Patents by Inventor Ronald G. Hill

Ronald G. Hill 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: 6958118
    Abstract: A self-cleaning water filtration system includes a pre-filter to filter oils and relatively medium sized particles in a water flow, a multi-stage filter to purify and provide a second level of filtration to the water flow, and a self-cleaning filter to provide a third level of filtration to the water flow. Water flow through the filter media of the self-cleaning filter is redirected to flush waste to a containment-tank filter. The self-cleaning filter has a purge output, which may spray the pre-filter to substantially remove particles from the pre-filter for collection in the containment tank. The multi-stage filter may have at least two layers of filter media. The pre-filter may be disposable and comprised of a mineral sanitizer positioned between two layers of an oil absorbing fabric.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: October 25, 2005
    Assignee: MAAX, Inc.
    Inventors: Ronald G. Hill, John Johnson, Michael Wheat
  • Publication number: 20040040902
    Abstract: A self-cleaning water filtration system includes a pre-filter to filter oils and relatively medium sized particles in a water flow, a multi-stage filter to purify and provide a second level of filtration to the water flow, and a self-cleaning filter to provide a third level of filtration to the water flow. Water flow through the filter media of the self-cleaning filter is redirected to flush waste to a containment-tank filter. The self-cleaning filter has a purge output, which may spray the pre-filter to substantially remove particles from the pre-filter for collection in the containment tank. The multi-stage filter may have at least two layers of filter media. The pre-filter may be disposable and comprised of a mineral sanitizer positioned between two layers of an oil absorbing fabric. The water flow through the filter media of the self-cleaning filter may be redirected in response to an occurrence of either a change in output water pressure or an indication from a timer occurring on a regular basis.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 4, 2004
    Applicant: MAAX Inc.
    Inventors: Ronald G. Hill, John Johnson, Michael Wheat