Bizarre Patents
A gun that fires a missile, powered by gas "discharged by the operator of the toy."
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 |
| 8091356 | Vehicular brake system In a vehicular brake system, an input piston and a pressure piston are coaxially and axially movably supported in a cylinder, and a brake pedal is coupled to the input piston. Pressure chambers formed on the axially opposite sides of the input piston communicate wit... | 01/10/2012 |
| 7861523 | Vehicular brake system In a vehicular brake system, an input piston and a pressure piston are coaxially and axially movably supported in a cylinder, and a brake pedal is coupled to the input piston. Pressure chambers formed on the axially opposite sides of the input piston communicate wit... | 01/04/2011 |
| 7591134 | Vacuum booster of brake device The present invention provides a vacuum booster, which is constructed such that an area with which a cylinder communicates with a port communicating with a reservoir and being open to the cylinder is reduced at high temperature, so that a sufficient reaction force c... | 09/22/2009 |
| 7360360 | Vehicle braking device A vehicle braking device includes a stroke simulator provided between a control piston of a fluid pressure booster and a brake operation member, wherein the control piston has an inner peripheral surface partially including a tapered surface with a decreasing diamet... | 04/22/2008 |
| 7357465 | Brake pedal feel simulator A brake pedal feel simulator is provided which reduces the simulation force provided to the brake pedal during emergency or failed conditions. The simulator generally comprises a first spring having a first spring rate and a second spring having a second spring rate... | 04/15/2008 |
| 7302882 | Jump force vacuum booster The invention provides a method and apparatus wherein the apparatus includes a housing having a first end and a second end. The housing also includes a first aperture and a second aperture. The first aperture is positioned to communicate with a first fluid source at... | 12/04/2007 |
| 7302796 | Hydraulic brake booster An hydraulic brake booster for an automobile hydraulic system comprising of a boost cylinder, a boost piston and a boost chamber defined by a boost piston working in a bore in a body and being adapted to apply an output force to an output rod in response to a pressu... | 12/04/2007 |
| 7293413 | Vehicle braking device There is provided a vehicle braking device in which a front outer periphery of a backup piston that can directly press a master piston from behind when output fluid pressure from a fluid pressure generation source is reduced is fluid-tightly and slidably fitted to a... | 11/13/2007 |
| 7252345 | Brake system for a motorcycle A combined braking system in which communicative connection a master cylinder and a brake caliper is cut off by an electromagnetic on-off valve, and hydraulic pressure, corresponding to driving conditions and a braking operation, is generated by an electrically-oper... | 08/07/2007 |
| 7152405 | Main cylinder with integrated transportation lock A master cylinder for a vehicle hydraulic brake system has a housing with a bore formed therein, which is open at one end and in which a first pressure piston and a second pressure piston are guided sealingly and displaceably along an axis. Acting counter to an actu... | 12/26/2006 |
| 7104058 | Vehicle braking system In a vehicle braking system, a backup piston pushes a master piston directly from behind when hydraulic pressure of a boosted hydraulic pressure chamber decreases. The backup piston has a piston body which is slidably fitted in a casing, and a pusher which is slidab... | 09/12/2006 |
| 7093435 | Hydraulic controller A hydraulic controller includes: a pair of liquid chambers; and an on-off valve capable of opening and closing a flow channel on the side of the liquid chamber with a higher hydraulic pressure out of the pair of liquid chambers. The flow channel can provide communic... | 08/22/2006 |
| 7083240 | Vehicle braking system A vehicle braking system includes: a hydraulic booster which applies output hydraulic pressure of a hydraulic power source to a boosted hydraulic pressure chamber after regulating the output hydraulic pressure as a control piston operates to balance reaction force g... | 08/01/2006 |
| 7040217 | Tie rod for a brake booster A first and second tie rods locating between a front shell and a rear shell of a brake booster through which a master cylinder is connected to a support member. Each of the first and second tie rods have a head that engages the rear shell and a first shaft that exte... | 05/09/2006 |
| 7040093 | Penetration master cylinder with reduced backlash and application thereof This invention relates to a master cylinder of the so-called “penetration” type, in which a cup (3), which is fitted inside a groove (11) of the master cylinder, bears on the wall (20) of a piston (2) in a sealing manner, and in which... | 05/09/2006 |
| 7004551 | Vehicular motor-driven brake device A vehicular motor-driven brake apparatus includes an open circuit in which reciprocation of a master cylinder generating a brake pressure is caused by an actuator that operates according to a pedal operation amount, and brake fluid discharged from a wheel cylinder d... | 02/28/2006 |
| 6988778 | Pneumatic brake booster, particularly for a motor vehicle A pneumatic brake booster for use in a motor vehicle having a feeler (42) mounted to slide on a plunger (32) located at the end of a control rod (22) and pivoting key (62) for axially blocking the movement of the feeler (42) with r... | 01/24/2006 |
| 6978869 | Master cylinder with a braking stroke simulator The present invention is directed to a master cylinder having a braking stroke simulator, wherein a master piston is slidably accommodated in a housing having an atmospheric pressure chamber and a master pressure chamber, and a simulator piston is slidably accommoda... | 12/27/2005 |
| 6955407 | Negative pressure type brake hydraulic pressure generating device A negative pressure type brake hydraulic pressure generating device is proposed in which the stroke on the operating side can be set independently of the stroke on the output side. A slide resistance imparting means is provided between the fixed shell and a piston h... | 10/18/2005 |
| 6948313 | Brake booster device for motor vehicle Braking device including a master cylinder (2), a primary piston (3), a control member (4), a booster (6) coupled to the control member (4), and an assist valve (VA) defined by a reaction piston (17) with a bore (18) ... | 09/27/2005 |
| 6705682 | Hydraulic brake apparatus for a vehicle A vehicle hydraulic brake apparatus includes a hydraulic pressure generator which generates a power pressure irrespective of operation of a brake pedal and a regulation valve which regulates the power pressure to a predetermined pressure corresponding to an operatio... | 03/16/2004 |
| 6591611 | Hydraulic brake booster A hydraulic brake booster (12) having a housing (100,200) with a first bore (102) separated from a second bore (104). The first bore (102) retains a power piston (50) and the second bore (104) retains a control valve (60). The first bore (102) is connecte... | 07/15/2003 |
| 6564553 | Braking pressure intensifying master cylinder In a braking pressure intensifying master cylinder, as an input shaft (53) travels forwards in a braking maneuver, a control valve (54) is actuated to develop fluid pressure according to the input in a reaction chamber (38) and a pressurized chamber (35).... | 05/20/2003 |
| 6467266 | Brake booster In a brake booster of the present invention, by depression of a brake pedal 3, an input shaft 4 travels to the left, a pedal input converter generates thrust, and a valve element 5a moves to the left. A valve passage 5a1 is shut off from a valv... | 10/22/2002 |
| 6467267 | Fluid pressure boosting device and brake system employing the same In a brake fluid pressure boosting device 1 of the present invention, by operation, an input shaft 4 is moves forward to rotate a lever 27 to actuate a control valve 8 so that the control valve 8 produce working fluid pressure corresponding to the input. ... | 10/22/2002 |
| 6453670 | Two-piece stationary seal master cylinder A master cylinder for vehicle braking systems includes a housing having a central cavity, at least one fluid supply inlet port, at least one pressure outlet port, and a flange at one end thereof. A piston actuation mechanism within the central cavity is m... | 09/24/2002 |
| 6352316 | Brake system A brake system including a negative pressure booster, a master cylinder of tandem type and an intensifying arrangement. The intensifying arrangement defines an intensifying chamber disposed rearward of a primary piston, a pump for supplying a braking liqu... | 03/05/2002 |
| 6347518 | Pedal simulator using spring with non-linear response A pedal simulator utilizing springs to provide a brake pedal with a non-linear, progressively increasing response characteristic for pedal travel versus force exerted on the brake pedal similar to a conventional hydraulic braking system. In a preferred em... | 02/19/2002 |
| 6244049 | Brake system A counter-force mechanism (37), which produces a counter force when a brake booster is operated, is made up of an input-side member (38) slidably disposed within a valve body (3), a second constant-pressure chamber (39) formed on the rear side of the inpu... | 06/12/2001 |
| 6161464 | Brake booster A brake reaction which occurs as a brake booster is actuated is prevented from being transmitted to a brake pedal, and instead pseudoction reaction imparting means 41 is provided to transmit a pseudo-reaction to the brake pedal. A valve body 5 and a power... | 12/19/2000 |
| 6109164 | Brake device for automobile A push rod of a vacuum booster includes an inner rod section, a pipe-shaped outer rod section which is slidably fitted over an outer periphery of a rear portion of the inner rod section and connected to a brake pedal, and a buffer member made of a synthet... | 08/29/2000 |
| 6089140 | Brake booster A brake booster which permits an axial relative movement between a power piston and a valve body is disclosed. An arrangement is made which prevents a brake reaction from being transmitted to a brake pedal. As an alternative therefor, pseudo-reaction impa... | 07/18/2000 |
| 6062655 | Hydraulic brake apparatus for a vehicle The present invention is directed to a hydraulic brake apparatus for applying braking force to each wheel of a vehicle in response to depression of a brake pedal. A master piston is received in a cylinder body to define a pressure chamber ahead of the mas... | 05/16/2000 |
| 6023931 | Master cylinder with dynamic reaction regulated by a difference in cross section A master cylinder and pneumatic brake booster having hydraulic reaction means. The hydraulic reaction means which is mounted to slide within a main piston (12) in the master cylinder includes a central shut-off piston (4), a stepped and hollow reaction pi... | 02/15/2000 |
| 5979162 | Vehicle brake booster apparatus A vehicle brake booster apparatus includes a housing and a power piston positioned within the interior of the housing to divide the interior into a first pressure chamber and a second pressure chamber, with the power piston being movable in response to a ... | 11/09/1999 |
| 5934075 | Booster with prefilling without limitation in flowrate A boosted braking device having a master cylinder and a pneumatic booster wherein the force for actuating the master cylinder is derived from a combination of an input force and a boost force of the booster. A main hydraulic piston of the master cylinder ... | 08/10/1999 |
| 5890363 | Brake-pressure producing device In a brake-pressure producing device of the present invention, a power piston 10 of a hydraulic booster 2 comprises a stepped piston including a large-diameter portion 10a on which fluid pressure of a power chamber 30 is exerted and a small-diameter porti... | 04/06/1999 |
| 5802952 | Reaction mechanism for booster According to the invention, the booster is not provided with a brake reaction transmission mechanism, and hence a reaction cannot be transmitted to a brake pedal. On the other hand, a pseudo-reaction imparting means is provided to impart a pseudo-reaction... | 09/08/1998 |
| 5715680 | Hydraulic power booster for a brake apply system A hydraulic power booster for a brake apply system includes a mechanically actuated hydraulic booster of compact design that can be integrated in line with a conventional type master cylinder. Additionally, a combination of twin mechanically actuated chec... | 02/10/1998 |
| 5540053 | Actuating unit for a hydraulic brake system for automotive vehicles An actuating unit for a hydraulic brake system for automotive vehicles includes a vacuum brake power booster and a master brake cylinder. To transmit the reaction forces, developing during actuation in the master brake cylinder, to a vehicle body wall whi... | 07/30/1996 |
