Patents by Inventor Pierre Eyrard

Pierre Eyrard 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).

  • Cylinder-head gasket and method of making same
    Patent number: 4330585
    Abstract: A cylinder-head gasket has an elongated compressible heat-resistant sheet having a longitudinally extending succession of circular cylinder holes. Respective U-section sheet-metal rings are gripped over the edges of these holes on the sheet. Respective sections of reinforcement material are engaged between these rings and the sheet in a longitudinally extending central region of the sheet that has a width smaller than the diameter of the cylinder holes. The reinforcement material is different from the sheet metal of the rings and is heat resistant.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: May 18, 1982
    Assignee: Curty, Societe Anonyme
    Inventors: Pierre Eyrard, Jean-Paul Poquet