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Document |
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4074834 |
Casting head with toggle lever actuated valve
A casting head for cooperation with a mold in which hardenable synthetic resins can be cast under a high temperature, comprising: a stationary and a respectively movable head part; at least one...
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4067540 |
Segmented plug valve
This invention relates to a valve characterized by a hollow cylindrical body, the interior of which houses a segmented conical plug for axial movement with its apex pointed upstream. A...
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4050435 |
Valve control for cylinder cutout system
A fluid-operated internal combustion engine cylinder cutout device selectively operable to function as a rigid extension of a valve pushrod, as a deactivating means between the pushrod and its...
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4029290 |
In service exercisable tilt disc check valve
An in service exercisable tilt disc check valve is provided having an externally controlled power actuator connected to the valve shaft for moving the valve disc relative to the valve seat. The...
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4027744 |
Pneumatic pulse hydraulic controlled valve for controlling a lubricating device
In apparatus for controlling a lubricating device which is actuated by pulses of compressed air, the apparatus including a drive piston disposed in a cylinder to undergo reciprocating movement...
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4019713 |
Rapid shutoff extraction check valve
A rapid shutoff extraction check valve has a movable valve body cooperating with a valve seat that divides a valve housing into an upstream housing chamber communicating with the valve inlet and a...
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4017053 |
Fluid pressure monitoring safety system
A shut-off valve in a fluid line closes by spring pressure and/or line pressure and incorporates a control chamber wherein pressurized control fluid acting on a piston opens the valve in opposition...
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4008875 |
Sequence valve for clamping apparatus
A fluid control valve which operates accurately in response to the pressure difference that exists between a pair of ports in the valve. The valve features a spool which is normally biased to one...
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3986554 |
Pressure controlled reversing valve
In accordance with an illustrative embodiment of the present invention, a pressure controlled reversing valve includes a housing having a flow passage and ports to communicate the passage with the...
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3985046 |
Control valve for a torque converter lock-up clutch or the like
A control valve pressurizes an outlet conduit when a variable fluid pressure signal rises above a first predetermined level and depressurizes the outlet conduit when the variable signal...
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3980270 |
Valve for controlling the flow of gases under high pressure from storage vessels
Valve for controlling the flow of gases under high pressure from storage vessels such as cylinders comprising a solenoid operated pilot valve built into the valve body and operable to cause a...
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3970280 |
Venting valve for a steam decorticator
A venting valve for a steam decorticator has a valve chamber connected by way of a straight conduit to the pressure vessel of the decorticator. A replaceable valve seat is provided in the...
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3955623 |
Subsea control valve apparatus
A control valve apparatus adapted to be stationed in a subsea blowout preventer stack and used in connection with a production or drill stem test of an offshore well from a floating vessel,...
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3949964 |
Electromechanically-operated valve
An improved electromechanically-operated valve is provided having a main balanced piston-valve controlling an inlet port, and a cooperable relatively-movable valve-stem piston-assembly electrically...
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3931832 |
Timing device for pneumatic control systems
This invention relates to pneumatic control systems, particularly to a timing device for the same, wherein a control device is maintained at a constant speed by means of a balance wheel or...
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3923282 |
Vacuum valve construction
A vacuum valve includes a valve member or valve shutter which is engageable on a valve seat in a valve housing in order to close off a vacuum connection. The valve shutter is driven by a drive...
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3902321 |
Speed control valves for stirling type hot gas engines
In a Stirling cycle engine a gas operated valve member couples a working chamber and a dead volume chamber to control the gas flow therebetween in response to the maximum and minimum pressures of...
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3898403 |
Pressure sensitive control apparatus with magnet actuated switch and valve
A fuel ignition system and a flow switch therefor which can be used for leak detection and otherwise. Upon detection of the flow, ignitor elements in the system are heated to cause combustion of...
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3889703 |
Sleeve valve arrangement
An explosively operated, hermetically sealed sleeve valve arrangement including a separable piston to move its sleeve and means for locking the sleeve in the open position such that the valve will...
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3887161 |
Arrangement for closing a kelly-cock supported on a rotary swivel with a stem therefrom
Support means is carried on a rotary swivel with which rotary swivel a kelly-cock is connected. Means are connected to the kelly-cock for closing the valve in the kelly-cock upon movement of such...
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3884251 |
Cylinder-operated valve
A fluid flow control valve especially for fluid loading arms, the valve including a pneumatic or hydraulic powered cylinder-piston means to close it against whatever upstream pressure might be...
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3865132 |
Pilot operated relief valve
An Assembly comprising of a piston/cylinder means adapted to a spring loaded pressure relieving valve wherein the piston area by being greater than the seat area of the valve will when the cylinder...
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3863990 |
PNEUMATIC FEED SYSTEM HAVING A CALL-DUMP-FILL CYCLE
A pneumatic tobacco feed system to cigarette making machines operates on a call-dump-fill and thereafter hold cycle. The system includes a discharger over each hopper of a making machine. The...
