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 |
| 6990812 | Control valve for a hydraulic brake booster A control valve of a hydraulic brake booster for use in a brake system. The control valve is characterized by a shuttle member having a stem on a first end and an annular projection on a second end. The stem has an annular surface thereon that is matched with an ori... | 01/31/2006 |
| 5065573 | Hydraulic power booster including backup actuator in addition to lever device, for booster control valve A hydraulic power booster having a lever device disposed in operative association with a reaction piston, a power piston and a valve spool, for moving the valve spool in one of opposite axial directions thereof for applying a pressure of a pressure source... | 11/19/1991 |
| 5011363 | Extend and retract control for fork lifts A fork extension and retraction system for use with stockpickers automatically extends and retracts hydraulically extendable forks of a stockpicker when the load handler carrying the forks has moved to its extended position on the load side of the vehicle... | 04/30/1991 |
| 4955198 | Clutch booster The present invention relates to an improved clutch booster equipped with a power piston and a control valve unit, and more particularly to a clutch booster wherein the control valve is operatively connected to a clutch pedal by mechanical link means and ... | 09/11/1990 |
| 4776256 | Hydraulic force booster A hydraulic force booster for actuating master cylinder pistons in brake systems of automotive vehicles, comprises a lever system including two levers (33,34) pivotably interconnected by way of a journal (35). The second lever, by way of a coupling (45) i... | 10/11/1988 |
| 4755100 | Operator control system An operating control system for a lift truck controlled from a single multi-function operator hand control which is located and designed for improved operator comfort, convenience, simplicity and to reduce operator fatigue. The sole hand control for direc... | 07/05/1988 |
| 4671066 | Hydraulic power booster A hydraulic power booster, for the actuation of a master cylinder in an automotive vehicle brake system, in which a booster piston and a brake valve are essentially arranged in parallel with the booster piston. In dependence on the actuation force applied... | 06/09/1987 |
| 4642989 | Hydraulic power booster The present invention relates to a hydraulic power booster, in particular for the actuation of a master cylinder in an automotive vehicle brake system, wherein there is a booster piston and a brake valve arranged essentially in parallel to the booster pis... | 02/17/1987 |
| 4625515 | Brake booster A brake booster includes a valve member which is operable to communicate fluid pressure to a pressure chamber for generating a power assist during braking. The brake booster provides an auxiliary chamber to trap fluid pressure leakage past the valve membe... | 12/02/1986 |
| 4624108 | Hydraulic brake booster A hydraulic brake booster including main cylinders operative relative to a pedal stroke by which a sufficient pedal stroke is still available in the event of a failure in the pressure supply so that the brakes can be actuated by the pedal stroke and furth... | 11/25/1986 |
| 4620750 | Main brake cylinder A main brake cylinder for vehicle brake systems, in which a control valve effects the application of an auxiliary force to at least one brake piston. Additionally engaging the control valve and supplementarily for possibly adjusting the brake pedal is an ... | 11/04/1986 |
| 4604870 | Brake booster A brake booster (16) includes a pair of pistons (50, 56) and a valve assembly (74) operable to communicate fluid pressure to the pair of pistons (50, 56). An input assembly (90) moves in response to an input force to control the operation of the valve ass... | 08/12/1986 |
| 4553470 | Assistor for reducing stepping force An assistor for reducing stepping force of a clutch pedal, in which a push rod is inserted into an assistor casing freely movably in the axial direction, a casing outside end of the rod is interconnected to a clutch pedal, a casing inside portion of the r... | 11/19/1985 |
| 4534171 | Hydraulic dual-circuit tandem main brake cylinder A hydraulic dual-circuit tandem main brake cylinder which includes at least one closed brake circuit (I) having a brake piston. This brake piston is actuated by means of the pressure fed into a pressure chamber by means of a brake control valve with a tra... | 08/13/1985 |
| 4490979 | Vehicle braking system In a vehicle braking system of the kind in which brakes mounted on opposite sides of the vehicle are associated with respective pedals (1) and can be operated together for normal vehicle retardation or independently to assist vehicle steering, the brakes ... | 01/01/1985 |
| 4489555 | Hydraulic dual-circuit brake booster A hydraulic dual-circuit brake booster in which two brake circuits are closed brake circuits. A dual-circuit tandem main cylinder is used in combination with a pedal push rod supported in a displaceable piston and exposed to the brake pressure directed in... | 12/25/1984 |
| 4468926 | Vehicle brake booster A vehicle brake booster comprises a brake master cylinder operable by a brake pedal, and a power valve including valve means operable by the brake pedal to admit fluid under pressure from a source to a boost piston for applying a boost force to the master... | 09/04/1984 |
