Patents by Inventor Graf Felix

Graf Felix 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).

  • Web crushing arrangement for a card web
    Patent number: 4352223
    Abstract: A web crushing arrangement for a card web comprises cooperating working rolls (6,7) which are supported by a pressure-loadable support member (23), elastic pressure transmitting means (26,29) being provided between the working roll (7) and the support member (23). By supplying compressed air between the surface of the working roll (7) and the pressing surface (27), of the pressing slat (26) facing and shaped to be complementary to it, an air film is generated between the complementary surfaces.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: October 5, 1982
    Assignee: Rieter Machine Work, Ltd.
    Inventors: Graf Felix, Armin Wirz, Giancarlo Mondini