Resources Contact Us Home
Safety hydraulic brake system for automotive vehicles

Image Number 10 for United States Patent #4159755.

A safety hydraulic brake system for automotive vehicles which includes a control cylinder having an inlet connected to a hydraulic pressure source, and first and second outlets connected to brake cylinders at front and rear wheels, respectively. A valve is located at each outlet and normally allows pressurization of the front and rear wheel cylinders upon actuation of the hydraulic pressure source. First and second pistons, each having a by-pass valve, are slidable in the control cylinder. The pistons and by-pass valves are operable, when there is a loss of brake pressure in the lines to one set of brake cylinders, to effect closing of the control cylinder valve to that brake cylinder set. This allows brake pressure to be maintained at the other set of wheel cylinders and the vehicle to be safely braked. In addition, for heavy vehicles such as buses and trucks, an additional control cylinder device can be incorporated providing separate braking systems for each of the rear wheels so that loss of brake pressure to one rear wheel does not affect brake pressure at the other. Further, the system is designed to accomodate ready air bleeding from the brake lines.

  Recently Added Patents
State detection device, electronic apparatus, measurement system and program
Atmospheric treater with roller confined discharge chamber
Preparation process of transition metal boride and uses thereof
Power consumption management in a MIMO transceiver and method for use therewith
Liquid crystal display and manufacturing method thereof
Apparatus and method for image encoding/decoding using predictability of intra-prediction mode
Replacing memory pointers with implicit pointers to be used in compiler-generated debug output
  Randomly Featured Patents
Semiconductor laser driving device, optical head device, optical information processing device, and optical recording medium
Emission driver and electroluminescent display including such an emission driver
Liquid crystal display device
Coaxial type engine starter with hollow armature shaft
Adjustable stop for variable displacement pumps
Ignition control device and method
Query optimization with awareness of limited resource usage
Pixel density converter
Information processing apparatus, printing apparatus, control method therefor, information processing system, and program
Axle jack