Class / Patent application number | Description | Number of patent applications / Date published |
060562000 | Master piston of one pulsator circuit drives master piston of a parallel circuit through a resilient, fluid or lost motion connection | 13 |
20080196402 | Hydraulic Master Cylinder And Vehicle Provided With The Same - A rear brake control hydraulic master cylinder that dispenses with adjustment work to decrease a clearance between a piston and a push member. A master cylinder | 08-21-2008 |
20080276612 | Master cylinder - A master cylinder includes a cylinder body, a reservoir connection port formed at a surface of the cylinder body and being in communication with a reservoir, a pressure chamber formed inside of the cylinder body, a reservoir fluid passage connecting the reservoir connection port and the pressure chamber, a valve mechanism accommodated within the reservoir connection port and reducing an amount of fluid flowing in the reservoir fluid passage in a case where the reservoir fluid passage is at a high pressure, and a valve body including a small diameter cylindrical portion and a large diameter cylindrical portion, the small diameter cylindrical portion forming a passage by means of which the reservoir and the reservoir fluid passage communicate, the large diameter cylindrical portion having one end connected to the small diameter cylindrical portion and the other end fixed to the reservoir connection port, the valve body accommodating the valve mechanism. | 11-13-2008 |
20080282697 | Tandem master cylinder with central valves - A tandem master cylinder ( | 11-20-2008 |
20090077963 | Slip Control Boost Braking System - A master cylinder includes a housing and a first secondary piston disposed in the housing. The first secondary piston cooperates with the housing to define a first secondary chamber which changes volume as the first secondary piston moves in the housing. A second secondary piston is disposed in the housing and cooperates with the housing to define a second secondary chamber which changes volume as the second secondary piston moves in the housing. A stepped primary piston is disposed in the housing. The primary piston cooperates with the housing to define a primary chamber which changes volume as the primary piston moves in the housing. The primary piston defines an abutment surface which can be driven into abutment with the first secondary piston and the second secondary piston to move the first secondary piston and the second secondary piston. A primary piston spring maintains a restorative force on the primary piston when actuated. | 03-26-2009 |
20090113890 | Motor Vehicle Braking System with Spring Adjusted Brake Pedal Feel - A compliance spring is disposed between the brake pedal and the primary piston of a master cylinder, preferably between the push rod and the primary piston of the master cylinder. Selection of the initial spring compression load of the compliance spring, its permitted spring compression travel and its spring constant, allow for both a simplified and fine adjustment of the brake pedal feel per a brake feel index. | 05-07-2009 |
20110126535 | HYDRAULIC BRAKE BOOSTER DEVICE - In order to address a problem with the effectiveness of a brake booster device, provision is made for the latter to be produced in the form of hydraulic servo control. In such an instance, a master cylinder ( | 06-02-2011 |
20130139501 | MASTER CYLINDER APPARATUS - A master cylinder apparatus A | 06-06-2013 |
20130174543 | DUAL HYDRAULIC CONTROLLER FOR BICYCLE COMPONENTS - A dual hydraulic controller apparatus comprises a housing, a first master cylinder disposed at the housing, and a second master cylinder disposed at the housing and coupled to the first master cylinder. The first master cylinder includes a first hydraulic chamber and a first piston disposed in the first hydraulic chamber for reciprocal movement therein. The second master cylinder includes a second hydraulic chamber and a second piston disposed in the second hydraulic chamber for reciprocal movement therein. A first operating member is coupled to the first piston for reciprocating the first piston, and a second operating member is coupled to the second piston for reciprocating the second piston. | 07-11-2013 |
20130255249 | VEHICLE BRAKE DEVICE - A vehicle brake device is provided with a master cylinder, a master piston slidably arranged in the master cylinder, an input piston slidably arranged in the master cylinder to be separated from the master piston and defining a separation chamber, an input piston moving amount detecting section for detecting the moving amount of the input piston, a master piston moving amount calculating section for calculating the moving amount of the master piston based on the moving amount of the input piston, and a contact inferring section for inferring the contact of the input piston with the master piston based on the moving amount of the input piston and the moving amount of the master piston. | 10-03-2013 |
20140053546 | TANDEM MASTER CYLINDER SECONDARY PISTON AND MASTER CYLINDER EQUIPPED WITH SUCH A SECONDARY PISTON - A master cylinder having a primary piston and a secondary piston is described. The secondary piston is realized of plastic material; it is composed of a skirt and an end wall. The forward edge of the skirt is equipped with longitudinal slots intended to cooperate with the resupply seal to resupply the secondary pressure chamber and ensure operation in rest position whenever the brake circuit is in ESP mode. Supply occurs from the supply chamber, which is connected to the brake fluid reservoir. | 02-27-2014 |
20140305120 | MASTER CYLINDER ASSEMBLY IN BRAKE SYSTEM AND PISTON STOP - The present invention relates to a master cylinder assembly in a brake system and a piston stop. The master cylinder assembly comprises one or more piston assemblies. At least one of the piston assemblies comprises a piston ( | 10-16-2014 |
20150068201 | BODY RESERVOIR ASSEMBLY - Provided is a body reservoir assembly whose height can be reduced. In the body reservoir assembly, the reservoir comprises: a recessed portion formed on a bottom surface of the reservoir; and a reservoir side connecting portion formed in the recessed portion and connected to a cylinder portion. | 03-12-2015 |
20150336629 | Master Cylinder Device for a Hydraulic Disk Brake - A master cylinder for a hydraulic brake comprises a compensating chamber, a cylinder in which a piston is movably disposed, a pressure chamber disposed in the cylinder and connected to the compensating chamber through at least one connecting opening, and a gasket for interrupting the connection between the pressure chamber and the compensating chamber. The gasket seals the compensating chamber and the pressure chamber against the environment. | 11-26-2015 |