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:
Jun. 05, 1984
Filed:
May. 18, 1982
Takeyoshi Shinbori, Yokosuka, JP;
Yoshio Kimura, Yokohama, JP;
NHK Spring Co., Ltd., Yokohama, JP;
Abstract
An apparatus for controlling friction between the leaf springs of a laminated leaf spring assembly comprises a clamp mounted on the laminated leaf spring assembly for clamping the assembly in the direction of its thickness, and a hydraulic cylinder urging the laminated leaf spring assembly against a supporting member of the clamp. A return spring having a number of initially coned disc springs is disposed in a rod chamber of the hydraulic cylinder. The pressure of a pressurized fluid supplied into a head chamber of the hydraulic cylinder is controlled by a control valve. The operating pressure of the control valve is controlled by detecting the variations in predetermined factors of a body to be supported and supplying signals to the control valve in accordance with the variations.