/18 takes precedence) [3]  

3
/ 18 • Charging particulate material using a fluid carrier [3]  
 

 5
/ 00 Supports, screens, or the like for the charge within the furnace (travelling or movable supports F 27 D 3/12)
 

 7
/ 00 Forming, maintaining, or circulating atmospheres in heating chambers

7
/ 02 • Supplying steam, vapour, gases, or liquids  

7
/ 04 • Circulating atmospheres by mechanical means  

7
/ 06 • Forming or maintaining special atmospheres or vacuum within heating chambers (F 27 D 7/02 takes precedence)  
 

 9
/ 00 Cooling of furnaces or of charges therein (F 27 D 1/00, F 27 D 3/00 take precedence)
 

 11
/ 00 Arrangement of elements for electric heating in or on furnaces (electric heating per se H 05 B)

11
/ 02 • Ohmic resistance heating  

11
/ 04 • • with direct passage of current through the material being heated  

11
/ 06 • Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer  

11
/ 08 • Heating by electric discharge, e.g. arc discharge  

11
/ 10 • • Disposition of electrodes (automatic control of temperature G 05 D 23/00; electric discharge apparatus H 01 T; arrangements for feeding or guiding electrodes H 05 B 7/10; automatic control of power by positioning of electrodes H 05 B 7/144) [3]  

11
/ 12 • with electromagnetic fields acting directly on the material being heated  
 

 13
/ 00 Apparatus for preheating charges; Arrangements for preheating charges
 

 15
/ 00 Handling or treating discharged material; Supports or receiving chambers therefor

15
/ 02 • Cooling  
 

 17
/ 00 Arrangement for using waste heat (heat-exchangers per se F 28); Arrangement for using, or disposing of, waste gases (removing fumes in general B 08 B 15/00)
 

 19
/ 00 Arrangement of controlling devices
 

 21
/ 00 Arrangement of monitoring devices; Arrangements of safety devices

21
/ 02 • Observation or illuminating devices  

21
/ 04 • Arrangements of indicators or alarms  
 

 23
/ 00 Details or accessories not covered by any preceding group

23
/ 02 • Devices for removing incrustations  

23
/ 04 • Stirring devices for molten material (mixing in general B 01 F) [3]