Patents by Inventor Mark D. Moss

Mark D. Moss has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6769896
    Abstract: An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: August 3, 2004
    Assignee: Synventive-Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
  • Patent number: 6767486
    Abstract: A system and method are provided in which the rate of material flow to a plurality of gates can be controlled by a single controller. According to one embodiment, material is provided to first and second runners, the first runner comprising a plurality of distribution nozzles, and the flow to the first runner being controllable independently of the flow to the second runner.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: July 27, 2004
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Michael A. Doughty, Wesley Drew Firisin, William J. Hume, Mark D. Moss, David Kazmer
  • Patent number: 6713002
    Abstract: An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 30, 2004
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
  • Publication number: 20030203064
    Abstract: A system and method are provided in which the rate of material flow to a plurality of gates can be controlled by a single controller. According to one embodiment, material is provided to first and second runners, the first runner comprising a plurality of distribution nozzles, and the flow to the first runner being controllable independently of the flow to the second runner.
    Type: Application
    Filed: April 24, 2003
    Publication date: October 30, 2003
    Applicant: Synventive Molding Solutions, Inc.
    Inventors: Michael A. Doughty, Wesley Drew Firisin, William J. Hume, Mark D. Moss, David Kazmer
  • Patent number: 6638049
    Abstract: In an injection molding machine, an apparatus for controlling delivery of a fluid material to mold cavities of selectively variable size, shape, volume or configuration, the apparatus comprising a modular mold mounting mechanism having mounting apertures for receiving first and second molds having first and second mold cavities of different size, shape, volume or configuration, the mounting apertures being adapted for ready insertion and ready removal of the first and second molds; a manifold into which fluid material is injected, the manifold having first and second fluid delivery channels through which the fluid material is injected, one channel having an exit aperture communicating with a gate to the cavity of one mold, the other channel having an exit aperture communicating with a gate to the cavity of the other mold; each channel being associated with a drive mechanism which is interconnected to and controls operation of a fluid flow controller which varies flow of the fluid material through an associate
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: October 28, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Mark D. Moss, David Kazmer
  • Publication number: 20030198702
    Abstract: An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
    Type: Application
    Filed: January 31, 2003
    Publication date: October 23, 2003
    Applicant: Dynisco Hotrunners, Inc.
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
  • Patent number: 6632079
    Abstract: An injection molding apparatus and system are provided in which the rate of material flow during the injection cycle is controlled. According to one preferred embodiment, an injection molding system is provided that includes an injection molding machine including a hydraulic power source, a manifold for distributing material injected from said injection molding machine to a plurality of gates leading to one or more mold cavities, and a controller to individually control respective rates at which material is injected through said gates during an injection cycle. The controller is coupled to the hydraulic power source and the hydraulic power source supplies hydraulic power to both the injection molding machine and to control said respective rates.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: October 14, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle
  • Publication number: 20030180409
    Abstract: An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
    Type: Application
    Filed: January 31, 2003
    Publication date: September 25, 2003
    Applicant: Dynisco Hotrunners, Inc.
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
  • Publication number: 20030155672
    Abstract: An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
    Type: Application
    Filed: October 11, 2002
    Publication date: August 21, 2003
    Applicant: Synventive Molding Solutions
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
  • Patent number: 6599116
    Abstract: A valve pin actuator is disclosed that includes a cylinder mounted to the clamping plate, a piston slidably mounted in the cylinder, and a valve pin assembly carried by the piston. A hydraulic or pneumatic circuit is provided for controlling the movement of the piston, and in turn translation of the valve pin between the seated and unseated positions. The valve pin assembly includes a first part removably secured to the piston so as to translate therewith, and a second part for receiving the valve pin and secured to said manifold. The actuator assembly enables removal of the clamping plate without removal of the valve pin assembly, and also adjusting of the valve pin without removal of the clamping plate. The assembly further provides a clearance between the piston and valve pin assembly, to accommodate expansion and movement of the manifold that would otherwise cause a side load to be exerted on the valve pin.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: July 29, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Christopher W. Lee, Mark D. Moss
  • Patent number: 6589039
    Abstract: A system and method are provided in which the rate of material flow to a plurality of gates can be controlled by a single controller. According to one embodiment, material is provided to first and second runners, the first runner comprising a plurality of distribution nozzles, and the flow to the first runner being controllable independently of the flow to the second runner.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: July 8, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Michael A. Doughty, Wesley Drew Firisin, William J. Hume, Mark D. Moss, David Kazmer
  • Patent number: 6585505
    Abstract: In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicating with a gate of a cavity of a mold and being associated with an actuator interconnected to a melt flow controller, the apparatus comprising a sensor for sensing a selected condition of the melt material through at least one of the nozzles; an actuator controller interconnected to each actuator, each actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value corresponding to a signal received from the sensor as a variable for controlling operation of an actuator for the at least one nozzle; wherein the melt flow controller controls the rate of flow of the melt materi
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: July 1, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6514440
    Abstract: An injection molding apparatus, system and method are provided in which the rate of material flow during the injection cycle is controlled. According to one preferred embodiment, a method of open-mold purging is provided in an injection molding system including a manifold to receive material injected from an injection molding machine. The method includes the steps of selecting a target purge pressure; injecting material from the injection molding machine into the manifold; and controlling the purge pressure to substantially track the target purge pressure, wherein the purge pressure is controllable independently from the injection molding machine pressure.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: February 4, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David O. Kazmer, Mark D. Moss, Brian Bassett, Mark J. Doyle
  • Publication number: 20020190413
    Abstract: An injection molding apparatus is provided in which the rate of material flow during the injection cycle is controlled. According to one preferred embodiment, a method is provided for use in an injection molding apparatus including a hot runner assembly comprising a manifold and at least first and second injection nozzles, the hot runner assembly to direct material injected into said manifold through said at least first and second injection nozzles through a corresponding at least first and second gates to one or more mold cavities. The method includes the steps of injecting material into the manifold, controlling, in the hot runner away from the first gate, a first rate at which material is injected through the first gate, and controlling, in the hot runner away from the second gate, a second rate at which material is injected through the second gate, independently from the first rate.
