Patents by Inventor Dominic Colista

Dominic Colista 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).

  • Pushbutton interlock
    Patent number: 4539860
    Abstract: A unique interlock mechanism for two pushbuttons or other linearly operated devices, requiring no mechanical linkages or complex assemblies. The interlock mechanism essentially comprises an interlock member having first and second restraining portions disposed within a housing so that when one of the pushbuttons is operated, the interlock member rotates positioning itself under the second pushbutton, interfering with and making it impossible to be operated.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: September 10, 1985
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert J. Johnston, Stephen G. Layciak, Dominic Colista
  • Convertible momentary/maintained electric switch
    Patent number: 4427853
    Abstract: There is provided by this invention an interlock mechanism for converting two momentary electric control switches to the maintained control mode that is generally comprised of a single extension spring biasing the interlock mechanism in its last selected operating position.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: January 24, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Stephen G. Layciak, Robert J. Johnston, Dominic Colista
  • Switch operator with switch-mounting adapter
    Patent number: 4239946
    Abstract: A switch operator characterized by a switch operator and at least one switch, and an adapter for mounting the switch on the operator. The adapter and the operator are provided with interfitting bayonet type connections which are engaged and disengaged by rotation of one of the operator and adapter about the axis of the assembly, whereby operation of the actuator longitudinally of the assembly does not disconnect the bayonet-type connections.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: December 16, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert J. Johnston, Dominic Colista, Stephen G. Layciak, Stephen S. Dobrosielski
  • Key lock rotary selector switch
    Patent number: 4227056
    Abstract: A key lock rotary selector switch characterized by a switch structure and a rotatable operating unit; the switch structure having a reciprocable contact operating member for effecting opening and closing of a circuit through the switch; the operating unit comprising an actuator tube and a rotatable handle detachably connected to the tube, and an actuator cam for different modes of operating the switch; and a lock in the handle for locking the handle in a given mode of operation.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: October 7, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert J. Johnston, Stephen G. Layciak, Dominic Colista
  • Turn-start push-stop switch operator
    Patent number: 4227058
    Abstract: A turn-push electric switch operator characterized by a tubular housing having a switch operator therein with a detent extending therefrom, a detent cam having a camming surface inclined at an angle to the axis of the housing with a detent retaining notch, and a manual handle operable between first and second positions and having a camming surface for returning the handle from one position to the other.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: October 7, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert J. Johnston, Stephen G. Layciak, Dominic Colista