Patents by Inventor Walter Stone

Walter Stone 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).

  • Multistage high capacity and depth coalescing media system
    Patent number: 9604167
    Abstract: A filter assembly having a first stage filter that filters particulates from fluid flowing through the filter and a second stage filter downstream of the first stage filter that coalesces water from the fluid. By providing the first stage filter upstream of the second stage filter, particulate filtration capacity and efficiency may be provided while protecting the second stage filter from particulates. Protecting the second stage filter from particulates allows for the life of the second stage filter to be extended while providing efficient emulsion removal in the filter assembly.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 28, 2017
    Assignee: Parker-Hannifin Corporation
    Inventors: Peter Popoff, Walter Stone
  • MULTISTAGE HIGH CAPACITY AND DEPTH COALESCING MEDIA SYSTEM
    Publication number: 20140197090
    Abstract: A filter assembly having a first stage filter that filters particulates from fluid flowing through the filter and a second stage filter downstream of the first stage filter that coalesces water from the fluid. By providing the first stage filter upstream of the second stage filter, particulate filtration capacity and efficiency may be provided while protecting the second stage filter from particulates. Protecting the second stage filter from particulates allows for the life of the second stage filter to be extended while providing efficient emulsion removal in the filter assembly.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 17, 2014
    Inventors: Peter Popoff, Walter Stone