Matches 1 - 10 out of 10
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7364131 Non-return valve for use in a molding system  
The present invention relates to a non-return valve that can be configured for use anywhere along a molding material flow path in a molding system. The non-return valve of the present invention...
7131625 Ejector pin and method  
An insert for a mold comprising a plug, having an insert face, and a receiver defined by a sidewall with one of the plug and the receiver having a groove that receives a guide that extends from the...
6942376 Extruder mixing  
An extruder for producing a thermoplastic material having a first and second portion, namely, an axially extending barrel; first and second screw conveyers co-axially disposed within said barrel,...
6827569 Mold vent and method  
A mold vent and method. The vent has expanding passages. A preferred vent comprises an insert that has a plurality of passages. One insert comprises a grate formed of a plurality of portions that...
6499987 Positive control non-return valve for an injection molding machine  
An improved positive control non-return valve assembly which is mounted on the front end of a helical plasticating screw of an injection molding machine. The valve assembly comprises a thread...
6464488 Sliding ring non-return valve  
A sliding ring non-return valve primarily for use with an injection molding machine utilizes a frame having cut therein one or more longitudinal grooves. Material flows around the outer edge of a...
6308929 Mold insert  
An insert for a mold comprising a plug, having an insert face, and a receiver defined by a sidewall with one of the plug and the receiver having a groove that receives a guide that extends from the...
6203311 Sliding ring non-return valve  
A sliding ring non-return valve primarily for use with an injection molding machine utilizes a frame having cut therein one or more longitudinal grooves. Material flows around the outer edge of a...
5470514 Injection molding method for a shot of determined mass  
A non-return valve (10) primarily for use with an injection molding machine utilizes a frame (12) which surrounds a first bore (34) and a second bore (32). The second bore (32) is accessed by...
5258158 Positive-type non-return valve and method of using valve  
A positive-type, non-return valve (10) primarily for use with an injection molding machine utilizes a frame (12) which surrounds a first bore (34) and a second bore (32). The second bore (32) is...
Matches 1 - 10 out of 10