Patents by Inventor Fritz Ewing

Fritz Ewing 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).

  • System for determining integrity of a gas-sealed compartment
    Patent number: 6196056
    Abstract: A system is provided for detecting a seal fault in units which include sealed gaseous portions. The system includes an electro-negative tracer gas inserter for inserting an electro-negative tracer gas within the sealed portion of the unit, a gas sampler for sampling a flow of gas proximate the object containing the tracer gas and an electron capture detector connected to the gas sampler for monitoring the gas for the presence of the electro-negative test gas. The system thereby determines a presence or absence of the seal fault in the sealed portion of the unit.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: March 6, 2001
    Assignee: Vacuum Instrument Corp.
    Inventors: Fritz Ewing, Stuart Linzer