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Class Information
Number: 425/154
Name: Plastic article or earthenware shaping or treating: apparatus > With safety feature > Means to alter operation due to presence of foreign matter or overload
Description: Apparatus including means to modify the operation of a molding machine due to (1) the presence of extraneous matter or (2) an overloaded condition.










Patents under this class:

Patent Number Title Of Patent Date Issued
7179075 Vertical injection molding machine Feb. 20, 2007
7041242 Mold-clamping control method for injection molding machine May. 9, 2006
6652785 Operatorless extrusion system Nov. 25, 2003
6478566 Slide guide device, knockout device, and press machine using the same Nov. 12, 2002
6409495 Mold protection device for injection molding machine Jun. 25, 2002
6276916 Failsafe shooting pot actuator for an injection molding machine Aug. 21, 2001
5932155 Method and apparatus for providing overload protection in compression molding machines Aug. 3, 1999
5582843 Manufacture of solvent-spun cellulose fibre and quality control means therefor Dec. 10, 1996
5542835 Leak detector for an injection moulding machine Aug. 6, 1996
5493961 Continuous board-making press including press plate deformation safety device Feb. 27, 1996
5478512 Method of detecting cam overload in a plastic molding apparatus Dec. 26, 1995
5271318 Folding table for a press, with a security device to cause the immediate fall of the table in the case of an overload Dec. 21, 1993
5225209 Apparatus for stretching dough Jul. 6, 1993
5147491 Form, fill and seal process and device Sep. 15, 1992
5044913 Device at multi platen presses Sep. 3, 1991
4995802 Apparatus for extruding plastic materials Feb. 26, 1991
4993932 Clay dough toy extruder Feb. 19, 1991
4975227 Method for removing clogging of a nozzle in a motor-driven injection molding machine Dec. 4, 1990
4971540 Apparatus for laying a mat of fibrous material Nov. 20, 1990
RE33248 Clamp mechanism Jul. 3, 1990
4815956 Insole feeding apparatus for a molding press Mar. 28, 1989
4759890 Process for monitoring a screw or worm extruder, particularly a pin-cylinder extruder Jul. 26, 1988
4708620 Machine for molding articles by injection molding or die casting Nov. 24, 1987
4685875 Pressure relief device for extrusion apparatus Aug. 11, 1987
4652226 Apparatus for the continuous production of electrode material Mar. 24, 1987
4600150 Spraying system utilizing a screw conveyor Jul. 15, 1986
4589830 Press control system May. 20, 1986
4588364 Clamp mechanism May. 13, 1986
4548566 Automatic machine for forming and distributing bakery products of various shapes in baking tins Oct. 22, 1985
4536144 Reversing mechanism for safety gate of injection molding machine Aug. 20, 1985
4515544 Mold protection device May. 7, 1985
4514161 Hydraulic roll protection system Apr. 30, 1985
4473345 System for detecting solid obstacles between confronting surfaces of pressure plates Sep. 25, 1984
4412798 Mold clear detector Nov. 1, 1983
4302172 Extrusion die assembly Nov. 24, 1981
4298322 Venting means for screw extruders Nov. 3, 1981
4290701 Injection-molding machine with reciprocating plasticizing screw Sep. 22, 1981
4284397 Device for drawing thermoplastic preforms during the blow molding thereof Aug. 18, 1981
4254414 Processor-aided fire detector Mar. 3, 1981
4252174 Method and apparatus for monitoring the operation of a reciprocating liquid injection unit Feb. 24, 1981
4238432 Extrusion presses Dec. 9, 1980
4200428 Automatic mandrel checker Apr. 29, 1980
4124341 Apparatus for cooling and granulating strands of thermoplastic material Nov. 7, 1978
4070138 Screen changer apparatus Jan. 24, 1978
4057378 Traversing core rod detecting device Nov. 8, 1977
4038003 Injection molding machine Jul. 26, 1977
4029456 Rapid load-relieve device for continuous press Jun. 14, 1977
4017235 Apparatus for avoiding an excess of pressure in a continuous press Apr. 12, 1977
3942928 Pressure moulding machines and mould parts therefor Mar. 9, 1976











 
 
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