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Match Document Document Title
8122906 Pressure driven apparatus for sequential control of a cementing head  
A pressure-driven apparatus sequential controls a multiphase operation, e.g., of a cementing head. A transmission arm including a pawl is supported on a cam shaft connected to a pawl cylinder...
6357475 Pneumatic sequential control valve  
A pneumatic sequential control valve for successive aeration and deaeration of two consumers, wherein for purposes of aeration compressed air is initially applied to the first consumer and only...
5879137 Method and apparatus for pressurizing fluids  
A high-pressure valve assembly having a valve body that defines a preferably cylindrical valve cavity, a fluid inlet, a fluid outlet and a plurality of valve ports; and a fluid pressure...
4907490 Vehicle climate control apparatus  
Apparatus for controlling a vehicle climate control system having pneumatic passages provided with doors or baffles to regulate the flow of conditioned air to the passenger compartment. The...
4739692 Liquid contractility actuator  
A contractility actuator includes a longitudinal quadrilateral mesh of relatively inelastic segments with anchor points at either end, an expandable bladder confined within the mesh and means for...
4736670 Remotely operated fluid power control system for automotive vehicle  
A remotely operated fluid power control system for an automotive vehicle includes a selector for selecting one of several desired operating modes for equipment connected to the fluid power control...
4723474 Pneumatic stepping actuator positioner  
A pneumatic control system for a reversible stepping actuator has an analog pneumatic control signal and an analog signal indicative of actual position of the actuator. Imbalance in these signals...
4679489 Automatic leveling system for blast hole drills and the like  
A dual automatic leveling system for a blast hole drill during raising and lowering which includes "fine" level sensors to detect an attitude within a fine level range and "coarse" level sensors...
4564043 Stepping valve  
This invention relates to a pneumatically actuated stepping valve for an automatic control of inlets and outlets for a pneumatic fluid. Each stepping movement is performed in response to a...
4514128 Signature stacker including improved intercept means  
A signature stacker providing improved structure for intercepting a stream of signatures of newspapers from a infeed conveyor of a press apparatus and having improved apparatus for controlling...
4503751 Digital fluid stepping motor  
Three radially extending push rods (26, 28, 30) make contact with an undulating cam surface on the periphery of a cam (10). The push rods (26, 28, 30) are driven inwardly by electrical solenoids...
4495968 Pneumatic control system  
A pneumatic control system for machinery and the like which have a plurality of intermittently operated pneumatic use points or work stations. The system includes a common pneumatic source of...
4450696 Venturi power supply and actuator system  
A control system for a washing machine having an aspirator connected to the discharge side of the inlet valve. The aspirator vacuum port provides a vacuum signal through a one-way valve to a...
4442754 Robotics positioning system  
In this fluid powered positioning system, a sliding assembly includes a slide plate that moves linearly with respect to a frame. A plurality of "working" linear cylinder actuators are mounted to...
4430923 Wrist mechanism in an industrial robot  
A wrist mechanism in an industrial robot comprises a wrist, a rotary type actuator which is rotatable in clockwise and counter-clockwise directions, a first positioning board which can define...
4248260 Control device for center pivot irrigation units  
A control device is designed for center pivot irrigation units of the type having an elongate water carrying pipe with a plurality of support vehicles spaced therealong, and wherein each of the...
4170165 System for operation of gas controlled devices embodying an automatic programmable value sequencer adapted to cease operation upon the occurrence of a malfunction  
The specification discloses an automatic programmable valve sequencer employing a rotatable cam cylinder operating adjacent cam valves by means of cam segments mounted thereon to directly operate...
4112823 Methods and apparatus for controlling an hydraulic cylinder  
Automated control apparatus for an intermittently extended hydraulic cylinder is disclosed which governs cylinder elongation such that the rate of elongation is essentially constant with respect...
4095722 Dripless dispenser and method of dispensing a flowable material  
A flowable material dispenser having a bore therethrough. A resilient pinch-off tube is removably fitted within the bore. A flowable material reservoir is connected to one end of the tube. At...
4092903 Vibratory drive mechanism  
Opposed pivotally mounted tamper arms are oscillated by respective single-acting hyraulic piston assemblies controlled by separate hydraulic duplex rotary distributing valves. Fluid supply and...
4068595 Track tamper  
Opposed pivotally mounted tamper arms are oscillated by respective single-acting hydraulic piston assemblies controlled by separate hydraulic duplex rotary distributing valves. Fluid supply and...
4068560 Fluid-powered stepping motor  
A hydraulic-powered motor for stepwise operation has a plurality of radial pistons in a rotatable cylinder block, the pistons engaging a cam track having a number of indentations which is...
