Patents by Inventor David G. Hild

David G. Hild 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).

  • Hydrocyclone with finely tapered tail section
    Patent number: 5225082
    Abstract: A hydrocyclone separator for separating oil from water includes a substantially cylindrical first portion with a central overflow outlet and at least one tangential flow inlet, at least one converging section, and a tail portion with a central underflow outlet having a substantial length thereof characterized by a slight taper in the range of 1 to less than 15 degree-minutes.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: July 6, 1993
    Assignee: Amoco Corporation
    Inventors: Grant A. Young, Davis L. Taggart, David G. Hild, David W. Simms, J. Robert Worrell
  • Method of oil/water separation utilizing coalescing bodies
    Patent number: 5145586
    Abstract: This invention relates to water pollution control and concerns a method for removing dispersed oil droplets from water by contacting oleophilic bodies with an oil-water emulsion before the emulsion is separated in a settling tank. Oleophilic bodies which float on oil are provided in a settling tank into which an oil-water emulsion is introduced downwardly. Oil-free water is drawn off at the bottom of the tank.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: September 8, 1992
    Assignee: Amoco Corporation
    Inventors: Davis L. Taggart, Russell L. McGalliard, Ralph R. Eguren, David G. Hild