Patents by Inventor Michael James Twork

Michael James Twork 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).

  • Accoustic chamber integrated with vehicle door
    Patent number: 6578658
    Abstract: An acoustic chamber formed in door of a vehicle includes a metal door inner panel having an aperture extending therethrough, and a door module secured in the aperture of the door inner panel. The door module includes an indentation and may be made of a polymer or a fibrous material. An interior door trim panel overlies the door module and a loudspeaker is secured between the interior door trim panel and the door module. The interior door trim panel may include a bulge opposing the indentation in the door module, with the loudspeaker located between the bulge and the indentation. A sealing element is secured between the door module and the interior door trim panel for defining an acoustic chamber between the door module and the interior door trim panel. The acoustic chamber enhances the performance of the loudspeaker, thereby allowing a smaller loudspeaker to be used.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: June 17, 2003
    Assignee: SAI Automotive USA-SAL, Inc.
    Inventors: Stephen P. Jones, Michael James Twork, Karl Jon Mertz, Said Ali Shebak
  • Accoustic chamber integrated with vehicle door
    Publication number: 20010030078
    Abstract: An acoustic chamber formed in door of a vehicle includes a metal door inner panel having an aperture extending therethrough, and a door module secured in the aperture of the door inner panel. The door module includes an indentation and may be made of a polymer or a fibrous material. An interior door trim panel overlies the door module and a loudspeaker is secured between the interior door trim panel and the door module. The interior door trim panel may include a bulge opposing the indentation in the door module. A sealing element is secured between the door module and the interior door trim panel for defining an acoustic chamber between the door module and the interior door trim panel. The acoustic chamber enhances the performance of the loudspeaker, thereby allowing a smaller loudspeaker to be used.
    Type: Application
    Filed: January 11, 2001
    Publication date: October 18, 2001
    Inventors: Stephen P. Jones, Michael James Twork, Karl Jon Mertz, Said Ali Shebak