Location History:
- Survilliers, FR (1980 - 1981)
- Fosses, FR (1980 - 1984)
Company Filing History:
12 out of 120 
1 out of 7 
1 out of 633 
Years Active: 1980-1984
Title: Innovations and Contributions of Jean L Dauvergne
Introduction
Jean L Dauvergne is a notable inventor based in Fosses, France. He has made significant contributions to the field of hydraulic systems, holding a total of 14 patents. His work has been instrumental in advancing technologies related to power-assisted steering and hydraulic control systems.
Latest Patents
Among his latest innovations are the hydraulic distributor devices and the power-assisted hydraulic control system. The hydraulic distributor device features two members that move relative to one another, either in rotary or translational movement, along a planar sliding interface. This design includes at least one narrow groove superficially provided in one of the members along the interface, which minimizes or eliminates the axial thrust generated by fluid pressure. This distributor device is particularly useful in power-assisted steering apparatus for vehicles.
The power-assisted hydraulic control system is designed for actuating clutches and brakes. It incorporates a master cylinder with a master piston that defines a control chamber, along with a hydraulic power assistance unit. The system includes a distributor that connects the power assistance unit with the hydraulic receiver controlling the brake or clutch unit. A slide valve within the distributor has a plunger that responds to pressures in both the control chamber and the receiver. Additionally, a bypass channel links the control chamber of the master cylinder to the pipeline connecting the operating port of the distributor to the receiver, featuring a bypass valve controlled by a spring to allow manual operation in case of