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:
Feb. 22, 1977
Filed:
Mar. 27, 1975
Roger Chanal, Saint-Etienne, FR;
Abstract
A return device for a hydraulic steering mechanism of a vehicle includes an pparatus for automatically returning the wheels of the vehicle to a straight-ahead position after they are laterally pivoted by a steering wheel acting through a line of shafts. A hairpin spring is stressed by the rotation of a drum mounted on one of the shafts to create a resistance to further lateral pivoting of the vehicle wheels away from a straight-ahead position and a return force to return the vehicle wheels to a straight-ahead position. After the hairpin spring is stressed, a coil spring is tensioned by the rotation of the drum to create an additional resistance to further lateral pivoting of the vehicle wheels away from a straight-ahead position and an additional return force to return the vehicle wheels to a straight-ahead position.