Patents by Inventor Donovan L. Isdahl

Donovan L. Isdahl 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).

  • Cable continuity test system
    Patent number: 6803769
    Abstract: A cable continuity test system, comprising a terminator unit electrically connected to a first side of a cable to be tested, and a test set unit electrically connected to a first side of the cable. The test set unit includes a display and further includes a microprocessor adapted for performing standard continuity tests. The test unit stores records for each site tested with a time and date stamp. The terminator unit is a programmable unit, and preferably is capable of being programmed with a unique terminator ID between the numbers of 00 and 99.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: October 12, 2004
    Assignee: Independent Technologies, Inc.
    Inventors: David L. Ingalsbe, Jeffrey A. Deming, Donovan L. Isdahl
  • Cable continuity test system
    Publication number: 20030107383
    Abstract: A cable continuity test system, comprising a terminator unit electrically connected to a first side of a cable to be tested, and a test set unit electrically connected to a first side of said cable. The test set unit includes a display and further includes a microprocessor adapted for performing standard continuity tests. The test unit stores records for each site tested with a time and date stamp. The terminator unit is a programmable unit, and preferably is capable of being programmed with a unique terminator ID between the numbers of 00 and 99.
    Type: Application
    Filed: June 19, 2002
    Publication date: June 12, 2003
    Inventors: David L. Ingalsbe, Jeffrey A. Deming, Donovan L. Isdahl