Patents by Inventor James D. Rodems

James D. Rodems 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).

  • Railway wheel sensors
    Patent number: 5129606
    Abstract: The invention concerns a system for sensing train wheels which employs a slotted detector bar. Optical resistive and piezoresistive strain gauges may be coupled to the detector bar as well as enhanced mechanical and electrical components. Optional equipment including an optical sensor, and pulse and frequency modulators improve noise immunity and reduce power consumption.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: July 14, 1992
    Assignee: JDR Systems Corporation
    Inventors: James D. Rodems, Gary A. Carner, Patrick J. Magari
  • Railway lubricating system and method
    Patent number: 4856617
    Abstract: A method and apparatus for controlling the amount of lubricant dispensed in a railway lubricating system wherein a test cycle is effected during which lubricant is dispensed in a test amount to detect the influence of lubricant viscosity on the system, and wherein further dispensing cycles are effected to sequentially dispense an accurate and desired amount of lubricant in conformity with the detected influence of lubricant viscosity.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: August 15, 1989
    Assignee: Moore & Steele Corporation
    Inventors: Stephen M. Lounsberry, III, Peter C. Lounsberry, James D. Rodems, Gary A. Carner
  • Electronic compensation network
    Patent number: 4805126
    Abstract: An electronic compensation network which allows the analytic and empirical realization of the compensation needed to optimize a system response. The electronic compensation network includes a switched capacitor active filter network; means for selectively changing filter characteristics; and, means for indicating the characteristics of the compensator which produces an optimized system response.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: February 14, 1989
    Inventor: James D. Rodems