Matches 151 - 200 out of 253 < 1 2 3 4 5 6 >


Match Document Document Title
3786725 HYDRAULIC TYPE MOLD CLAMPING DEVICE  
A mold clamping device of hydraulic type having a mold clamping cylinder including a mold clamping piston coupled through a ram portion thereof to a movable plate for supporting a movable mold,...
3785156 HYDRAULIC CONTROL FOR SELF-LOADING SCRAPER WITH THREE-SPEED ELEVATOR DRIVE  
A hydraulic control system for a self-loading scraper elevator drive having a plurality of pumps for combined control of the scraper bowl, ejector, and elevator drives, the flow from the pumps...
3768263 HYDRAULIC CONTROL SYSTEM FOR TWO-SPEED WINCH  
The hoisting winch of a mobile crane is driven by two hydraulic motors connected to a common drive shaft. A control system for the motors includes manually controlled directional and speed control...
3765181 SERVOSTEERING ARRANGEMENT  
An arrangement of power steering cylinders having connected pistons is provided wherein an engine operated servopump is utilized to pressurize the cylinders. Normally one cylinder is used, but in...
3760689 CONTROL SYSTEM FOR AUTOMATICALLY SEQUENCING OPERATION OF A PLURALITY OF HYDRAULIC PUMPS FOR SUPPLYING A PLURALITY OF HYDRAULIC ACTUATORS  
A machine such as a mobile hydraulic crane has a telescopic boom comprising two independently movable boom sections. Each boom section is movable to extended and retracted positions by separate...
3752281 REVERSING CLUTCHES WITH SELECTOR AND PRESSURE MODULATING VALVE  
A power transmission including a forward, friction plate, modulating type friction clutch; a reverse, friction plate, modulating type clutch; a selector control valve assembly therefor, which...
3747472 FLEXIBLE CABLE HYDRAULIC CONTROL MEANS  
A hydraulic control system for controlling remotely positioned hydraulic cylinders, the system including a number of hydraulically actuated control valves which selectively communicate the...
3731592 VALVING MECHANISM FOR HYDRAULIC STORAGE MEANS, ESPECIALLY FOR HYDRAULIC TESTING APPARATUS  
The present valving mechanism forms part of the load piston cylinder means, for example, of a hydraulic testing apparatus. The load cylinder is provided with a first control inlet at each end...
3727737 PRESSURE MODULATING SYSTEM FOR REVERSING CLUTCHES AND THROTTLE CONTROL  
A pneumatic clutch control assembly for a ship's propulsion system which sequentially controls the inflation and exhaust of pneumatically operated clutches and also controls the throttle system of...
3724333 OPERATING SYSTEM FOR AIRCRAFT BARRIER NETS  
Device for operating an aircraft arresting mechanism in which the barrier supporting standard is raised and lowered with respect to the runway by two servomotors, one being larger than the other,...
3722366 PRECISION ANTI-WHIP RAM TYPE MACHINE  
A hydraulically powered ram type machine employing series connected hydraulic drive motors, drives the ram at faster than normal speed, then through normal speed following engagement with the...
3720059 HYDRAULIC SYSTEM AND VALVE THEREFOR  
A two-pump hydraulic system having a hydraulic load which, when actuated, is automatically pressurized by both pumps through a novel valve system. Normally each of the pumps circulates hydraulic...
3715017 INCHING VALVE WITH BYPASS VALVE FOR FILLING CLUTCHES  
A system for controlling gradual engagement and disengagement of the forward and reverse clutches of a fluid power shifted transmission. The system includes a pump for supplying pressurized fluid...
3713296 HYDRAULIC SYSTEM FOR INDIVIDUALLY CONTROLLING A PLURALITY OF HYDRAULIC MOTORS  
A hydraulic system for independently controlling a plurality of individual reversible variable speed hydraulic motors from a common pressure supply source. A plurality of control valves, one for...
3688648 AUTOMATIC CONTROL VALVE SYSTEM FOR HYDRAULIC MOTOR  
Plural pairs of service ports are controlled by spool valves, each responsive to service port pressure, for connecting plural hydraulic motors in series-parallel, in series or in parallel...
3686856 HYDRAULIC SERVOMOTOR WITH AIR MOTOR  
The hydraulic servomotor with air motor is a device which integrates functions performed to date by the big set consisting of hydraulic compound machine, hydraulic conduits, control unit and...
3680713 FLUID POWER DEVICE  
A fluid power device including wall means defining a cylindrical chamber therewithin and including piston rod means therein having primary and secondary pistons associated therewith, so that upon...
3650364 FRICTION COUPLING WITH DUAL PISTONS  
A clutch or brake actuating assembly, e.g., for use in a vehicle automobile transmission to engage a friction device in which first and second pistons are axially slidable in a cylinder. A...
