Patents by Inventor William E. Headen

William E. Headen 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: 5341038
    Abstract: An error detection circuit having an output transistor of one conductivity type and a sense transistor and error detector transistor of an opposite conductivity type. An input voltage is provided at the collector of the output transistor and an output voltage is taken from the emitter of the output transistor. An emitter of the sense transistor is connected to the input voltage and the collector of the sense transistor is connected to the base of the output transistor. An emitter of the error detector transistor is connected to the collector of the sense transistor and a base of the error detector transistor is connected to the base of the sense transistor. The error detector transistor conducts when the sense transistor saturates indicating that the input voltage and output voltage have come within a predetermined voltage of one another.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: August 23, 1994
    Assignee: Cherry Semiconductor Corporation
    Inventor: William E. Headen, Jr.
  • Patent number: 4721867
    Abstract: A high speed logic gate is disclosed in which the voltage across the output transistor is clamped by a diode, a current switch transistor, a resistor connected between the diode and the transistor and a resistor connected to ground. A selectable high impedance is provided to enable the output of the logic gate to simulate an open collector output.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: January 26, 1988
    Assignee: Cherry Semiconductor Corporation
    Inventors: William E. Headen, Jr., Stephen S. Yole
  • Patent number: 4128278
    Abstract: A linear motion ball bearing assembly is provided for mounting within a housing and comprises a plurality of ball retainer members with a raceway therein. With the members surrounding a shaft, a load bearing plate is associated with the load bearing portion of each raceway and on the outer periphery of each raceway an elastomeric strip of material is mounted to resiliently restrain the movement of the ball bearing assembly in the spherical seat within the housing, and provide a high damping factor and exhibit high static stiffness.
    Type: Grant
    Filed: August 30, 1977
    Date of Patent: December 5, 1978
    Assignee: Brown & Sharpe Manufacturing Company
    Inventors: William E. Headen, George N. Levesque
  • Patent number: 4120538
    Abstract: A pillow block for the reception of self-aligning linear motion bearings which pillow block can be made up of two or more self-aligning bearing units which will allow increased bearing surface with an ease of alignment.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: October 17, 1978
    Assignee: Brown & Sharpe Manufacturing Company
    Inventor: William E. Headen