Patents Assigned to Centre d'Etudes et de Recherches de la Machine-Outil (C.E.R.M.O.)
  • Patent number: 4413863
    Abstract: The invention relates to a hydrostatic support device placed between two elements movable one with respect to the other, comprising a hydrostatic guide-block, a magnet being mounted on one of the said elements, opposite the second element, so that the latter is traversed by the lines of magnetic forces pulling the second element towards the first element.This device comprises a demagnetizing circuit associated to each magnet and constituted by an A.C.-supplied electro-magnet.The present invention finds an application in the production of hydrostatic guide-blocks for use in the construction of machine-tools.
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: November 8, 1983
    Assignee: Centre d'Etudes et de Recherches de la Machine-Outil (C.E.R.M.O.)
    Inventor: Jean Lombard
  • Patent number: 4368930
    Abstract: A guiding device comprises a support, including a first substantially planar guiding surface; a movable body adapted to be guided on the support, and including a second substantially planar guiding surface; and a plurality of hydrostatic guide blocks disposed between the first and second guiding surfaces, each guide block including a first hydrostatic bearing portion connected to a source of pressurized fluid for slidably connecting either the movable body or the support to the respective guide block, and a second hydrostatic bearing portion connected to the source of pressurized fluid for slidably connecting the other of the movable body and the support to the respective guide block, and in which each of the first and second bearing portions includes a flow restriction for restricting the flow of fluid from the source of pressurized fluid to the respective bearing portion, whereby fluid flows from the source to the first bearing portion without passing through the second bearing portion and fluid flows from
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: January 18, 1983
    Assignee: Centre d'Etudes et de Recherches de la Machine-Outil (C.E.R.M.O.)
    Inventor: Pierre J. M. Duchaine