Patents by Inventor Boyd F. Agnew, deceased

Boyd F. Agnew, deceased 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).

  • High efficiency particulate air filter and separators
    Patent number: 4801317
    Abstract: This invention relates to a pleated high efficiency particulate air filter and separators therefor in which the separators for filter media to be wound therearound comprise a lattice with tapered struts or spacers, a rounded pleat fold contacting member, and vertically spaced apart air inlet and outlet media supporting flat members to provide uniform internal support for the pleats. The struts are formed to provide a tapered space between filter media and the struts after the media is wound around the separators.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: January 31, 1989
    Inventors: Boyd F. Agnew, deceased, by Gertrude B. F. Agnew, legal representative