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Class Information
Number: 164/172
Name: Metal founding > Means to shape a forming surface > Including means for compacting particulate fluent mold materials > Plural rammers
Description: Apparatus wherein two or more pressing heads are utilized in shaping the mold material.

Sub-classes under this class:

Class Number Class Name Patents
164/173 Fluid pressure actuated means 11

Patents under this class:

Patent Number Title Of Patent Date Issued
8347946 Flaskless molding machine Jan. 8, 2013
8316918 Flaskless molding machine Nov. 27, 2012
8251124 Molding machine Aug. 28, 2012
8011415 Flaskless molding apparatus for an upper and a lower mold Sep. 6, 2011
7129383 Processes for the preparation of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane, hexafluoropropene and 1,1,1,2,3,3,3-heptafluoropropane Oct. 31, 2006
6823929 Die molding machine and pattern carrier Nov. 30, 2004
6749003 Compressing method for casting sand and device therefor Jun. 15, 2004
6684933 Method and apparatus for compacting molding sand Feb. 3, 2004
6470953 Molding method and system with a molding apparatus Oct. 29, 2002
6176296 Apparatus for pressing sand molds Jan. 23, 2001
5947185 Method and apparatus for pre-compacting molding sand Sep. 7, 1999
5682941 Device for producing molds Nov. 4, 1997
5409052 Device for simultaneously forming cope and drag molds Apr. 25, 1995
5163497 Method of and apparatus for forming sand molds Nov. 17, 1992
5070928 Forming press with quick-change tool-to-bolster locking mechanism Dec. 10, 1991
4976303 Method of and apparatus for forming sand molds Dec. 11, 1990
4598756 Method for making sand molds Jul. 8, 1986
4143700 Angled molding machine Mar. 13, 1979
4044818 Apparatus for forming sand molds Aug. 30, 1977

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