Patents by Inventor Michael Hillas Shearon

Michael Hillas Shearon 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).

  • Rotary web chopper
    Patent number: 4080856
    Abstract: An apparatus for the high-speed transverse severing of equi-sized sheets from a running web utilizing interacting blades carried by power-driven counter-rotating shafts, with vacuum retention of the web on one shaft of the apparatus as carrier over substantially from the point of web input to the apparatus to at least the point of web severance.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: March 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Michael Hillas Shearon
  • Rotary web chopper
    Patent number: 4041816
    Abstract: An apparatus for the high-speed transverse severing of sheets from a running web utilizing interacting blades carried by counter-rotating shafts, with wrap around and retention of the web on one shaft. The blade on the other shaft has a shaped surface which defines an epitrochoid profile along its entire length. The blade on the one shaft has a straight cutting edge which accurately engages an opposed cutting edge defined by the intersection of said shaped surface and the outer peripheral surface of said blade.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: August 16, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Michael Hillas Shearon