Patents by Inventor Bruno Querlioz

Bruno Querlioz 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).

  • Electromagnetic relay polarized by a permanent magnet
    Patent number: 5126710
    Abstract: A high-sensitivity electromagnetic relay comprises a magnetic circuit polarized by a permanent magnet, a flux distributor, an operating coil, and a moving core cooperating with the flux distributor by means of an air-gap. A return spring passes completely through the core being inserted between the flux distributor and the external end of a guide tube, which is shaped as a bottle-neck having a widened part housing the core, and a narrow part capable of sliding in an aperture.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: June 30, 1992
    Assignee: Merlin Gerin
    Inventors: Pierre Schueller, Pierre Laffont, Bruno Querlioz