Patents by Inventor Glenn Graff

Glenn Graff 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).

  • Patent number: 10407332
    Abstract: A wastewater treatment system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to a tertiary filter downstream of the biological reactor. The lift station receives biologically treated liquid from the tertiary filter and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a preliminary filter and a salt-rejecting membrane filter having a recycle conduit operatively connected to recirculate salt-rejecting membrane filter, thereby forming a salt concentration loop between biological reactor and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and includes an adsorbent and oxidation system.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 10, 2019
    Assignee: TANGENT COMPANY LLC
    Inventors: William C. Prior, James E. Bolton, Lyle E. Kirman, David F. Rath, Adam Arnold, Glenn Graff, Kevin J. Elliott
  • Publication number: 20180009691
    Abstract: A wastewater recycling system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to the biological reactor. The lift station receives biologically treated liquid from the biological reactor and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a salt-rejecting membrane filter comprising a concentrate recirculation conduit operatively connected to recirculate salt-rejecting membrane filter concentrate to a point along the wastewater recycling system upstream of the salt-rejecting membrane filter, thereby forming a salt concentration loop between said point along the wastewater recycling system and the salt-rejecting membrane filter.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 11, 2018
    Inventors: William C. Prior, James E. Bolton, Lyle E. Kirman, David F. Rath, Adam Arnold, Glenn Graff, Kevin J. Elliott
  • Patent number: 9809479
    Abstract: A wastewater recycling system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to the biological reactor. The lift station receives biologically treated liquid from the biological reactor and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a salt-rejecting membrane filter comprising a concentrate recirculation conduit operatively connected to recirculate salt-rejecting membrane filter concentrate to a point along the wastewater recycling system upstream of the salt-rejecting membrane filter, thereby forming a salt concentration loop between said point along the wastewater recycling system and the salt-rejecting membrane filter.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: November 7, 2017
    Assignee: TANGENT COMPANY LLC
    Inventors: William C. Prior, James E. Bolton, Lyle E. Kirman, David F. Rath, Adam Arnold, Glenn Graff, Kevin J. Elliott
  • Publication number: 20140151294
    Abstract: A wastewater recycling system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to the biological reactor. The lift station receives biologically treated liquid from the biological reactor and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a salt-rejecting membrane filter comprising a concentrate recirculation conduit operatively connected to recirculate salt-rejecting membrane filter concentrate to a point along the wastewater recycling system upstream of the salt-rejecting membrane filter, thereby forming a salt concentration loop between said point along the wastewater recycling system and the salt-rejecting membrane filter.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: Tangent Company LLC
    Inventors: William C. Prior, James E. Bolton, Lyle E. Kirman, David F. Rath, Adam Arnold, Glenn Graff, Kevin J. Elliot