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Class Information
Number: 425/451.2
Name: Plastic article or earthenware shaping or treating: apparatus > Mold opening and closing means and segmented female mold > Varying pressure and/or speed closing
Description: Apparatus including structure that moves one of the segments relative to the other at a first velocity and/or a first force and further includes provision for moving the segments during the same closing operation relative to each other at a second velocity and/or second force.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8647563 Press tool Feb. 11, 2014
8186989 Injection molding machine and control method thereof May. 29, 2012
8167602 Compacting tool May. 1, 2012
7938994 Method of controlling an injection molding machine May. 10, 2011
7748974 Molding machine Jul. 6, 2010
7481161 Plunger-cylinder assembly Jan. 27, 2009
7278848 Molding device Oct. 9, 2007
7186106 Molding machine and molding method Mar. 6, 2007
7153128 Press mechanism, clamp mechanism, and molding machine using this clamp mechanism Dec. 26, 2006
7114949 Method and apparatus for mold clamping in an injection molding machine and the like Oct. 3, 2006
6986657 Injection molding apparatus Jan. 17, 2006
6953334 Closing device on a plastic injection molding machine Oct. 11, 2005
6932924 Method and apparatus for mold clamping in an injection molding machine and the like Aug. 23, 2005
6846442 Process for producing golf ball Jan. 25, 2005
6838036 Method for manufacturing golf ball Jan. 4, 2005
6821104 Die clamping apparatus and method, and method for adjustment to die thickness using said apparatus Nov. 23, 2004
6817859 Drive device for a movable part, especially a mold closure device for an injection molding machine, and method for operating such a drive device Nov. 16, 2004
6769902 Surface-pressure generating device in an injection-molding machine Aug. 3, 2004
6739864 Molding machine May. 25, 2004
6733274 Injection moulding machine and moulding method May. 11, 2004
6602456 Method and device for actuating a press Aug. 5, 2003
6254378 Injection molding apparatus Jul. 3, 2001
6254371 Press system for urethane parts Jul. 3, 2001
6186763 Threaded actuator for positioning structure subjected to intense loads Feb. 13, 2001
6186770 Clamping assembly for injection molding apparatus Feb. 13, 2001
6120712 Accumulator head blow molding machine and method Sep. 19, 2000
6103174 Mold clamping method for straight hydraulic mold clamping apparatus Aug. 15, 2000
6054076 Accumulator head blow molding machine and method Apr. 25, 2000
6027681 Stack mold linkage with unequal strokes Feb. 22, 2000
6009727 Mold opening and closing mechanism for an I.S. machine Jan. 4, 2000
5935622 Device for shaping a microstructure substrate Aug. 10, 1999
5922371 Injection molding apparatus including force setting device Jul. 13, 1999
5879726 Locking apparatus for upper and lower molds of a press Mar. 9, 1999
5824131 Mold opening and closing mechanism for an I.S. machine Oct. 20, 1998
5820797 Process for controlling a mold closing unit for use in an injection molding machine Oct. 13, 1998
5811139 Device for fixing a ball screw/nut mechanism safe from turning Sep. 22, 1998
5803945 Mold opening and closing mechanism for an I.S. machine Sep. 8, 1998
5800843 Apparatus for injection molding plastic material Sep. 1, 1998
5800846 Twin-sheet thermoforming apparatus with hydraulic array mold support Sep. 1, 1998
5787564 Method of constructing a hydraulic press assembly Aug. 4, 1998
5763498 Moldable thermoplastic polymer foam beads Jun. 9, 1998
5750163 Hydraulic mould closure device for an injection moulding machine May. 12, 1998
5730927 Process and apparatus for producing hollow bodies of thermoplastic material Mar. 24, 1998
5720918 Method and apparatus for closing tool of plastics processing machine Feb. 24, 1998
5701814 Hydraulic press assembly Dec. 30, 1997
5698240 Compression molding apparatus Dec. 16, 1997
5622737 Mold closing unit for use in an injection molding machine and process for controlling it Apr. 22, 1997
5522713 Direct drive electro-mechanical press for encapsulating semiconductor devices Jun. 4, 1996
5422060 Method of opening and closing molds of injection molding machines Jun. 6, 1995
5378140 Mold clamping apparatus Jan. 3, 1995

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