    Type: Application
    Filed: August 8, 2002
    Publication date: December 19, 2002
    Applicant: Synventive Molding Solutions
    Inventors: David Kazmer, Mark D. Moss
  • Publication number: 20020164392
    Abstract: In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicating with a gate of a cavity of a mold and being associated with an actuator interconnected to a melt flow controller, the apparatus comprising a sensor for sensing a selected condition of the melt material through at least one of the nozzles; an actuator controller interconnected to each actuator, each actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value corresponding to a signal received from the sensor as a variable for controlling operation of an actuator for the at least one nozzle; wherein the melt flow controller controls the rate of flow of the melt materi
    Type: Application
    Filed: April 24, 2001
    Publication date: November 7, 2002
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6464909
    Abstract: An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: October 15, 2002
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
  • Publication number: 20020132025
    Abstract: A valve pin actuator is disclosed that includes a cylinder mounted to the clamping plate, a piston slidably mounted in the cylinder, and a valve pin assembly carried by the piston. A hydraulic or pneumatic circuit is provided for controlling the movement of the piston, and in turn translation of the valve pin between the seated and unseated positions. The valve pin assembly includes a first part removably secured to the piston so as to translate therewith, and a second part for receiving the valve pin and secured to said manifold. The actuator assembly enables removal of the clamping plate without removal of the valve pin assembly, and also adjusting of the valve pin without removal of the clamping plate. The assembly further provides a clearance between the piston and valve pin assembly, to accommodate expansion and movement of the manifold that would otherwise cause a side load to be exerted on the valve pin.
    Type: Application
    Filed: May 13, 2002
    Publication date: September 19, 2002
    Applicant: Dynisco Hotrunners, Inc.
    Inventors: Christopher W. Lee, Mark D. Moss
  • Patent number: 6436320
    Abstract: An injection molding apparatus is provided in which the rate of material flow during the injection cycle is controlled. According to one preferred embodiment, a method is provided for use in an injection molding apparatus including a hot runner assembly comprising a manifold and at least first and second injection nozzles, the hot runner assembly to direct material injected into said manifold through said at least first and second injection nozzles through a corresponding at least first and second gates to one or more mold cavities. The method includes the steps of injecting material into the manifold, controlling, in the hot runner away from the first gate, a first rate at which material is injected through the first gate, and controlling, in the hot runner away from the second gate, a second rate at which material is injected through the second gate, independently from the first rate.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: August 20, 2002
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6419870
    Abstract: A valve pin actuator is disclosed that includes a cylinder mounted to the clamping plate, a piston slidably mounted in the cylinder, and a valve pin assembly carried by the piston. A hydraulic or pneumatic circuit is provided for controlling the movement of the piston, and in turn translation of the valve pin between the seated and unseated positions. The valve pin assembly includes a first part removably secured to the piston so as to translate therewith, and a second part for receiving the valve pin and secured to said manifold. The actuator assembly enables removal of the clamping plate without removal of the valve pin assembly, and also adjusting of the valve pin without removal of the clamping plate. The assembly further provides a clearance between the piston and valve pin assembly, to accommodate expansion and movement of the manifold that would otherwise cause a side load to be exerted on the valve pin.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: July 16, 2002
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Christopher W. Lee, Mark D. Moss
  • Patent number: 6361300
    Abstract: An injection molding apparatus is provided for controlling the rate of material flow into a mold cavity or plurality of mold cavities during an injection cycle. The apparatus is, for example, a hot runner system for injecting plastic melt. A valve pin is provided for controlling the flow of material away from the gate. A gap is formed between the surface of the valve pin and the surface of the material flow bore away from the gate. Control of material flow is achieved by displacing the valve pin and thereby adjusting the size of the gap. A control system is provided that compares a sensed condition indicative of the rate of material flow into the mold cavity to a target profile of the sensed condition, and adjusts the valve pin during the injection cycle to mirror the target profile.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: March 26, 2002
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss