Bizarre Patents
Nicotine Containing Dental Floss
Keep away cavities and cancer at the same time.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7244002 | Vehicle brake system A brake-by-wire type vehicle brake system is arranged to return a piston of a master cylinder to a normal position by opening a shutoff valve so as to supply a hydraulic pressure of a pump to the master cylinder when the shutoff valve is closed and a stroke simulato... | 07/17/2007 |
| 7146812 | Hydraulic brake apparatus A hydraulic brake apparatus includes a tandem brake master cylinder having a rod piston moving in response to a brake pedal, and a floating piston moving in response to the rod piston; a separation valve provided in a hydraulic brake circuit connecting the brake mas... | 12/12/2006 |
| 7131520 | Actuator unit for an electro-hydraulic brake system An actuator unit for an electro-hydraulic brake system of the ‘brake-by-wire’ type, the first and second pistons thereof being preloaded by a resetting spring each in opposition to the actuating direction. The first pressure chamber of the tandem master cylinder... | 11/07/2006 |
| 7069725 | Electro-hydraulic brake circuit for a vehicle When an element of the electro-hydraulic brake circuit (1) is malfunctioning, a master cylinder (2) can brake the vehicle. A brake actuation simulator (8) is then disconnected from the master cylinder (2) by means of an O-ring gasket (... | 07/04/2006 |
| 7032982 | Master cylinder apparatus A master cylinder apparatus for a BBW system is provided, which enables accurate detection of a piston stroke without substantial increase in the size of a master cylinder. A master cylinder apparatus includes a master cylinder adapted to be connected to wheel cylin... | 04/25/2006 |
| 7003954 | Master cylinder apparatus A master cylinder apparatus for a BBW system is provided, which eliminates a risk of brake delay, even with the use of a plunger-type master cylinder, and which therefore is able to achieve a reduction in size of a master cylinder. The master cylinder apparatus comp... | 02/28/2006 |
| 6959547 | Tandem master cylinder for electrohydraulic braking systems This master cylinder comprises a body (12) defining a primary pressure chamber (14) and a secondary pressure chamber (16), separated by an axially movable piston (22), the so-called secondary piston; means (28) for the hydraulic co... | 11/01/2005 |
| 6662561 | Means to dampen the effect of pressure oscillations on a control valve A control valve (10) having a plunger (64) with a stem having a flange defined by a first diameter (66) loosely located in a first diameter (58) of a bearing (50) and a second diameter (68) sealingly located in a second diameter (56) of the bearing (50). ... | 12/16/2003 |
| 6216457 | Electronically controlled hydraulic brake boost pressure control system A vehicle hydraulic system is disclosed comprising a hydraulic fluid reservoir; a pressure force supplying pressurized hydraulic fluid to a discharge header; a fluid conduit between the discharge header and the reservoir; a back pressure valve operative i... | 04/17/2001 |
| 6192685 | Master cylinder for motor vehicle electro-hydraulic braking installation A master cylinder (32) in a vehicle hydraulic braking installation uhydraulic-fluid supply device for actuating wheel brake cylinders (20). The master cylinder (32) being isolated from the wheel brake cylinders (20) by at least one shut-off valve (30). Th... | 02/27/2001 |
| 6161903 | Brake-pressure-transmitter arrangement for a hydraulic motor-vehicle brake system, and brake system equipped therewith A brake-pressure-transmitter arrangement (1) for a hydraulic motor-vehicle brake system, after an actuating force (F) has been introduced via an input member (brake pedal 2), by reduction in the volume of a hydraulic chamber (4) to be filled with brake fl... | 12/19/2000 |
| 5951116 | Brake control system for a motor vehicle A plurality of electrical fluid pressure control valves or a plurality of groups each comprised of a plurality of electrical fluid pressure control valves are operatively associated with respective power supply replays. The electrical fluid pressure contr... | 09/14/1999 |
| 5937649 | Brake master cylinder with return connection A brake master cylinder (10) for a hydraulic vehicle brake system has a master cylinder housing (32) and at least one pressure chamber (40) designed therein. Connected to the pressure chamber (40) is a hydraulic fluid reservoir which, furthermore, is prov... | 08/17/1999 |
| 5544948 | Service and emergency brake system having a master cylinder with a travel simulator gas-filled spring A travel simulator having a progressive pedal characteristic to be in operation in a power-actuated service brake. The hydraulic brake system has a valve assembly for the switching of the brake system into operation as either a service brake or as an emer... | 08/13/1996 |
| 5221126 | Brake control system for automotive vehicle A brake control system for an automotive vehicle has an improved hydraulic circuit network which is capable of performing pressure boosting operation for a pressure supplied from a master cylinder, as well as anti-skid brake control operation and traction... | 06/22/1993 |
| 5038565 | Pressure generator for a hydraulic vehicle brake system The brake system has an apparatus for traction control having a pressure generator. The pressure generator has a longitudinally displaceable cylinder for receiving brake fluid. The cylinder is connected by means of a valve to a pressure course between a m... | 08/13/1991 |
| 4989925 | Brake pressure control device for vehicles A brake pressure control device introduces pump pressure which is produced by a pump (16) into piping which connects a master cylinder (4) and wheel brakes (11, 11', 12, 12'). The increase, decrease and retention of the wheel brake pressure are effected b... | 02/05/1991 |
| 4858438 | Hydraulic booster device for braking circuit The hydraulic booster device controls a ball valve (25) to establish a communication between a source of fluid at high pressure (35) and a braking circuit (29) during a normal braking. In the event of failure of the high pressure source (35), the braking ... | 08/22/1989 |
| 4809508 | Clutch-disengaging hydraulic actuators preventing wheel slip Hydraulic booster device intended to be arranged in parallel with a primary actuation circuit between an actuator mechanism and a receiver, the device comprising an electromagnetic valve mechanism (10) arranged between an actuator (12) and a pressure-flui... | 03/07/1989 |
| 4783965 | Hydraulic booster Hydraulic booster comprising a housing provided with a bore inside which there is slidably mounted two pistons each associated with a respective pressure chamber intended to be connected to a respective brake circuit; an actuating piston slidably mounted ... | 11/15/1988 |
| 4762300 | Control valve for controlling fluid passage A piston in a first cylinder is driven as a piezoelectric element group, which includes a plurality of laminar piezoelectric elements stacked in layers, extends or contracts. A second cylinder is formed so as to connect with a first fluid pressure chamber... | 08/09/1988 |
| 4729223 | Full power hydraulic assistance device Hydraulic assistance device comprising a housing (10) provided with a bore (12) in which a piston mechanism (30, 42) is slidably mounted, which mechanism is displaceable by a brake pedal between a first position linking a first chamber (38, 56), connected... | 03/08/1988 |
| 4709550 | Hydraulic assistance device The hydraulic assistance device incorporates a casing (10) enclosing first and second sliding components (18, 20) arranged in line, the first component (18) being capable of being displaced under the effect of the displacement of a pushrod (34) and the se... | 12/01/1987 |
| 4693521 | Automobile braking force control apparatus An automobile braking force control apparatus controls braking forces on some or all of the wheels individually or in groups. The operating force from a brake pedal (2) is converted into a hydraulic pressure by a master cylinder (3). This converted hydrau... | 09/15/1987 |
| 4637208 | Hydraulic assistance device for braking Hydraulic assistance device incorporating a casing provided with a bore in which a first piston is mounted so as to slide, the piston being able to move under the effect of a brake pedal between a first position, isolating a first chamber which is joined ... | 01/20/1987 |
| 4622814 | Hydraulic assistance device Hydraulic assistance device of the mixed hydrodynamic/hydrostatic type incorporating a body (10) in which a first piston (18) is slideably mounted and moveable between a first position allowing the communication of a first chamber (53), joined to a brakin... | 11/18/1986 |
| 4483144 | Control arrangement for a hydraulic brake system with an antiskid control device An arrangement for controlling the supply of pressurized hydraulic fluid from a master cylinder and from a pressure source into hydraulic circuits leading to wheel brake actuating cylinders includes a valve device including a control piston acted upon by ... | 11/20/1984 |
| 4422293 | Closed-center hydraulic servo apparatus A closed-center hydraulic servo apparatus (10) includes a closed-center valve device (112) which is coupled to an input member (60) to control the communication of fluid among a fluid pressure source (12,14), a fluid reservoir (36), and a fluid pressure r... | 12/27/1983 |
| 4178757 | Flow control means For the hydraulic brake system of a vehicle such as a farm or industrial tractor having brakes on the right and left rear wheels for both braking and steering, flow control means operatively interconnecting a source of hydraulic pressure available when th... | 12/18/1979 |
| 3942326 | Hydraulic brake force-multiplying device A hydraulic brake force-multiplying device includes a body, an output member fitted slidably in the body, a working chamber defined between the output member and the body, a pressure chamber defined in the body and receiving pressure fluid introduced from... | 03/09/1976 |
