Patents by Inventor Charles R. Amos

Charles R. Amos 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).

  • Method for cleaning bag machinery
    Patent number: 5230744
    Abstract: A method and apparatus for continuous cleaning of bag making machinery is provided. A single roll with a cleaning material attached thereto contacts a rotating drum to remove debris from the surface thereof. When the portion of the cleaning material in contact with the drum becomes saturated with debris, the roll is rotated to present fresh cleaning material to the surface of the drum. The compact design of the cleaning apparatus permits its use in the limited space found around bag making machinery.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: July 27, 1993
    Assignee: Dowbrands L.P.
    Inventors: David A. Smith, Clark M. Woody, Philip G. Velez, Herbert B. Geiger, Charles R. Amos, Jr.
  • Process for the production of dead burned refractory magnesia
    Patent number: 4330525
    Abstract: High density, dead burned refractory magnesia (MgO) is produced by sintering compacts formed by simultaneously thermally dehydrating and mechanically working an aqueous slurry of magnesium hydroxide.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: May 18, 1982
    Assignee: The Dow Chemical Co.
    Inventors: Jack B. Reynolds, Charles R. Amos
  • Process for the production of dead burned refractory magnesia
    Patent number: 4243424
    Abstract: High density, dead burned refractory magnesia (MgO) is produced by sintering compacts formed by simultaneously thermally dehydrating and mechanical working an aqueous slurry of magnesium hydroxide.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: January 6, 1981
    Assignee: The Dow Chemical Company
    Inventors: Jack B. Reynolds, Charles R. Amos
  • Method of extruding thermoplastic resin foams having enlarged cell-sizes
    Patent number: 4229396
    Abstract: Extruded synthetic resinous thermoplastic foams of increased cell size are obtained when using volatile fluid blowing agents by incorporating a cell-size enlarging agent into the extruded composition, the cell-size enlarging agent being liquid at the foaming temperature and generally soluble in the heat-plastified foamable mixture.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: October 21, 1980
    Assignee: The Dow Chemical Company
    Inventors: Kyung W. Suh, Charles R. Amos