4066002 Fluid pressure operated rotary stepper actuator  
A rotary stepper actuator having a rotatable output shaft provided with a cam portion fixedly secured thereto and engaged by a plurality of pairs of oppositely acting fluid pressure responsive...
4004497 Automatic systems programmer  
A programmer includes an intermittently rotating drum, having thereon a series of actuators arranged in a pre-selected manner, for actuating in a predetermined order, a plurality of devices, such...
3991578 Self-advancing mine roof supports  
A control means, for a mine roof support having hydraulically extensible prop means and some other pressure-fluid-operated component (e.g. a hydraulic ram for advancing the support), comprises a...
3941031 Pneumatic controller for controlling the operation of an automatic machine  
A controller for controlling the operation of an automatic machine which includes a number of pneumatically operated devices, for example a machine for blow moulding hollow glass articles,...
3930434 Hydraulic controller  
The hydraulic controller is for controlling the operation of a plurality of hydraulically controlled devices. Hydraulic fluid may be selectively distributed by the controller to various controlled...
3913448 Hydraulic actuator  
A hydraulic actuator comprises a cylinder containing a double-acting piston, a port adjacent each end of the cylinder and a piston-controlled intermediate port opened by the piston in moving to an...
3900090 Engine remote control  
This disclosure pertains to a fluid control apparatus which provides remote control and sequencing of an engine from one or more operator stations. A clutch control valve at any operator station...
3893301 Apparatus and process for graphic image transfer  
A plurality of graphic images, which may be electrophotographically produced and which are removably disposed in alignment longitudinally of a web arranged for movement in a lineal path between...
3868966 ELECTROPNEUMATIC VALVE  
An electropneumatic valve comprising a body with branching off channels for the delivery of compressed gas to the actuating mechanisms and its discharge into the atmosphere. Each branch of the...
3855860 FLUID FLOW ACTUATED DEVICE  
A positive displacement fluid actuated device for measuring flow volume and flow rate of a fluid. The device has at least one cylinder containing a pressure wall means movable by fluid pressure...
3820438 NEUTRAL TIME DELAY FLUID CONTROL CIRCUIT  
3783742 REMOTE ROTARY CONTROL  
This disclosure pertains to that class of remote rotary controls wherein an actuated rotary element situate remote from a control rotary element duplicates or reproduces the rotary action of the...
3768663 CONTROL FOR WELL PIPE RACKS AND THE LIKE  
Control means for a well pipe rack and the like wherein a plurality of fluid pressure operated devices are sequentially operated. The pipe rack includes a finger board having horizontal arms...
3721267 VALVE CONTROL DEVICE  
A control device operably connected to a pressure compensated flow control valve for controlling the rate of flow of fluid therethrough. The device includes a spring connected to the shaft of the...
3707630 PNEUMATIC POWER ASSIST APPARATUS FOR SPOT FILM DEVICE  
A three axis pneumatic power assist system which is particularly adapted to move a spot film device over a patient lying on an X-ray table. Three separate pneumatic circuits are adapted to power...
3654961 ROTARY PERCUSSION DRILL HAVING A HYDRAULICALLY ACTUATED PERCUSSION DEVICE  
The percussive forces are imparted to the drill rod by a hydraulically actuated reciprocating piston housed in a cylinder having fluid openings on opposite sides of the piston. Fluid under...
3590686 VALVE ASSEMBLIES FOR SEQUENTIALLY ACTUATING FLUID-OPERATED PARTS  
Valve assemblies for sequentially actuating parts which are operated by pressure fluid. The assembly includes a housing which accommodates a plurality of control valves for movement, the several...
3561486 PNEUMATIC PROGRAMMING MEANS AND THE LIKE  
This disclosure relates to a program member that is rotated relative to a reading head to fluidly interconnect together various ports interrupting the reading surface of the reading head by a...
3548714 BINARY DIGITAL TRANSDUCER  
3538813 REMOTE CONTROL SYSTEM  
3516330 INCREMENTAL FEEDING APPARATUS  
3503827 APPARATUS FOR TREATING PLASTIC WITH HEAT AND PRESSURE  
3500861 TIMING APPARATUS  
3500719 SYSTEMS FOR CONTROLLING SELF-ADVANCING MINE ROOF SUPPORT UNITS  
3495500 SAFETY CONTROL SYSTEM FOR HYDRAULICALLY OPERATED MACHINES  
3473436 PROGRAMMED CONTROL DEVICE INCLUDING SPOOL BOX AND RELATED MECHANISM  
3463051 POSITION CONTROL EQUIPMENT  
3453935 MINE ROOF SUPPORT SYSTEMS  

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