Patents by Inventor Jean-Louis Landais

Jean-Louis Landais 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: 4858074
    Abstract: The invention provides a method for assembling power circuits and control circuits on several levels in the same module and the module thus obtained, which method consists in grouping on one so called low level the power circuits (1) in grouping on at least one so called mid-height level (3) the control circuits, in forming the electric connections between the circuits of the two levels of elements in the form of helical springs (4) made from a relatively rigid and weldable metal material, disposed vertically, in welding the lower ends of the springs (4) to the appropriate positions of the circuits of the low level (1) while holding the springs in position by means of a guide plate (13), in fixing the wall (6) of the module, in placing inside the wall, by means of positioning projections, (8) the substrate (3) carrying the control circuits, in welding the upper ends of the springs (4) to the appropriate positions on the upper face of the substrate and, finally, in filling the inside of the wall with resin.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: August 15, 1989
    Assignee: Power Compact, Societe Anonyme
    Inventors: Jean-Louis Mallet, Jean-Louis Landais
  • Patent number: 4836808
    Abstract: The invention relates to a captive nut terminal for an electronic module power connector (4,4'), of the type comprising a lug (4b) projecting above the resin embedding the circuits of the module, bent at right angles above the upper face of the module and having a hole (6) for the subsequent passage of a screw for connection to an external terminal and a nut disposed under said lug in line with the hole, said terminal being characterized in that the nut is held captive in a housing (8) of a size and shape allowing the nut a slight multidirectional play but preventing rotation thereof, said housing being formed in the upper face of a piece (7,7') fixed to and positioned on the connector (4,4'), under the lug (4b), and having, on at least one of its sides, a hollow (13) for anchoring said piece in said resin.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: June 6, 1989
    Assignee: Power Compact, Societe Anonyme
    Inventors: Jean-Louis Mallet, Jean-Louis Landais