Patents by Inventor Walter O. Stadlin

Walter O. Stadlin 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).

  • Measuring system
    Patent number: 4240149
    Abstract: There is provided a method for measuring a parameter whose value is calculable as an integral with time of a function of at least one variable so as to make possible the use of a microprocessor when measurements of such variables are desired. The variable is sampled periodically at a frequency asynchronous with the wave form which the variable follows and then there is periodically calculated the value of the function by summing the values for the function determined by the samples taken during the time between the calculations, thus determining the desired integral.
    Type: Grant
    Filed: February 16, 1979
    Date of Patent: December 16, 1980
    Assignee: Leeds & Northrup Company
    Inventors: David L. Fletcher, Walter O. Stadlin
  • Measuring system
    Patent number: RE31774
    Abstract: There is provided a method for measuring a parameter whose value is calculable as an integral with time of a function of at least one variable so as to make possible the use of a microprocessor when measurements of such variables are desired. The variable is sampled periodically at a frequency asynchronous with the wave form which the variable follows and then there is periodically calculated the value of the function by summing the values for the function determined by the samples taken during the time between the calculations, thus determining the desired integral.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: December 18, 1984
    Assignee: Leeds & Northrup Company
    Inventors: David L. Fletcher, Walter O. Stadlin