F23N 5/22
Systems for controlling combustion: with a time program acting through mechanical means
Official title: with a time program acting through mechanical means, e.g. using cams
F23N5/22 (Systems for controlling combustion: with a time program acting through mechanical means) appears on 26 US grants and 12 published applications in this corpus.
Search patents in F23N- Granted patents
- 26
- Published applications
- 12
- Assignees
- 13
- Inventors
- 36
- Latest grant
- 27 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Gas valve with emergency shutoff and mechanical timer27 Jun 2023US 11,686,405 B2
- Valve arrangement for a gas burner27 Dec 2022US 11,536,452 B2Orkli, S. Coop.
- Driving device of stove safety protective equipment16 Feb 2021US 10,920,990 B2
- Gas valve with emergency shutoff and mechanical timer31 Dec 2019US 10,520,108 B2Skytech Products Group
- Apparatus for extinguishing a wick flame of a candle disposed in a candle container and related methods25 Jun 2019US 10,330,317 B2
- Valve arrangement for a gas burner29 Apr 2021US 2021/0123597 A1Orkli, S. Coop.
- Driving device of stove safety protective equipment18 Jun 2020US 2020/0191401 A1
- Gas valve with emergency shutoff and mechanical timer23 Apr 2020US 2020/0124203 A1Skytech Products Group
- Apparatus for extinguishing a wick flame of a candle disposed in a candle container and related methods19 Apr 2018US 2018/0106478 A1
- Gas valve with emergency shutoff and mechanical timer21 Sep 2017US 2017/0268693 A1Skytech Products Group
Most cited
By later US patents
- Timing regulator for outdoor gas apparatus28US 7,089,959 B22006
- Manifold gas valve with stepped flow operation16US 4,060,370 AEmerson Electric Co. · 1977
- Stack damper control safety interlock with lockout prevention15US 4,087,045 AJohnson Controls GmbH · 1978
- Gas shut-off device11US 6,733,276 B12004
- Furnace apparatus and process for control thereof10US 4,005,820 A1977