Patents by Inventor Roy Hyink

Roy Hyink 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).

  • SME shutter mechanism
    Patent number: 4522147
    Abstract: A shutter 4 is movably mounted in a housing 6 for actuation between given positions by an SME (shape memory effect) element 8 in response to a given level of current flow through the SME element 8 causing I.sup.2 R heating of the latter above its transition temperature. The shutter 4 may be an indicator flag exposed by a window 10 in the housing 6, or may interrupt an optic beam 22.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: June 11, 1985
    Assignee: Eaton Corporation
    Inventors: John W. Kroll, Roy Hyink
  • Thermally self-protected power switching semiconductor device
    Patent number: 4087848
    Abstract: A semiconductor device is disclosed comprising a temperature sensitive thyristor thermally coupled to a power switching thyristor and electrically connected in parallel with the gate of the latter. The temperature sensitive thyristor senses the temperature of the power switching thyristor and automatically responds thereto above a predetermined temperature by shunting the gate current to prevent overheating of the power switching thyristor. The device may additionally include a second temperature sensitive thyristor having a lower switching temperature than the first mentioned thyristor and connected in series with the gate of the power switching thyristor whereby the latter may be triggered into conduction only within a defined temperature range bounded by the switching temperatures of the temperature sensitive thyristors. Normally off and normally on devices are also disclosed.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: May 2, 1978
    Assignee: Cutler-Hammer, Inc.
    Inventors: Roy Hyink, Stanley V. Jaskolski, Robert W. Lade, Herman P. Schutten, Gordon B. Spellman
  • Thermally self-protected power switching semiconductor device
    Patent number: RE30514
    Abstract: A semiconductor device is disclosed comprising a temperature sensitive thyristor thermally coupled to a power switching thyristor and electrically connected in parallel with the gate of the latter. The temperature sensitive thyristor senses the temperature of the power switching thyristor and automatically responds thereto above a predetermined temperature by shunting the gate current to prevent overheating of the power switching thyristor. The device may additionally include a second temperature sensitive thyristor having a lower switching temperature than the first mentioned thyristor and connected in series with the gate of the power switching thyristor whereby the latter may be triggered into conduction only within a defined temperature range bounded by the switching temperatures of the temperature sensitive thyristors. Normally off and normally on devices are also disclosed.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: February 10, 1981
    Assignee: Eaton Corporation
    Inventors: Roy Hyink, Stanley V. Jaskolski, Robert W. Lade, Herman P. Schutten, Gordon B. Spellman