Patents by Inventor Victor Duhem

Victor Duhem 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).

  • Rotating heat exchanger
    Patent number: 4146975
    Abstract: In a rotary heat exchanger, two groups of tubes are concentrically arranged about a drive shaft and the tubes have ports at their ends which are in communication with inlet and discharge chambers to which respective streams of gas are delivered so that two separate streams of gas may be circulated through the tubes. A solid granular material is supplied into the tubes of one group at one end and, near the other end, the tubes of the first and second groups are interconnected for passing the material from one group to the other.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: April 3, 1979
    Assignee: Fives-Cail Babcock
    Inventor: Victor Duhem