F27D 2021/023
Closable inserting openings
Official title: {Closable inserting openings, e.g. for the introduction of lances, sensors or burners}
F27D2021/023 (Closable inserting openings) appears on 19 US grants and 9 published applications in this corpus.
Search patents in F27D- Granted patents
- 19
- Published applications
- 9
- Assignees
- 18
- Inventors
- 47
- Latest grant
- 30 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of recording images within a furnace using a thermal imaging camera comprising a borescope30 Jan 2024US 11,885,567 B2Johnson Matthey Public Limited Company
- Production apparatus and method for electric arc furnace steelmaking with fully continuous ultra-short process16 Nov 2021US 11,174,524 B1University of Science and Technology Beijing
- Fluid cooled housing system for instruments of a metal making furnace11 Aug 2020US 10,739,073 B2Berry Metal Company
- Motor-less automatic extraction device surveiling inside of furnaces8 May 2007US 7,215,358 B2Youngkook Electronics
- Process for melting sponge iron and electric-arc furnace for carrying out the process5 Nov 2002US 6,477,195 B2Voest-Alpine Industrieanlagenbau GmbH
- Apparatus for inspecting and/or restoring a hostile environment and corresponding method26 Jun 2025US 2025/0207861 A1Danieli Automation S.P.A.
- Method of recording images within a furnace using a thermal imaging camera comprising a borescope14 Jul 2022US 2022/0221225 A1Johnson Matthey Public Limited Company
- Production apparatus and method for electric arc furnace steelmaking with fully continuous ultra-short process18 Nov 2021US 2021/0355554 A1University of Science and Technology Beijing
- Fluid cooled housing system for instruments of a metal making furnace22 Oct 2020US 2020/0333075 A1Berry Metal Company
- Fluid cooled housing system for instruments of a metal making furnace16 May 2019US 2019/0145708 A1Berry Metal Company
Most cited
By later US patents
- Coal charging car for charging chambers in a coke-oven battery114US 6,152,668 AThyssen Krupp Encoke GmbH · 2000
- Closed remelting furnace having several horizontally movable furnace lower portions5US 4,951,298 ALeybold Aktiengesellschaft · 1990
- Plug for a furnace header5US 5,318,074 A1994
- Combustion aiding apparatus for steel-making electric-arc-furnace4US 4,965,813 ANikko Industry Co., Ltd. · 1990
- Process for fitting a gas-injecting nozzle in a wall and means for carrying out this process4US 6,032,870 A2000