Feed Screws, Injection Molding Patents

5961209	Feed screw
4154536	High efficiency injection molding screw
4306848	Injection molding apparatus having low shear screw
4285600	Injection molding machine with multichannel wave screw
5945133	Injection molding machine with non-intermeshing twin screw compounder feeder
4299792	Injection molding process utilizing low shear screw
4240755	Injection molding screw for processing heat sensitive polymeric materials
4255379	Injection molding using screw for processing heat sensitive polymeric materials
5984517	Injection screw
5518394	Injection screw
5520454	Injection screw set for an injection molding machine
4802140	Method and molding screw for injection molding
6132075	Multichannel wave screw with a slush channel barrier section
3944192	Plasticizer apparatus for ball agitator along screw flights
6033205	Reciprocating screw for an injection molding machine
5842782	Screw conveyor-type delivery and mixing device for plastics injecting molding machine
5957576	Screw for in-line screw type thermosetting resin injection molding machine
5735599	Screw for molding machine that prevents a wrapping phenomenon
4729666	Screw for molding thermoplastic resin having a stress relaxation section
5945141	Screw head device for injection molding machine
5811136	Screw-in-plunger injection apparatus
4693676	Screw-rotating/injection mechanism of injection molding machine
5356281	Screw-type resin injection apparatus for injection molding
5700885	Single screw method and apparatus
5597235	Twin screw extruder for processing elastomeric compositions
5593227	Twin-shaft screw-type extruding machine having mixing elements with wings