B22C 21/02
Sectional flasks, i.e. with divided, articulated, or interchangeable side sections
B22C21/02 (Sectional flasks, i.e. with divided, articulated, or interchangeable side sections) appears on 8 US grants and 6 published applications in this corpus.
Search patents in B22C- Granted patents
- 8
- Published applications
- 6
- Assignees
- 8
- Inventors
- 15
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 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 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Casting mold shaping device and casting mold shaping method17 Jun 2025US 12,330,209 B2Metals Engineering Corporation
- Flask unit and cope-and-drag molding machine and line11 Oct 2011US 8,033,316 B2Sintokogio, Ltd.
- Flask unit and cope-and-drag molding machine and line11 Oct 2011US 8,033,317 B2Sintokogio, Ltd.
- Method and device for fabricating moulds from granular material10 Jul 1990US 4,940,071 A
- Apparatus for flaskless sand casting13 Feb 1990US 4,899,806 ACMI International, Inc.
- Clamping device for a core bundle and method for casting13 Nov 2025US 2025/0345845 A1Heinrich Wagner Sinto Maschinenfabrik GmbH
- Casting mold shaping device and casting mold shaping method3 Oct 2024US 2024/0326121 A1Metals Engineering Corporation
- Flask unit and cope-and-drag molding machine and line13 Jan 2011US 2011/0005703 A1Sintokogio, Ltd.
- Flask unit and cope-and-drag molding machine and line16 Apr 2009US 2009/0095437 A1Sintokogio, Ltd.
- Molding machine and a pattern carrier used therefor25 May 2006US 2006/0108087 A1Sintokogio, Ltd.
Most cited
By later US patents
- Horizontal stack molding machine4US 3,958,621 AThe Osborn Manufacturing Corporation · 1976
- Process of flaskless sand casting2US 4,791,975 ACMI International, Inc. · 1988
- Apparatus for flaskless sand casting1US 4,899,806 ACMI International, Inc. · 1990
- Method and device for fabricating moulds from granular material1US 4,940,071 A1990
- Flask unit and cope-and-drag molding machine and line1US 8,033,316 B2Sintokogio, Ltd. · 2011