| 4462300 | Hydraulic power booster with a mechanically operated separate brake control valve member A hydraulic power booster arrangement includes a brake valve which is arranged substantially in parallel to a booster piston and which is operative for controlling the connection from a pressure chamber to a auxiliary pressure source or to an unpressurize... | 07/31/1984 |
| 4405183 | Vehicle brake valve with an emergency piston A brake valve useable in conjunction with a vehicle braking system monitored by an anti-locking device and operable by a brake pedal through a trailing spring sometimes also called a simulating spring. The brake valve is provided with a control slide valv... | 09/20/1983 |
| 4326379 | Hydraulic control device for a motor vehicle braking circuit The invention relates to a master cylinder for an automobile braking circuit which is suitable for dual-circuit or single-circuit application. The master cylinder has at least one chamber connected to the braking circuit, the pressure in the chamber being cont... | 04/27/1982 |
| 4320623 | Fluid-pressure operated boosters for vehicle braking systems In a servo-motor assembly for a vehicle braking system a valve controlling the servo pressure is operated by an operating assembly comprising an angularly movable rotary operating member, an axially movable transmission member for applying an operating fo... | 03/23/1982 |
| 4305251 | Assisted braking device The invention relates to a power-assisted braking device of the kind having a master piston sliding in a master cylinder, a jack having a piston linked to the master piston by an interconnection such as a rod, a source of auxiliary hydraulic pressure, and... | 12/15/1981 |
| 4253305 | Assisted braking device The invention provides an assisted braking device which operates in conjunction with a brake pedal disposed at one end of a brake lever. The device comprises a master piston and cylinder assembly the piston of which is interconnected with the piston of an... | 03/03/1981 |
| 4232520 | Actuator assemblies for vehicle hydraulic braking systems A power operated actuator assembly incorporates a stop mechanism for opposing movement of an actuating member if a booster fluid supply is operative. The stop mechanism comprises a chamber which is supplied with a metered proportion of pressurized fluid w... | 11/11/1980 |
| 4232519 | Assisted braking device An assisted braking device comprises a master cylinder and piston for applying the brakes. Depression of a brake pedal is arranged to move the master piston and to control brake assisting means to assist in the movement of the master piston. The assisted ... | 11/11/1980 |
| 4218887 | Assisted braking device An assisted braking device comprises a master cylinder and piston assembly the piston of which is connected to the piston of an assisting jack by an axially aligned interconnecting element. A brake pedal is adapted to operate the interconnecting element b... | 08/26/1980 |
| 4206605 | Installation for the power assist of actuating devices in motor vehicles, especially in a hydraulic brake system An installation for the servo-assist of actuating devices in motor vehicles, especially of a hydraulic brake system, in which a control member, such as the brake pedal, acts on an actuating device, such as a master cylinder of a two-circuit brake system b... | 06/10/1980 |
| 4182220 | Push rod assembly A push rod assembly having a first section and a second section through which an input force is transmitted to an output member. The first section includes a cylindrical member with a bellows attached thereto. The cylindrical member has a bore therein. Th... | 01/08/1980 |
| 4137718 | Power brake unit A housing includes therein a servo pressure control valve disposed in parallel to a master-cylinder piston. The foot pedal operates an actuating member which operates directly on the master-cylinder piston and via a forked section of the actuating member ... | 02/06/1979 |
| 4078385 | Brake power boosting mechanism A brake force booster installation with a mechanical, pneumatic or hydraulic actuating mechanism acting on a servo- and adjusting-unit, which in turn acts on the master cylinder, with filling devices and with control- and shifting-devices; the filling dev... | 03/14/1978 |
| 4047765 | Hydraulic power transmission and braking system for vehicles A hydraulic braking system is provided for automatically apportioning braking of the wheels of a vehicle in accordance with the load on respective wheels. A plurality of brake control assemblies each dedicated to one of the wheels of the vehicle are coupl... | 09/13/1977 |
| 4015881 | Brake control device The invention relates to a brake control device including, a pump driven by an engine, a brake pedal actuated by a vehicle driver, wheel brake cylinders, manual operating means operatively connected with the brake pedal, pressure control valve means havin... | 04/05/1977 |
| 3972190 | Vehicle brake pedal arrangements A brake actuating assembly for actuating a master cylinder having a power assistor comprises a brake pedal pivotable about a pivot point at one end and connected at a point intermediate its ends to an actuating member of the master cylinder, movement of t... | 08/03/1976 |
