Abstract: An improved heater band for a hot runner injection molding machine. The heater band includes a cylindrical sleeve adapted to be disposed about a nozzle body in combination with a first wire heating element and a second wire heating element. The first wire heating element includes two contact terminals and an intermediate portion therebetween. The intermediate portion of the first wire heating element is disposed within the cylindrical sleeve. The second wire heating element includes two contact terminals and an intermediate portion therebetween. The intermediate portion of the second wire heating element is also disposed within the cylindrical sleeve. The intermediate portions of the heating elements are adjacent to and axially offset from one another within the cylindrical sleeve. The first wire heating element and the second wire heating element can be alternatively connected to an electrical power supply to extend the operational life of the heater band.

Abstract: An improved hot runner system is provided. The hot runner system includes a hot drop having an inlet for receiving molten material, the inlet diverging into first and second channels that converge at a feeder tube for providing an even distribution of molten material in a mold cavity. The hot runner system further includes a valve pin adapted to reciprocate within the feeder tube for opening and closing the valve gate, the valve pin being moveable in response to activation of first and second linear actuators disposed exterior to the hot drop. The linear actuators are moveable in unison with each other and are joined to the valve pin via a cross-bar that extends through an interior portion of the hot drop between the first and second channels.

Abstract: An improved heater band for a hot runner injection molding machine. The heater band includes a cylindrical sleeve adapted to be disposed about a nozzle body in combination with a first wire heating element and a second wire heating element. The first wire heating element includes two contact terminals and an intermediate portion therebetween. The intermediate portion of the first wire heating element is disposed within the cylindrical sleeve. The second wire heating element includes two contact terminals and an intermediate portion therebetween. The intermediate portion of the second wire heating element is also disposed within the cylindrical sleeve. The intermediate portions of the heating elements are adjacent to and axially offset from one another within the cylindrical sleeve. The first wire heating element and the second wire heating element can be alternatively connected to an electrical power supply to extend the operational life of the heater band.

Abstract: An improved hot runner system is provided. The hot runner system includes a hot drop having an inlet for receiving molten material, the inlet diverging into first and second channels that converge at a feeder tube for providing an even distribution of molten material in a mold cavity. The hot runner system further includes a valve pin adapted to reciprocate within the feeder tube for opening and closing the valve gate, the valve pin being moveable in response to activation of first and second linear actuators disposed exterior to the hot drop. The linear actuators are moveable in unison with each other and are joined to the valve pin via a cross-bar that extends through an interior portion of the hot drop between the first and second channels.

Abstract: An improved actuator for a valve gate assembly is provided. The actuator includes a planetary assembly for converting rotation of an electrical motor into linear movement of a valve gate pin while also providing mechanical advantage to the motor against injection pressures from 15,000 psi to at least 25,000 psi. An internal cooling volume surrounds the motor for continuously cooling the motor with water, and an internal encoder converts an angular rotation within the actuator into an analog or digital signal for output to a controller.

Abstract: A pressure resistant drop tip nozzle assembly for an injection molding machine having a nozzle body with a nozzle passage extending axially through said nozzle body between a nozzle inlet and a nozzle outlet. The assembly includes a drop tip which has a body connected to the nozzle outlet of said nozzle body. The drop tip has a drop tip bore extending between a drop inlet located adjacent said nozzle outlet body and a drop outlet. A tapered drop passage located at said drop outlet defines a resin flow aperture where resin leaves said drop tip. An internal heating insert is positioned within said drop tip bore. The drop tip body is connected to the nozzle body via a mechanical connection such as screw threads. A reinforcing weld preferably via a continuous laser weld is provided between said drop tip body and said nozzle body.

Abstract: A pressure resistant drop tip nozzle assembly for an injection molding machine having a nozzle body with a nozzle passage extending axially through said nozzle body between a nozzle inlet and a nozzle outlet. The assembly includes a drop tip which has a body connected to the nozzle outlet of said nozzle body. The drop tip has a drop tip bore extending between a drop inlet located adjacent said nozzle outlet body and a drop outlet. A tapered drop passage located at said drop outlet defines a resin flow aperture where resin leaves said drop tip. An internal heating insert is positioned within said drop tip bore. The drop tip body is connected to the nozzle body via a mechanical connection such as screw threads. A reinforcing weld preferably via a continuous laser weld is provided between said drop tip body and said nozzle body.

Abstract: A pressure resistant drop tip nozzle assembly for an injection molding machine having a nozzle body with a nozzle passage extending axially through said nozzle body between a nozzle inlet and a nozzle outlet. The assembly includes a drop tip which has a body connected to the nozzle outlet of said nozzle body. The drop tip has a drop tip bore extending between a drop inlet located adjacent said nozzle outlet body and a drop outlet. A tapered drop passage located at said drop outlet defines a resin flow aperture where resin leaves said drop tip. An internal heating insert is positioned within said drop tip bore. The drop tip body is connected to the nozzle body via a mechanical connection such as screw threads. A reinforcing weld preferably via a continuous laser weld is provided between said drop tip body and said nozzle body.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.

Abstract: Metadata describing common Java classes is extracted and utilized to optimize a Java program's performance based on the code requirements of the application. Data mining techniques extract metadata and other information about different sets of JVM byte code written by multiple vendors to determine the design choices and optimizations made by each vendor in implementing their JVM. Then, byte code in a Java application being programmed is analyzed in comparison to each vendor's JVM metadata and information. Based upon the application's requirements (for example footprint, performance, etc.), recommendations are generated that yield a newly compiled rt.jar that combines the best practices of each vendor together or recommends a particular vendor's standard JVM that is best suited for the application.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.

Abstract: An analysis tool extracts class data from Java objects originating from multiple vendors having a particular design specification. A database mining tool then creates training data from the extracted class data to create a definition of objects associated with the particular design specification. Various implementations of the defined classes are compared across various performance metrics, which are output for the program designer as a function of vendor. The designer then selects the best design choices based on the best practices of multiple vendors disclosed by the outputs of the analysis tool when implementing a new Java program.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.

Abstract: An analysis tool extracts class data from Java objects within a potential plagiarizing Java program and the original Java program, and then compares classes common to the potential plagiarizing program and the original across various performance metrics. Similarities disclosed by the analysis tool are output for user or programmatic comparison of the matches between the potentially plagiarizing Java program byte code and the original program's byte code.

Abstract: Java class information is analyzed to determine if the code is standard for its particular class, and thus belongs to impliedly trustworthy software. An analysis tool performs a pre-analysis to train itself on standard class data for standard implementations of the object type and non-standard class data for non-standard implementations of the object type, and then performs a dynamic analysis of a received Java program to determine if its class data matches the criteria for a standard implementation of the object class.

Abstract: An analysis tool extracts class data from Java objects within a potential plagiarizing Java program and the original Java program, and then compares classes common to the potential plagiarizing program and the original across various performance metrics. Similarities disclosed by the analysis tool are output for user or programmatic comparison of the matches between the potentially plagiarizing Java program byte code and the original program's byte code.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.

Abstract: A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can move between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.