Patents Assigned to Rospatch Corporation
  • Patent number: 4326133
    Abstract: A control circuit for alternately actuating a pair of loads includes a voltage doubling circuit having a capacitor common to a pair of charge storage devices and switch means which are alternately actuated to discharge the charge storage devices through a pair of loads. Coupled to the circuit is a holding current power supply for maintaining the loads in an actuated position once the charge storage devices are discharged. The circuit thus provides an initially high current pulse for rapidly actuating inductive loads such as solenoids.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: April 20, 1982
    Assignee: Rospatch Corporation
    Inventor: James D. Tasma
  • Patent number: 4069727
    Abstract: The separation of label tape formed of oriented thermoplastic polymer fibers into individual labels having wash-durable ends, by progressively melting the fibers, in a transverse zone of the tape, beginning at one face of the tape, while also progressively forcing the molten polymer, in a direction diagonally away from this zone and toward the opposite face of the tape, into the interstices between the unmolten fibers and with a portion of the polymer forced along said opposite face, using a heated beveled blade, having a blunt leading edge and chilling the molten polymer at said opposite face with a cold platen opposite the blade, to form a polymer anchor at said opposite face, and anchor the fibers in the polymer which serves as a matrix.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: January 24, 1978
    Assignee: Rospatch Corporation
    Inventors: Charles E. Sparks, J. G. Templeton, Melvin E. Larson