Patents by Inventor Leonard R. Polinski, Jr.

Leonard R. Polinski, Jr. 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).

  • Constant current source for field contact input
    Patent number: 4532466
    Abstract: A circuit acting as a constant current source comprises a transistor having an emitter to base junction forward biased by a voltage of from 24 to 125 volts DC. A 5.6 volt Zener diode is connected between the base and voltage supply and a light emitting diode is connected between the collector and a field contact. A substantially constant current supply is provided over the voltage range.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: July 30, 1985
    Assignee: The Babcock & Wilcox Company
    Inventor: Leonard R. Polinski, Jr.
  • Process control module
    Patent number: D398585
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 22, 1998
    Assignee: Elsag International N.V.
    Inventors: Lonnie J. Richman, Leonard R. Polinski, Jr., deceased
  • Docking station for process control module
    Patent number: D398586
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 22, 1998
    Assignee: Elsag International N.V.
    Inventors: Lonnie J. Richman, Leonard R. Polinski, Jr., deceased
  • Process controller
    Patent number: D400863
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: November 10, 1998
    Assignee: Elsag International N.V.
    Inventors: Lonnie J. Richman, Leonard R. Polinski, Jr., deceased
  • Docking station for process control module
    Patent number: D401909
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: December 1, 1998
    Assignee: Elsag International N.V.
    Inventors: Lonnie J. Richman, Leonard R. Polinski, Jr.