Patents by Inventor Alvin E. Steelman

Alvin E. Steelman 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).

  • Silicate defoaming composition and methods
    Patent number: 5843336
    Abstract: Defoaming formulations for aqueous systems are produced by treating silicates such as sodium magnesium aluminosilicates with a source of aluminum to provide an aluminum content therein in the range of 0.1 to 2.5 wt. %, preferable 0.3 to 1.2 wt. %, and forming a defoaming formulation from said aluminum treated silicate by hydrophobizing with a silicone fluid, and dispersing in oil and/or water to form a defoamer formulation.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: December 1, 1998
    Assignee: J.M. Huber Corporation
    Inventor: Alvin E. Steelman
  • Silicate defoaming composition and methods
    Patent number: 5575950
    Abstract: Defoaming formulations for aqueous systems are produced by treating silicates such as sodium magnesium aluminosilicates with a source of aluminum to provide an aluminum content therein in the range of 0.1 to 2.5 wt. %, preferable 0.3 to 1.3 wt. %, and forming a defoaming formulation from said aluminum treated silicate by hydrophobizing with a silicone fluid, and dispersing in oil and/or water to form a defoamer formulation.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: November 19, 1996
    Assignee: J. M. Huber Corporation
    Inventor: Alvin E. Steelman
  • Web member for improved in-car slurrying
    Patent number: 4830546
    Abstract: An improved method for slurrying bulk dry powder material within a hopper car is described. The method includes providing a static web of individual strands extending through the interior of the hopper compartment so that when water is admitted to the bottom of the hopper car, the water will travel upwardly along the strands of the web and through the dry bulk material to wet the same.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: May 16, 1989
    Assignee: J. M. Huber Corporation
    Inventors: Michael C. Withiam, Alvin E. Steelman