Patents by Inventor Robert W. Hartung

Robert W. Hartung 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).

  • Biological treatment system and assembly
    Patent number: 7491325
    Abstract: An assembly for supporting biomass for treating sludge or wastewater includes a first corrugated sheet having crests and valleys, a second corrugated sheet having crests and valleys and an intermediate member mounted between the first and second corrugated sheets. The crests have peak surfaces and the valleys have trough surfaces. The first corrugated sheet has a first longitudinal axis and the second corrugated sheet has a second longitudinal axis. The corrugations of the first corrugated sheet define a first corrugation angle of about zero degrees (0°) to about forty-five degrees (45°) relative to the first longitudinal axis and the corrugations of the second corrugated sheet define a second corrugation angle of about zero degrees (0°) to about forty-five degrees (45°) relative to the second longitudinal axis. The second corrugated sheet is mounted to the first corrugated sheet and the intermediate member has openings therein.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: February 17, 2009
    Assignee: Brentwood Industries, Inc.
    Inventors: Frank M. Kulick, III, Timothy E. Krell, Robert W. Hartung, Curtis S. McDowell
  • BIOLOGICAL TREATMENT SYSTEM AND ASSEMBLY
    Publication number: 20080093294
    Abstract: An assembly for supporting biomass for treating sludge or wastewater includes a first corrugated sheet having crests and valleys, a second corrugated sheet having crests and valleys and an intermediate member mounted between the first and second corrugated sheets. The crests have peak surfaces and the valleys have trough surfaces. The first corrugated sheet has a first longitudinal axis and the second corrugated sheet has a second longitudinal axis. The corrugations of the first corrugated sheet define a first corrugation angle of about zero degrees (0°) to about forty-five degrees (45°) relative to the first longitudinal axis and the corrugations of the second corrugated sheet define a second corrugation angle of about zero degrees (0°) to about forty-five degrees (45°) relative to the second longitudinal axis. The second corrugated sheet is mounted to the first corrugated sheet and the intermediate member has openings therein.
    Type: Application
    Filed: October 20, 2006
    Publication date: April 24, 2008
    Applicant: BRENTWOOD INDUSTRIES, INC.
    Inventors: Frank M. Kulick, Timothy E. Krell, Robert W. Hartung, Curtis S. McDowell