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: 6343921
    Abstract: An injection molding apparatus is provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding system is provided that includes a manifold adapted to receive material injected from an injection molding machine and distribute the material to a plurality of channels, a plurality of injection molding nozzles coupled to the manifold, each injection molding nozzle having a bore for passing material from one of said channels of the manifold to a respective gate of a respective separate mold cavity, and a controller to individually control respective rates at which material flows into each separate mold cavity during an injection cycle.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: February 5, 2002
    Assignee: Synventive Molding Solutions
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6343922
    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, an injection molding apparatus includes a manifold having an inlet for receiving material injected from an injection molding machine, a plurality of injection nozzles coupled to the manifold for distributing the material to a corresponding plurality of gates to one or more mold cavities, and a plurality of sensors respectively associated with each of said plurality of nozzles, each sensor to sense a condition related to the rate of material flow at a location between said inlet and said plurality of gates.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: February 5, 2002
    Assignee: Synventive Molding Solutions
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6309208
    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; and, an actuator controller interconnected to each actuator, at least one actuator controller comprising a computer interconnected to the 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.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: October 30, 2001
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6287107
    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; and, an actuator controller interconnected to each actuator, at least one actuator controller comprising a computer interconnected to the 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.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: September 11, 2001
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6261075
    Abstract: A coinjection molding system for injecting skin and core material into a mold cavity. The system includes a three position actuator for moving a valve pin into a closed position in which neither skin nor core flow is permitted, a middle position in which only skin flow is permitted, and an open position in which skin and core flow is permitted. The actuator includes a first piston slidably mounted in an actuator housing, and a second piston, attached to the valve pin, slidably mounted within the first piston. A shut-off is provided in the manifold for preventing skin flow to a particular nozzle during sequential gating.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 17, 2001
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Christopher W. Lee, Mark D. Moss
  • Patent number: 6254377
    Abstract: An injection molding apparatus is 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 having an inlet for receiving material from an injection molding machine, 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 having 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 a rate of material flow during an injection cycle.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: July 3, 2001
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David Kazmer, Mark D. Moss
  • Patent number: 6062840
    Abstract: A coinjection molding system for injecting skin and core material into a mold cavity. The system includes a three position actuator for moving a valve pin into a closed position in which neither skin nor core flow is permitted, a middle position in which only skin flow is permitted, and an open position in which skin and core flow is permitted. The actuator includes a first piston slidably mounted in an actuator housing, and a second piston, attached to the valve pin, slidably mounted within the first piston. A shut-off is provided in the manifold for preventing skin flow to a particular nozzle during sequential gating.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: May 16, 2000
    Assignee: Dynisco Hotrunners, Inc.
    Inventors: Christopher W. Lee, Mark D. Moss
  • Patent number: 5894025
    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: June 13, 1997
    Date of Patent: April 13, 1999
    Assignee: KONA Corporation
    Inventors: Christopher W. Lee, Mark D. Moss
  • Patent number: 4254848
    Abstract: A sprocket-actuated bike brake includes a brake shoe swingable against the rear tire by an actuator engaged by the sprocket teeth when the pedal sprocket is rotated in reverse. Using a small number of parts, the brake couples a maximum amount of force from the sprocket to the brake shoe and imparts a drag on the tire which is proportional to the force on the pedals so that the bike has a stop length versus pedal force characteristic which is substantially linear.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: March 10, 1981
    Assignee: Hedstrom Co.
    Inventor: Mark D. Moss
  • Patent number: 4231582
    Abstract: A play seat includes telescoping scissor frames for supporting a seat above a base ring composed of two opposing arcuate ring sections whose opposite ends are connected together by stiff coil springs. The lower ends of the scissor frames are pivotally connected to the ring sections so that any weight in the seat tends to spread apart the ring sections thereby tensioning the springs whereby the seat is resiliently supported above the ground. Each spring is protectively enclosed within a plastic sleeve.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: November 4, 1980
    Assignee: Hedstrom Co.
    Inventor: Mark D. Moss