Patents Assigned to Leveur S.A.R.L.
  • Upright and seating positioning device with particular application to armchairs, chairs or fixed or mobile seats
    Patent number: 4938533
    Abstract: The invention relates to an upright positioning structure with a pushing bar applying the upright positioning and pushing effort to the sub femoral area (3) and more particularly the ischial-femoral angle (3) of the user, pressing against the ischial projections of the user's pelvis and providing a resistance to forward sliding during the lifting up movement, the buttock and lumbar region of the user remaining outside of the pushing bar and unsupported.This structure is particularly applied to armchairs or fixed or mobile seats.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: July 3, 1990
    Assignee: Leveur S.A.R.L.
    Inventor: Alain Thielois