The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 1990
Filed:
Feb. 24, 1989
Philippe Joseph, Carpentras, FR;
S.A.M.M.-Societe d'Applications des Machines Motrices, Bievres, FR;
Abstract
The damper comprises a fixed body (1A, 1B) provided with ports (3, 4) for the passage of hydraulic fluid, stacks (7) of flexible washers disposed in rigid deflectors (8) placed on each side of the body (1A, 1B) in facing relation to the ports (3, 4) and recesses and tubular inserts (5, 6) for allowing the passage of the fluid in only one direction for some ports (3) and in the opposite direction for the other ports (4). A disc (9) provided with at least two series of orifices (11, 12) having different diameters is disposed in the body. The orifices are arranged to be capable of coming into confronting relation with the ports (3, 4) of the body. The disc (9) is rotated through a given angle so as to place one of the series of orifices of the disc (9) in correspondence with the ports (3, 4) of the body. This arrangement permits adjusting the degree of damping so as to obtain the desired hardness or softness for the suspension in accordance with the utilization of the vehicle.