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Class Information
Number: 164/313
Name: Metal founding > Means to shape metallic material > Pressure shaping means > Injection type > Piston-cylinder charger > Opposed piston injector
Description: Apparatus which include at least two pistons which have opposed pressure faces which act to inject the casting material.

Patents under this class:

Patent Number Title Of Patent Date Issued
7784525 Economical methods and injection apparatus for high pressure die casting process Aug. 31, 2010
7036553 Die-casting device May. 2, 2006
6663813 Method for cooling molded articles Dec. 16, 2003
5611387 Moulding device Mar. 18, 1997
5515905 Automatic horizontal pressure die injection system May. 14, 1996
5343927 Method and a device for press casting Sep. 6, 1994
5195572 Two part shot sleeve for die casting Mar. 23, 1993
4721147 Apparatus for forming small objects such as bullets Jan. 26, 1988
4601321 Vertical die casting device Jul. 22, 1986
4519436 Method for injecting molten metal in vertical diecasting machine May. 28, 1985
4505318 Vertical type pressure casting method Mar. 19, 1985
4499941 Modified pressure casting process and machine Feb. 19, 1985
4436140 Method of charging molten metal into a vertical die casting machine Mar. 13, 1984
4354545 Modified pressure casting process Oct. 19, 1982

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