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Match Document Document Title
8550573 Method of eliminating seizure of slave cylinder of brake device  
In a brake device, when a piston (38A, 38B) of a slave cylinder (23) seizes at an advanced position, an out-valve (60, 61) is opened to discharge brake fluid in a wheel cylinder (16, 17; 20, 21)...
8261547 Pneumatic actuator  
A pneumatic actuator (100) is provided according to the invention. The actuator (100) comprises an actuator body (102) and a piston rod (108) extending from the actuator body (102). The piston rod...
7789345 Actuator control apparatus  
Herein disclosed is an actuator control apparatus, comprising primary control means for producing a control signal used to control an operation of an actuator in accordance with an instruction...
7475538 Digital Hydraulic system  
A digital hydraulic system including a hydraulic source, a housing and a transtatic bridge. The transtatic bridge being substantially contained within the housing. The transtatic bridge being in...
6955048 Device for telecontrolling a function of drives  
The invention relates to a device for telecontrolling a function of drives for vehicles or machines. The device consists of at least two manual gearboxes which are arranged at a distance from the...
6729132 Remotely and directly pedal operated hydraulic compact booster for bi-directional braking  
A bi-directional braking assembly for a vehicle includes a hydraulic booster assembly for applying proportional fluid pressure to a brake assembly and is actuated by a forward pedal. A master...
6269641 Stroke control tool for subterranean well hydraulic actuator assembly  
A stroke control tool for controlling the position of a subterranean well hydraulically actuated double acting piston and cylinder actuator assembly. The tool includes hydraulic fluid measuring...
5918464 Pressurized in-line master cylinder  
A manually operated in-line secondary master cylinder can be configured for use with any hydraulic system which accommodates multiple manual input forces, and which requires the secondary input...
5836161 Hydraulic pressure booster  
A hydro-pneumatic pressure booster is proposed in which the reservoir chamber is limited by an elastic partition wall instead of a sliding piston.
5649424 Two-stage pressure cylinder  
A two-stage pressure cylinder having a work cylinder (17,100) with a work piston (18,108), and piston rod (20,110) for contact with a work piece, in which the work piston is movable, an oil...
5637803 Device for monitoring the pressure in several analysis vessels  
The present invention concerns a device for monitoring the pressure in at least two pressure-tight analysis vessels, that have been sealed by means of lids, whereby heat is supplied to the...
5582009 Air-oil intensifier  
An intensifier type of fluid actuator includes a body including a first manifold connected by a first tube to a second manifold to define an intensifier chamber, a third manifold connected by a...
5526644 Oil intensifier cylinder  
An oil intensifier cylinder having a hollow cylindrical body. An intensifier piston is slideably positioned in the body. An intensifier rod is connected to and extends from the intensifier piston....
5412512 Remotely controlled mirror assembly and control system therefor  
A mirror assembly for external use on large trucks, tractors, buses, etc. A first reflective surface is pivotably supported with respect to a large, shell-like housing in such a way that the...
5259195 Fluid pressure intensifier  
The subject invention relates to a fluid pressure intensifier (32) for increasing the pressure of an incompressible fluid and comprises a fluid reservoir (112) supplying fluid to a cylinder...
5253477 Master cylinder and booster assemblies  
In a master cylinder and booster assembly for a vehicle hydraulic system, the booster has a housing provided with a bore, an inlet connected to a source of hydraulic pressure, and an outlet...
5197285 Modular digital actuator  
A modular digital actuator is formed by interconnecting a plurality of modules. Each of the modules includes a housing having a pair of different sized axially extending cylinder sections in which...
5161865 Hydraulic modulator with working piston connected to control piston  
A system for controlling a fluid pressure such a brake fluid pressure of a vehicle includes a pressure control cylinder having a control piston for varying a pressure of a confined fluid, and a...
5143429 Hydraulic modulator with equal, opposing chambers formed by a piston  
A system for controlling a fluid pressure includes a pressure modulating cylinder unit having a piston and a cylinder housing defining first and second fluid chambers separated by the piston, a...
5125234 Hydraulic cylinder apparatus of the type actuated by booster  
In a hydraulic cylinder apparatus of a type actuated by a booster, a plunger chamber (39) of a booster (32) is connected in communication with an extension cylinder chamber (35) of a hydraulic...
5107681 Oleopneumatic intensifier cylinder  
An oleopneumatic load intensifier apparatus for creating a rapid advance of a tool carrying rod followed by slow advance of the piston rod at an increased load. The apparatus has a master cylinder...
5081841 Hydraulic braking system with second booster chamber  
The invention is directed to a hydraulic braking system for an automotive vehicle having a power source for generating a hydraulic power pressure, a reservoir, a master cylinder, a hydraulic...
5062268 Fluid actuator  
A hydraulic actuator is formed by a first element incorporating a plurality of different sized piston cavities by a first set of piston elements which cooperate with a second set of piston...
5058384 Digital actuator  
A hydraulic actuator is formed by an assembly including a first element, a cylinder, a body section and a chamber. The first element is provided with a first set of a plurality of different sized...
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...
