| Patents for B22C 21 - Flasks; Accessories therefor (1,134) |
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| 01/18/1984 | EP0098405A1 Method of producing large size green sand moulding parts (mould area 1-3 m2) for pouring into flaskless moulds |
| 11/16/1983 | EP0093836A1 Flask for a vacuum-produced mould |
| 07/27/1983 | EP0084234A1 Investment casting process and mould |
| 06/07/1983 | US4386868 Leader pin locking device |
| 05/03/1983 | CA1145528A1 Method of assembling molds |
| 02/16/1983 | EP0072088A2 Foundry machinery |
| 10/20/1982 | EP0062997A2 Method of producing refractory articles and a method of casting therewith |
| 08/31/1982 | US4346751 Foundry molds |
| 05/12/1982 | EP0051302A1 Flask for the vacuum moulding process |
| 05/05/1982 | EP0050752A1 Flask side-wall |
| 11/03/1981 | US4298049 Method for assembling molds |
| 09/29/1981 | US4291745 Foundry mold jacket |
| 08/12/1981 | EP0033387A2 Venting means for moulds |
| 08/04/1981 | CA1106132A1 Foundry molds |
| 06/30/1981 | US4275783 Molding machine for fabricating boxless molds |
| 04/28/1981 | CA1099889A1 Pattern device for foundry molds |
| 02/17/1981 | CA1095686A1 Mold assembly for casting ingot cases |
| 12/16/1980 | US4239079 Sand deflector for automatic molding machine |
| 09/30/1980 | US4224976 Method of assembling molds |
| 04/22/1980 | US4199313 Detachable aligning pin for die assembly |
| 04/22/1980 | US4199020 Pattern device for foundry molds |
| 10/16/1979 | CA1064219A1 Joining of multi-section ceramic molds |
| 06/26/1979 | US4159031 Flask for sand molds which are to be filled with metal |
| 12/12/1978 | US4129164 Vacuum forming or reduced-pressure moulding |
| 11/21/1978 | US4125931 Method of supporting a core within a mold |
| 09/12/1978 | US4113001 Mould clamping and positioning system |
| 08/09/1977 | US4040597 Core holding structure for molds |
| 12/07/1976 | US3995685 Foundry flask clamp |
| 10/19/1976 | US3986548 Guide pin and bushing assembly for flask, patterns, and the like |
| 10/05/1976 | US3983926 Automatic clamping of moulding boxes |
| 07/20/1976 | US3970139 Vacuum control valving apparatus for a vacuum sealed molding apparatus |
| 06/08/1976 | US3961664 Split moulds and carriers therefor |
| 05/25/1976 | US3958621 Horizontal stack molding machine |
| 04/27/1976 | US3952793 Moulding flask for vacuum sealed moulding process |