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:
May. 20, 2014
Filed:
May. 27, 2011
Marcella Gai, Casella, IT;
Enrico Pagani, Casella, IT;
Marcella Gai, Casella, IT;
Enrico Pagani, Casella, IT;
Ultraflex S.p.A., Casella (GE), IT;
Abstract
A servo-assisted steering device for vehicles includes a manual control member that is connected to a pump or the like manually driving it when the control member is rotated. The pump is connected at its delivery and suction side to one of the two chambers of one or more steering actuators through hydraulic pipes, feeding a pressurized fluid alternately to one or the other of the two chambers depending on moving direction, in particular the rotation of the control member. Assist control means for the steering actuators include a hydraulic fluid tank and automatic pumping means, which are driven and connected to the hydraulic pipes when the steering wheel is operated and which, by increasing the amount of pumped fluid, increase the pressure exerted by the pump to reduce resistance when steering the control member. The number of revolutions of the motor driving the automatic pumping means may be adjusted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile