Patents by Inventor Dennis Leach

Dennis Leach 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: 4979081
    Abstract: The invention relates to an electrical supply system for electrical lighting installations and the like. The system comprises a track having an elongate insulating member housing first and second conductors extending longitudinally in spaced apart relationship and a plurality of like connectors each having attachment means operable to attach the connector to the track at a continuously adjustable position along its length and contact means making electrical contact with the track when so attached. Each connector is selectively attachable in either a first or a second orientation relative to the track such that the contact means makes electrical contact with only the first or second conductor respectively. Such an arrangement allows the connectors to be of simple construction and can be used with any number of different electrical loads.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: December 18, 1990
    Assignee: Courtney Pope Lighting Limited
    Inventors: Dennis Leach, Clive Dinmore
  • Patent number: 4874320
    Abstract: A light rail system for supporting light fixtures which is flexible so as to conform to curved and irregular surfaces. The light rail has two strips, fabricated from a single piece of conductive material, surrounded by upper and lower tracks of thermoplastic material. Extensions from the strips form contact tabs which are folded perpendicular to the strips, and extend through slits in the upper track. Source plugs integral with the conductive strips mate with a feed plug providing external electricity. A special coupler allows several rails to be joined together.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: October 17, 1989
    Inventors: Herbert D. Freed, Dennis Leach