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Class Information
Number: 164/245
Name: Metal founding > Means to shape a forming surface > Pattern > To produce undercut
Description: Apparatus wherein the pattern means is particularly adapted for producing undercut parts in the mold.

Sub-classes under this class:

Class Number Class Name Patents
164/246 Destructible type pattern 105
164/248 Loose piece type 2
164/247 Rotatable or pivotal pattern or pattern section 1

Patents under this class:

Patent Number Title Of Patent Date Issued
8459978 Method for manufacturing a composite drive shaft manufactured using mold Jun. 11, 2013
6510887 Method for producing casted body having thin portion Jan. 28, 2003
6279222 Manufacture of brake pads Aug. 28, 2001
4969504 Evaporable foam pattern for use in casting an exhaust manifold Nov. 13, 1990
4952282 Pattern plate for making moulds intended for the production by sand casting of window seals or similar articles having an undercut bead Aug. 28, 1990
4378044 Process of forming casting mold for cast pieces having at least one undercut Mar. 29, 1983
4231413 Assembly for and method of making mold and casting of one-piece impellers Nov. 4, 1980
4208029 Core apparatus Jun. 17, 1980
4027723 Molding apparatus including a flexible mold for making articles having radially inwardly extending projections on an interior surface Jun. 7, 1977

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