5002166 Dual mode motor vehicle clutch control system  
A dual mode clutch control system for a motor vehicle in which the operator has the choice of operating the clutch manually or having the clutch operated in a power mode in response to movement of...
4872310 Electro-hydraulic actuator assembly  
An electro-hydraulic actuator assembly comprises a master piston-and-cylinder 32, 42 connected to be driven by a rotary actuator 56 and hydraulically connected to a slave master...
4843819 Hydraulic brake booster with parallel booster pistons  
A brake booster has a first booster cylinder and a booster piston disposed in it for displacing a master cylinder piston to pressurize a brake circuit. A tappet displaces the first booster piston...
4833884 Fluid actuator for driving article-processing apparatus  
A fluid actuator including at least two cylinders connected to a common pressurized-fluid supply mechanism. Actuation units are connected to piston rods of the cylinders, respectively. The piston...
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...
4781095 Pusher  
A pusher comprises a body with a plurality of piston holes provided on a front surface thereof, pistons slidably fitted to the piston holes and each having a front end extending in front of the...
4779422 Master-cylinder-actuated plunger for hydraulic brake booster valve  
A brake system wherein an input from an operator operates a first master cylinder (12) produces first and second hydraulic fluid pressures. Flexible conduit (22 and 24) carries the first and...
4726190 Pressure generator with check valve  
On actuation, each pressure generator at each of a plurality of locations along a conduit develops a pressure rise in the conduit to energize a pressure sensitive device in fluid communication...
4633726 External hydraulic driving system for motorcycle brake, clutch and gear shift  
A hydraulic driving system for motorcycle gear shift includes a primary cylinder combination, a secondary cylinder and a set of delivery conduits for handling hydraulic fluid connected...
4576417 Power assisted braking system with wheel lock control  
A brake control system in which the master cylinder has two pressurizing chambers for each brake circuit. Three brake circuits are disclosed in detail. One piston of each set of pressurizing...
4543791 Power brake unit  
A power brake unit for automotive vehicles comprising a valve adapted to meter fluid from an energy source into a booster chamber to act upon a booster piston arrangement. The booster piston...
4526169 Fine control system for a glass electrode or the like  
An improved system for finely and precisely controlling the operational position of a glass electrode, micropipette, micro surgical knife or the like with the aid of hydraulic remote control...
4505519 Braking system for automobile vehicle formed by a tractor and a trailer  
According to the invention, the braking system includes two tandem master cylinders (100, 200), the first (100) having a first pressure chamber (110) connected to the left brake (132) of the...
4502280 Hydraulic applications  
An apparatus that controls movement of an arm through a gaseous or liquid fluid. The apparatus incorporates a plurality of longitudinally extensible hose members that expand and contract their...
4455828 Hydraulic power unit  
A maximum displacement, reciprocating air operated demand only hydraulic power unit for supplying hydraulic fluid under pressure to one or more hydraulic motors, comprising a pneumatic power...
4382364 Hydraulic braking systems for vehicles  
In a power braking system for a vehicle a supply of fluid from a power source is utilized to augment the output pressure to be supplied to a brake from a pedal-operated brake control valve...
4300352 Hydraulic pressure integrator  
A hydraulic pressure integrator for averaging a plurality of independent input pressures comprising a base plate, a pivot plate mounted above the base plate for pivotal movement about a horizontal...
4248046 Vent accumulator for hydraulic integrator  
A vent accumulator for a hydraulic integrator of the type having at least three pistons arranged in end-to-end relationship within an elongated housing. Each piston is adapted to move under...
4244185 Master cylinder for hydraulic brake system  
A master cylinder includes a master cylinder piston which is slidable by a booster with a hydraulic transmission interposed between the booster and the master cylinder piston. The booster includes...
4241581 Synchronizer for hydraulic actuators  
A synchronizer is provided for synchronizing the movements of two hydraulic actuators. The synchronizer consists of a two-piston pump which supplies hydraulic fluid to both actuators. The two...
4220007 Servo-assisted hydraulic master cylinder  
A servo-assisted hydraulic master cylinder has a variable ratio effect so that brake fluid is initially displaced to the brakes at a high rate with respect to driver pedal movement and then at a...
4194437 Hydraulic servo mechanism  
A base structure defining a generally hemispherical seat and a generally spherically shaped body mounted in seating engagement with the seat. The base defines a pair of diametrically opposed guide...
4170876 Method and apparatus for controlling a press plunger system  
A drive system for use in a press in which a pneumatic cylinder and hydraulic pressure transformer are coupled together and connected by separate valves to respective gas and hydraulic sources....
4134266 Hydraulic control apparatuses combined with friction brakes  
Apparatus for hydraulic control of friction brakes of an automobile vehicle which comprises a first master-cylinder directly connected to the hydraulic brake circuit and operated by the driver's...
4127360 Bumpless pump apparatus adjustable to meet slave system needs  
Pumping apparatus which incorporates connected piston type positive displacement, slip free pumps is disclosed. They provide pumped outputs at a common displacement rate. They run out of phase to...

Matches 1 - 50 out of 110 1 2 3 >