Patents by Inventor Clyde R. Axtell, III

Clyde R. Axtell, III 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).

  • Universal analog and digital tester
    Patent number: 4271515
    Abstract: Method and apparatus for comparison-type testing of electronic devices which generate analog waveform output signals. A reference unit output signal and an output signal of a unit under test are paired and selectively and synchronously compared in response to a common input signal. The comparison is performed by means of subtraction producing an error signal, which error signal is compared against a limit window. The limit window may have fixed or preferably programmable amplitude limits whereby a digital decision signal is generated whenever the limits are exceeded.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: June 2, 1981
    Assignee: John Fluke Mfg. Co., Inc.
    Inventors: Clyde R. Axtell, III, Richard B. Drabing
  • System for locating electrical shorts by tracking the paths of injected pulse currents utilizing a voltage differential responsive probe
    Patent number: 4115731
    Abstract: Disclosed is a system for locating electrical shorts between a pair of conductors. A current is tracked along the conductors and/or their branch conductors until the current path disappears at a location where there is no intentional conductor branching.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: September 19, 1978
    Assignee: Digital Facilities, Inc.
    Inventor: Clyde R. Axtell, III