Patents by Inventor Patrick Baudrier

Patrick Baudrier 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).

  • Profiles of screw-type rotors for rotary machines conveying a gaseous fluid
    Patent number: 5002472
    Abstract: The present invention provides an improved rotary machine of the type having male and female rotors with complementary intermeshing helical teeth. The improvement relates to the profile of the teeth, particularly the teeth of the male rotor, so that there is a reduction of the phenomenon of wedging of the sealing, lubricating or cooling liquid molecules and a reduction of the wedging of the molecules of gaseous fluid between the bores and apices of the teeth. The improved profile of the teeth and the resulting reduction of the wedging phenomenon prevents a loss of power which is typical in the prior art screw-type rotary machines.
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: March 26, 1991
    Assignee: Societe Anonyme: Baudot-Hardoll S.A.
    Inventors: Bernard R. A. G. Helliot, Patrick Baudrier