Patents Assigned to Murray Incorporated
  • Micro injection molding machine
    Publication number: 20020020943
    Abstract: A molding machine for molding microparts containing between 0.001 to 3.5 cubic centimeters of plastic shot volume includes a plasticizing portion operatively connected to an injection portion and a mold portion. A valve member is provided to open and close the connection between the plasticizing portion and the injection portion. A linear motor member is associated with the injection portion to permit molding times of 0.01 seconds at pressures up to about 100,000 psi during injection of the molten plastic into the mold portion.
    Type: Application
    Filed: May 9, 2001
    Publication date: February 21, 2002
    Applicant: Murray Incorporated
    Inventors: Phillip M. Leopold, Andrew R. Leopold
  • Micro injection molding machine
    Patent number: 6267580
    Abstract: A molding machine for molding microparts containing between 0.001 to 3.5 cubic centimeters of plastic shot volume includes a plasticizing portion operatively connected to an injection portion and a mold portion. A valve member is provided to open and close the connection between the plasticizing portion and the injection portion. A linear motor member is associated with the injection portion to permit molding times of 0.01 seconds at pressures up to about 100,000 psi during injection of the molten plastic into the mold portion.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: July 31, 2001
    Assignee: Murray Incorporated
    Inventors: Phillip M. Leopold, Andrew R. Leopold