Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7341318 | Circulating fluid regulated braking device for air and land vehicles A circulating fluid regulated braking device for a vehicle includes a piston pump mounted directly on the hub of each vehicle wheel. The pumps mounted on front wheels are connected by pipes to a primary two-way valve, which, in turn, is connected by pipes to a prima... | 03/11/2008 |
| 7331641 | Braking stroke simulator The present invention is directed to a braking stroke simulator for use in a brake system, which comprises a simulator piston moved in response to operation of a manually operated braking member, and an elastic element for providing a stroke to the simulator piston ... | 02/19/2008 |
| 7194990 | Electro-hydraulic engine valve actuation Hydraulic actuator as an element of a system for controlling an engine valve is presented. The actuator includes a fluidic actuation chamber, defined by an actuation piston that increases chamber volume as the actuation piston is urged away from a neutral. Chamber i... | 03/27/2007 |
| 7188912 | Braking systems A braking system includes a brake actuator which is moveable in a first direction to cause a brake applying member to apply a braking force to a member to be braked. A master valve includes a piston assembly which upon operation of a brake operating member, directs ... | 03/13/2007 |
| 7077482 | Vehicle braking system A simulator piston is slidably fitted in a control piston to form a stroke liquid chamber between itself and an end wall of a control piston. A port which is closed at a forward limit of the control piston with respect to a backup piston is provided in the end wall ... | 07/18/2006 |
| 6942075 | Brake system having boosted hydraulic accumulator A hydraulic brake system includes a hydraulic accumulator that stores much of the energy generated upon brake pedal depression. The stored energy can be used to maintain the brakes in their fully engaged state and to help return an applied brake pedal to its release... | 09/13/2005 |
| 6907963 | Brake system having hydraulic accumulator and/or combined service brake and park and hold brake A hydraulic brake system (50) for a vehicle such as a golf car or the like uses the same brakes (52) and same brake pedal (80) for both service braking and park and hold braking. The brakes (52) are selectively engaged, locked in their en... | 06/21/2005 |
| 6796407 | Brake system having boosted hydraulic accumulator A hydraulic brake system includes a hydraulic accumulator that stores much of the energy generated upon brake pedal depression. The stored energy can be used to maintain the brakes in their fully engaged state and to help return an applied brake pedal to its release... | 09/28/2004 |
| 6729450 | Electro-hydraulic brake booster A brake booster amplifies driver brake pedal input into an output force and travel for operating a master cylinder. A power unit builds and stores high pressure fluid to provide boost. Inlet and outlet solenoid valves regulate pressurized fluid to the amplifying mec... | 05/04/2004 |
| 6662915 | Hydraulic park brake booster mechanism A brake assembly is provided for implementation with a brake system and includes a support bracket, a master cylinder supported by the support bracket and operable to provide hydraulic pressure to the brake system, an accumulator piston extending from the... | 12/16/2003 |
| 6644760 | Hydraulic pressure control device and vehicle brake device using the same A hydraulic pressure control device is provided in which a proportional pressure control valve is actuated by operating the brake pedal to adjust the hydraulic pressure supplied from a pressure source to the wheel brakes to a value corresponding to the pe... | 11/11/2003 |
| 6561596 | Brake booster A hydraulic brake booster (12) for use in a brake system (10) having a first housing (100) with a first bore (102) separated from a second bore (104). The first bore (102) retains a power piston (118) and the second bore (104) retains a control valve arra... | 05/13/2003 |
| 6547048 | Manual braking system with hydraulic brake booster A hydraulic pressure intensifier for operating a vehicle braking system under conditions that are not conducive to the proper operation of a power assist for the braking system. The hydraulic pressure intensifier has an intensifier inlet fluidly connected... | 04/15/2003 |
| 6386346 | Brake valve device for industrial vehicles A spool-out type booster brake valve device for industrial vehicles is configured to allow hydraulic working fluid to be supplied not only to a booster chamber but also to a master chamber thereby eliminating the need to use a separate brake fluid reservo... | 05/14/2002 |
| 6361125 | Hydraulic brake booster A hydraulic brake booster includes a primary master cylinder M1, a hydraulic power source 5, a fluid tank 11 and proportional booster valves Vf, Vr for boosting an output hydraulic pressure from the primary master cylinder M1 proport... | 03/26/2002 |
| 6082509 | Fluid pressurization system Disclosed herein is an improved braking system. The braking system includes a valving arrangement which reduces the dead band of the system and the freedom to randomly select the pistons return position. In particular, the system includes a fluid reservoi... | 07/04/2000 |
| 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 |
| 5442916 | Control valve assembly for total pressure hydraulic brake A control valve assembly for a total pressure hydraulic brake is provided with an input port, and output port, a remote control input port connected to a hydraulic fluid supply, a first response which is moved together with depression of a brake pedal, a ... | 08/22/1995 |
| 5040852 | Brake device A brake device has a static pressure line for generating brake fluid pressure in at least one line by manual operation, a dynamic pressure source such as a power pump, an electronic control unit, a stroke sensor for detecting the control input of the manu... | 08/20/1991 |
| 5031968 | Electronically controlled brake device An electronically controlled brake device for controlling a brake pressure according to a manual input. While the dynamic pressure line is functioning normally, the dynamic pressure acts on one end of a push rod associated with a brake pedal to give such ... | 07/16/1991 |
| 4922120 | Brake system with slip control A slip-controlled hydraulic brake system with improved operational reliability during the slip control phase of operation has a master cylinder having shortened overall axial length. The master cylinder includes a valve-opening mechanism of one central co... | 05/01/1990 |
| 4904026 | Brake system A brake system having a master brake cylinder with at least one piston in a stepped bore in which the piston is acted upon at one end by a piston rod and on the other end defines a pressure chamber, from which an outlet or a brake line leads to wheel brak... | 02/27/1990 |
| 4871051 | Clutch booster control valve system A clutch booster control system having parallel booster cylinder and a control valve, the booster cylinder having an extendible rod and being operatively connected between the vehicle frame and the clutch operating lever, the control valve having a slidab... | 10/03/1989 |
| 4823677 | Brake power assist servomotor A cylindrical casing accommodates an operator pistion and a power piston separated by a fixed barrier which serves to define with the former a reservoir and with the latter a power chamber. A piston rod affixed to the operator piston extends through the b... | 04/25/1989 |
| 4778224 | Brake unit with brake booster, two master cylinders for antilock and/or propulsion or slip control situated in common housing including pivotable rocker A brake unit for a road vehicle with a hydraulic dual-circuit brake system having two master cylinders, the brake booster and elements for antilock and/or propulsion or slip control in a common housing. A brake booster drive cylinder which can be subjecte... | 10/18/1988 |
| 4702530 | Hydraulic brake system with fast-fill cylinder A hydraulic brake system (FIG. 2) composed of a master cylinder (30) coupled to the brake pedal (46), wherein there is provided a hydraulic booster (31) with a booster piston (91) and a booster chamber (35), and an auxiliary pressure proportional to the p... | 10/27/1987 |
| 4603918 | Hydraulic dual-circuit tandem master brake cylinder A hydraulic dual-circuit tandem master brake cylinder intended for use in brake systems of motor vehicles is proposed, to which a closed brake circuit (I) and an open brake circuit (II), the latter reinforced by auxiliary pressure, are connected. In order... | 08/05/1986 |
| 4006939 | Air pressure modulated brake valve system A brake pressure modulating control valve for a hydraulically operated brake system. The control valve includes a spool associated with an air spring chamber. The system includes equipment for modulating the air pressure in the air chamber for constantly ... | 02/08/1977 |
