Patents by Inventor James W. Schaefer

James W. Schaefer 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).

  • Fiber containing filter media
    Publication number: 20040038013
    Abstract: Improved filtration media or filter bodies can be made from fine fiber and can be formed into a filtration structure having no internal defects. The filter media or filter body comprises a collection of spot in fiber with defined fiber diameter, layer thickness and media solidity. The fine fiber is formed into a media body and obtains substantial flux and filtration efficiency. The filtration media or body can comprise single or multiple layers of fine fiber combined into the improved filter body.
    Type: Application
    Filed: August 20, 2002
    Publication date: February 26, 2004
    Inventors: James W. Schaefer, Marty A. Barris, Thomas M. Weik
  • Fiber containing filter media
    Publication number: 20040038014
    Abstract: Improved filtration media or filter bodies can be made from fine fiber and can be formed into a filtration structure having no internal defects. The filter media or filter body comprises a collection of spot in fiber with defined fiber diameter, layer thickness and media solidity. The fine fiber is formed into a media body and obtains substantial flux and filtration efficiency. The filtration media or body can comprise single or multiple layers of fine fiber combined into the improved filter body.
    Type: Application
    Filed: April 7, 2003
    Publication date: February 26, 2004
    Applicant: Donaldson Company, Inc.
    Inventors: James W. Schaefer, Marty A. Barris, Thomas M. Weik