Patents by Inventor Vincent T. Guntlow

Vincent T. Guntlow 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).

  • Elapsed time indicator and electrolytic timer cell
    Patent number: 4100490
    Abstract: An elapsed time indicator includes an electrolytic timing cell in series connection with a resistor, which series circuit may be connected to a D.C. voltage. The cell is comprised of an aluminum can containing a liquid electrolyte with an aluminum anode immersed therein. During operation an aluminum oxide film is grown on the surfaces of the anode, the film thickness and resistance increasing with time. The voltage dropped across the cell of any instant is employed as an indication of the accumulated elapsed time during which the D.C. voltage has been connected to the circuit.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: July 11, 1978
    Assignee: Diametrics, Inc.
    Inventors: David B. Peck, Vincent T. Guntlow, Paul H. Netherwood