Patents by Inventor Donnell Cooper

Donnell Cooper 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 forming compressible material into discrete solid blocks
    Patent number: 5582846
    Abstract: An apparatus for forming compressible material into discrete solid blocks or briquettes in which the material is compressed in a compression chamber by a pre-press ram and a main ram. A control system is provided which includes sensors for generating signals that are a function of the density of the compressed and densified material within the compression chamber, and an arrangement which is responsive to the sensors is provided for varying the operation of the material feeding device to change the volumetric flow of material fed to the compression chamber in response to predetermined changes in the density of the material in the chamber.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: December 10, 1996
    Assignee: Pneumafil Corporation
    Inventors: Donnell Cooper, Bobby L. Starling
  • Method for forming compressible material into discrete solid blocks
    Patent number: 5326511
    Abstract: A method and apparatus for forming compressible material into discrete solid blocks or briquettes in which the material is compressed in a compression chamber by a pre-press ram and a main ram. A control system is provided which includes sensors for generating signals that are a function of the density of the compressed and densified material within the compression chamber, and an arrangement which is responsive to the sensors is provided for varying the operation of the material feeding device to change the volumetric flow of material fed to the compression chamber in response to predetermined changes in the density of the material in the chamber.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: July 5, 1994
    Assignee: Pneumafil Corporation
    Inventors: Donnell Cooper, Bobby L. Starling