Patents by Inventor Duncan Boniface

Duncan Boniface 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).

  • Loudspeaker having an outer edge
    Publication number: 20060096803
    Abstract: A loudspeaker, particularly for use as a guitar loudspeaker, has an undulating lateral extension (18) at the outer edge of the cone-piston (16) and an undulating surround (26) which is bonded to the lateral extension in overlapping relationship thereto, with the overlap zone (D) being laterally outwardly of a peak at the outer edge of the cone piston. The cone (16) is preferably of paper and the surround (26) of cloth material.
    Type: Application
    Filed: August 15, 2003
    Publication date: May 11, 2006
    Inventors: Ian White, Duncan Boniface
  • Loudspeaker pole piece and loudspeaker assembly
    Publication number: 20020094105
    Abstract: A generally cylindrical pole piece for a moving coil loudspeaker includes a blind recess in the axial end face that faces an air-permeable dust cap. The recess is lined with a plurality of spaced ribs or fins to increase the surface area available for heat dissipation. The recess and ribs are preferably tapered, to enable the pole piece to be made as a forging.
    Type: Application
    Filed: February 20, 2002
    Publication date: July 18, 2002
    Applicant: KH Technology Corporation
    Inventor: Duncan Boniface