Patents by Inventor Zakir Ahmad Quabili

Zakir Ahmad Quabili 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).

  • Tubular acoustic silencer
    Patent number: 7497301
    Abstract: An acoustic silencer is provided by a tubular member extending along an axis and having a hollow interior defining an axial flow path therethrough. The tubular member has a sidewall with an interior face facing the hollow interior and having quarter wave resonators formed by blind holes therein.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: March 3, 2009
    Assignee: Fleetguard, Inc.
    Inventors: C. Raymond Cheng, Zakir Ahmad Quabili, Larry T. Gunderson, Mark V. Holzmann
  • Performance air filtration cartridge
    Patent number: 7377954
    Abstract: An air filtration cartridge has annular filter media having a hollow interior and extending axially between first and second distally opposite end caps. The first end cap is an outlet end cap having flow straightening structure integrally formed therewith and spanning the hollow interior. The second end cap is a closed end cap having an interior face having quarter wave resonators formed by blind holes therein.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: May 27, 2008
    Assignee: Fleetguard, Inc.
    Inventors: Larry T. Gunderson, Christopher E. Holm, Kelly R. Schmitz, Zakir Ahmad Quabili, C. Raymond Cheng