Patents by Inventor Purnachandra G. Pai

Purnachandra G. Pai 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).

  • Apparatus for producing gas-air concentrations
    Patent number: 5077016
    Abstract: Accordingly, the present invention is an apparatus for mixing gas and air to obtain a plurality of predetermined gas-air concentrations including means for supplying gas from a constant pressure gas source. A conduit has a first end connected to the supplying means and a second end connected to a means for diffusing air with the gas to obtain a predetermined gas-air concentration.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: December 31, 1991
    Assignee: Michigan Consolidated Gas Company
    Inventors: Richard E. Layng, Linda Deschere, Gunther J. Evanina, Purnachandra G. Pai