Patents by Inventor Karel GHELDOF

Karel GHELDOF 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).

  • Patent number: 12563326
    Abstract: A loudspeaker assembly for use outdoors. The loudspeaker assembly includes: a loudspeaker, including a drive unit and a diaphragm, wherein the drive unit is configured to move the diaphragm along a movement axis, a grille, positioned in front of a front face of the loudspeaker, the grille being configured to permit sound produced by the front face of the diaphragm to pass through the grille, and to inhibit the ingress of water incident on the front face of the grille from entering into a space enclosed between a rear face of the grille and the front face of the loudspeaker.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: February 24, 2026
    Assignee: PSS BELGIUM NV
    Inventors: Karel Gheldof, Kurt Vandijck, Fabian Vuine
  • Publication number: 20240163593
    Abstract: A loudspeaker assembly for use outdoors. The loudspeaker assembly includes: a loudspeaker, including a drive unit and a diaphragm, wherein the drive unit is configured to move the diaphragm along a movement axis, a grille, positioned in front of a front face of the loudspeaker, the grille being configured to permit sound produced by the front face of the diaphragm to pass through the grille, and to inhibit the ingress of water incident on the front face of the grille from entering into a space enclosed between a rear face of the grille and the front face of the loudspeaker.
    Type: Application
    Filed: March 10, 2023
    Publication date: May 16, 2024
    Inventors: Karel Gheldof, Kurt Vandijck, Fabian Vuine
  • Patent number: 11924621
    Abstract: A loudspeaker includes a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a magnetic gap. The magnetic gap is located between a first portion of the magnet unit located radially inwards of the magnetic gap with respect to a longitudinal axis of the loudspeaker and a second portion of the magnet unit located radially outwards of the magnetic gap with respect to the longitudinal axis of the loudspeaker. A voice coil is configured to sit in the magnetic gap when the diaphragm is in a rest position.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: March 5, 2024
    Assignee: PSS BELGIUM NV
    Inventor: Karel Gheldof
  • Publication number: 20220248142
    Abstract: A loudspeaker includes a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a magnetic gap. The magnetic gap is located between a first portion of the magnet unit located radially inwards of the magnetic gap with respect to a longitudinal axis of the loudspeaker and a second portion of the magnet unit located radially outwards of the magnetic gap with respect to the longitudinal axis of the loudspeaker. A voice coil is configured to sit in the magnetic gap when the diaphragm is in a rest position.
    Type: Application
    Filed: May 26, 2020
    Publication date: August 4, 2022
    Inventor: Karel GHELDOF