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IPC Main Group
F27D 3/00

Charging; Discharging; Manipulation of charge

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
FURNACES; KILNS, OVENS OR RETORTS
Subclass:
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

Related Keywords

CHARGING of furnacesDISCHARGING of furnacesmanipulators for charging FURNACESMANIPULATORS for handling charges in furnacesPEEL(S) for furnaces

10 direct subcodes

Child Classifications

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  • F27D 3/02 Skids or tracks for heavy objects
  • F27D 3/04 Ram or pusher apparatus
  • F27D 3/06 Charging or discharging machines on travelling carriages
  • F27D 3/08 Screw feeders; Screw dischargers
  • F27D 3/1 Charging directly from hoppers or shoots
  • F27D 3/12 Travelling or movable supports or containers for the charge
  • F27D 3/14 Charging or discharging liquid or molten material
  • F27D 3/15 Tapping equipment; Equipment for removing slag
  • F27D 3/16 Introducing a fluid jet or current into the charge
  • F27D 3/18 Charging particulate material using a fluid carrier

Top Applicants

Top 10 applicants by patent filingsfor class F27, 2013–2023, worldwide · Source: EPO PATSTAT

  1. POSCO (POHANG IRON AND STEEL COMPANY) KR 885
  2. ZHONGYE CHANGTIAN INTERNATIONAL ENGINEERING COMPANY 670
  3. JFE STEEL 621
  4. JFE STEEL JP 492
  5. PAUL WURTH LU 418
  6. OUTOTEC (FINLAND) FI 346
  7. CHINA ENFI ENGINEERING CORPORATION 328
  8. THYSSEN KRUPP DE 310
  9. JINCHUAN GROUP 279
  10. NIPPON STEEL CORPORATION 262