Patents by Inventor Urbain Du Plessis

Urbain Du Plessis 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).

  • Indirect lighting system
    Patent number: 8596830
    Abstract: An apparatus where an indirect lighting system is adapted to direct light to a target. The primary optics are arranged to eject a flat beam of uniform intensity light onto an assembly of fractal reflector modules that reflect the beam to the target. The primary optics comprise a light source, and a reflector of stepped facets, located on the surface of a parabolic reflector; the shape and location of each facet being calculated to provide a uniform intensity flat beam.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: December 3, 2013
    Assignee: Hella KGAA Hueck & Co.
    Inventor: Urbain du Plessis
  • INDIRECT LIGHTING SYSTEM
    Publication number: 20120044694
    Abstract: An apparatus where an indirect lighting system is adapted to direct light to a target. The primary optics are arranged to eject a flat beam of uniform intensity light onto an assembly of fractal reflector modules that reflect the beam to the target. The primary optics comprise a light source, and a reflector of stepped facets, located on the surface of a parabolic reflector; the shape and location of each facet being calculated to provide a uniform intensity flat beam.
    Type: Application
    Filed: March 3, 2010
    Publication date: February 23, 2012
    Inventor: Urbain du Plessis
  • ELECTRICAL CONNECTOR
    Publication number: 20100048049
    Abstract: An electrical connector assembly comprising a pair of male connectors adapted to butt together, end to end, to complete an electrical connection, and a hollow barrel to accommodate the male connectors, the barrel having latch means to force the male connectors into abutting contact.
    Type: Application
    Filed: May 14, 2007
    Publication date: February 25, 2010
    Applicant: HELLA ASIA PACIFIC PTY LTD.
    Inventor: Urbain Du Plessis
  • OPTICAL WARNING DEVICE
    Publication number: 20090195403
    Abstract: An optical warning device comprising a light source located within a housing having a wall, a top and a base, the base supporting the light source positioned in front of a reflector to transmit light through a light transmitting surface forming part of the wall of the housing, the top of the housing including an absorber comprising an outwardly facing light shielding surface and an inwardly facing surface profiled to entrap light.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Inventor: Urbain DU PLESSIS
  • Filter
    Publication number: 20060199507
    Abstract: Electrical equipment comprising a sealed chamber in which an electrical appliance is housed, and a multi-stage breather filter attached to the sealed chamber whereby in use heat generated by the electrical appliance causes air flow through the filter and also dries moisture collected by the filter.
    Type: Application
    Filed: December 24, 2003
    Publication date: September 7, 2006
    Inventor: Urbain Du Plessis