3641876 TWO-SPEED HYDRAULIC CONTROL SYSTEM  
A backhoe having a stick cylinder and bucket cylinder selectively operable with a hydraulic control system having separate pumps to supply hydraulic fluid under pressure to the stick and bucket...
3640066 HYDRAULIC POWER TRANSMISSION SYSTEMS  
When the fluid supply to an hydraulic motor normally driving a vehicle is insufficient to maintain the momentum of the vehicle, pressure reversal occurs in the motor which then acts as a pump. A...
3603206 AIR-HYDRAULIC LINEAR FEED DEVICE  
A main frame mounts an air cylinder acting through an hydraulic cylinder with the pistons of the two cylinders forwardly connected linearly moving a fluid motor, gear train and spindle forwardly...
3602098 HYDRAULIC PRESS WITH HIGH AND LOW CAPACITY RECIPROCATING FLUID MOTORS IN TANDEM  
A hydraulic press comprising high and low capacity reciprocating motors structurally connected in tandem and independently controlled. With this construction, the high capacity motor provides...
3599534 PREFILL VALVE FOR HYDRAULIC CLAMPING DEVICES  
A prefill valve for providing a large quantity of relatively low-pressure hydraulic fluid to fill the space behind a moving piston for a portion of its operating cycle and thereafter sealing off...
3584536 MULTIPLE AREA HYDRAULIC ACTUATOR  
Two or more fluid motors of the expandable chamber type are connected to a source of pressurized fluid, and are cross-connected to one another through valving, such that the power delivering...
3582245 COMBINED PUMP AND MOTOR  
A combined pump and hydraulic motor comprising a plurality of independent sections at least some being of different characteristics from each other, each section comprising an impeller and an...
3563136 VARIABLE FORCE HYDRAULIC PRESS  
A variable force hydraulic press of the general type which includes a frame having a base portion with a support surface, and a head portion spaced above said base portion. The head portion has a...
3561322 STABILITY AUGMENTATION SYSTEM  
A stability augmentation system is provided which has triple redundancy and is fail-functional. For each axis desired to be controlled, a hydraulic servocontrol mechanism is provided having three...
3554522 CONTROLLED TILING APPARATUS FOR METALLURIGICAL FURNACE  
Apparatus for tilting a metallurgical furnace at duplicatable predetermined speeds including "slow," "quick" and "throw" tilting rates. Forward and backward tilting of the furnace can be performed...
3554089 SERVOSTEERING SYSTEM  
A dual cylinder hydraulic steering booster system is disclosed which has one primary servomotor normally operable, but which system also has a secondary servomotor automatically pressurized to...
3543645 CONTROL EQUIPMENT FOR HYDROSTATIC DRIVE OF A VEHICLE  
3543615 TRACER CONTROL CIRCUIT FOR A LATHE OR THE LIKE  
3541791 HYDRAULIC DEVICE FOR CONTROLLING THE ACTUATING CYLINDERS OF THE GEARSHIFT FRICTION CLUTCHES AND BRAKES OF SELF-PROPELLED VEHICLES,MAINLY TRACTORS  
3530767 MACHINE WITH HYDRAULIC BOOM  
3529513 TWO-SPEED NUT-RUNNING TOOL WITH TANDEM MOTORS  
3520230 HYDRAULICALLY OPERATED SERVOMECHANISMS  
3516182 SELF-LEVELLING IRRIGATION DITCHER MACHINE  
3507352 APPARATUS FOR MOVING AN AIR FILM PALLET OMNIDIRECTIONALLY RELATIVE TO A VEHICLE  
3504595 HYDRAULIC CONTROL DEVICE  
3588033 TRACER CONTROL MECHANISM  
3567240 DUAL RATE JACK SYSTEM FOR LIFT TRUCKS  
3820257 SELF LOADING SCRAPER HYDRAULIC CONTROL SYSTEM WITH AUTOMATIC LOAD RELIEVING CIRCUIT  
3465648 MULTIPLE OUTPUT FLUID CONTROL SYSTEM  
3447319 HYDROPNEUMATIC SYSTEM  
3443380 TWO-PUMP SYSTEM FOR LIFT CYLINDER  
3434392 HYDRAULIC SYSTEM FOR OPERATING A CYLINDER  
3422727 TWO SPEED RAM TYPE MACHINE  
3421389 VARIABLE SPEED DRIVE  
3410427 Refuse packing system  
3410295 Regulating valve for metering flow to two hydraulic circuits  
3400636 Pneumatic circuit for rapidly transferring fluid under pressure from a work cylinderto a storage tank for subsequent use  

Matches 151 - 200 out of 253 < 1 2 3 4 5 6 >