Patents by Inventor John K. Pickrell

John K. Pickrell 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).

  • Retention and removal of debris and pollutants from surface water runoff
    Patent number: 7001507
    Abstract: A system to restrict and remove debris and pollutants from runoff water received from surrounding areas. A receptacle receives the runoff water, and a grate detains the heavier part of its solids burden. A first screen within the receptacle detains solids of lesser size. Water passed by the first screen encounters a tubular second screen in the receptacle which passes water that was additionally screened by it and sends it to a downstream system. A weir at a sensitive level in the receptacle can by-pass the second screen. The second screen is preferably rotatable.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: February 21, 2006
    Assignee: Carson Industries LLC
    Inventors: Michael M. Orozco, John K. Pickrell
  • Retention and removal of debris and pollutants from surface water runoff
    Publication number: 20040232057
    Abstract: A system to restrict and remove debris and pollutants from runoff water received from surrounding areas. A receptacle receives the runoff water, and a grate detains the heavier part of its solids burden. A first screen within the receptacle detains solids of lesser size. Water passed by the first screen encounters a tubular second screen in the receptacle which passes water that was additionally screened by it and sends it to a downstream system. A weir at a sensitive level in the receptacle can by-pass the second screen. The second screen is preferably rotatable.
    Type: Application
    Filed: May 22, 2003
    Publication date: November 25, 2004
    Applicant: Carson Industries, LLC
    Inventors: Michael M. Orozco, John K. Pickrell