Patents by Inventor Allan N. Cohan

Allan N. Cohan 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).

  • Apparatus for removing water from aqueous sludge waste compositions
    Patent number: 5653872
    Abstract: Process for producing free-flowing solid material from an aqueous sludge waste composition that includes mixing the sludge with previously dried solids, pelletizing the composition to form strand-like material, drying the outside layer of the strand-like material, and drying the partially dried material by contacting with heated gas.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: August 5, 1997
    Inventor: Allan N. Cohan
  • Process for producing round spherical free flowing blown bead food products of controlled bulk density
    Patent number: 4180593
    Abstract: Food products in the form of blown beads are prepared by spraying a composition into a heated zone to dry and expand the sprayed product followed by subjecting the product to a cooling zone to thereby quench cool and to thereby aid in the control of their bulk density.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: December 25, 1979
    Inventor: Allan N. Cohan