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3845932 |
VALVE-BRAKE
A fluid operated valve for pressurizing fluid as well as opening and closing a valve orifice so that the valve can be used in an automatic brake for vehicles to apply the brakes when a...
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3827668 |
LOCKING SYSTEM FOR A BLOWOUT PREVENTER
A locking system for a blowout preventer having a plurality of individually actuated hydraulic rams. A pilot operated locking valve for each ram for locking the ram in the closed position in which...
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3809201 |
MODULATING VALVE FOR VEHICLE TRANSMISSION SYSTEMS
A modulating valve capable of shortening the operating time of the clutch and also preventing the generation of an impulsive torque in the clutch-transmitted power by discontinuously changing the...
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3792833 |
BOOST TERMINATION VALVE
A boost termination valve for use in the oxidizer line of a hypergolic rot motor comprising a flapper valve normally latched in open position to permit flow of oxidizer therethrough, and a...
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3737603 |
PRESSURE RESPONSIVE PISTON ACUATED SWITCH AND VALVE MEANS
A pressure responsive mechanism for use in dual hydraulic brake systems of automative vehicles wherein the front and rear brakes of the vehicle are provided with independent hydraulic brake systems...
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3726302 |
PRESSURE REGULATING VALVE
The time responsiveness of a pressure regulating valve is increased by including a metering element mounted on the main valve element being movable therewith and relative thereto so as to respond...
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3726325 |
VALVE MECHANISM FOR CONTROLLING THE FLOW OF A PLASTIC MATERIAL FOR MANUFACTURING AND FILLING A PLASTIC HOLLOW BODY
A device for manufacturing and filling a plastic hollow body includes a hollow supporting sleeve for a hollow plastic blank which is to be blown up, and a valve in the sleeve cooperating with the...
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3706323 |
BALL FLOW CONTROL VALVE
A fluid flow control valve in which the element which variably impedes the flow of fluid therethrough is a ball, the position of which is controlled by a second ball in rolling engagement therewith.
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3704855 |
DEVICE FOR CONTROLLING DISPLACEMENT OF AN ELEMENT
A device for controlling the displacement of an element, the said device comprising a rod by means of which the element may be displaced, a first piston having a portion mounted for sliding...
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3695578 |
GATE VALVE INCLUDING FLUID OPERATED LOCKING DEVICE
This invention relates to a gate valve and, more particularly, to fluid flow control apparatus having a sliding gate operated by a hydraulic actuator and an arresting mechanism for determining the...
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3667505 |
ROTARY BALL VALVE FOR WELLS
A subsurface safety valve for a well employs a rotary ball valve assembly which includes a ball member interposed between annular seats positioned within the housing. The upper seat is mounted on a...
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3650506 |
ROTARY VALVE WITH LINE PRESSURE CONNECTED ACTUATOR
A rotary valve having a reciprocable, fluid-actuated operator which rotates the closure member to "fail" position by means of line pressure when there is a failure of power fluid normally used to...
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3631888 |
REGULATION OF OPERATING FLUID FLOW TO AND FROM A USER DEVICE
A cylinder chamber is provided in a housing and a passage for flow of operating fluid to and from a user device. A valve is arranged in this passage movable between a normal closed position and an...
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3631887 |
FLUID-FLOW-REGULATING APPARATUS
An apparatus for regulating the flow of an operating fluid to and from a user device. Housing means has a cylinder chamber and a passage for flow of the operating fluid. Valve means is movable in...
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3623694 |
FLUID-OPERATED VALVE
A fluid-operated valve for controlling the flow of pressurized fluid to and from a fluid-operated device, such as a hydraulic cylinder, is provided. The valve design provides an initially large...
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3623509 |
CHECK VALVE CONTROLLING HYDRAULIC APPARATUS
A check valve means including a main check valve and an auxiliary check valve mounted on the main check valve, is slowly opened by first opening the auxiliary check valve and then opening the main...
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3618891 |
DEVICE FOR SELECTING EXTREME VALUE OF PLURAL INPUT SIGNALS
A fluid-operated apparatus for selecting extreme magnitudes, that is, the maximum or minimum magnitudes from several input signals, including a housing which is divided into several uniform...
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3613719 |
COMPRESSOR VALVE ARRANGEMENT
A compressor valve arrangement having a device for regulating delivery quantities and wherein a valve plate can be raised from a valve seat against a closing force by means of control pistons...
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3610570 |
PROTECTIVE ADAPTER FOR DIAPHRAGM-TYPE VALVE
An adapter having a body portion with a bore for slideably receiving a valve-operating projecting rod on a plunger and also having a counterbore for receiving the head of the plunger. A seat is...
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3608859 |
CONTROLLABLE CHECK VALVE
A controllable check valve, for a hydraulic system, includes a relatively elongated body having means defining a valve zone, fluid inlet means and fluid outlet means. The body is formed with a...
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3597557 |
COMPRESSED GAS ACTUATED ELECTRICAL SWITCH WITH SLEEVE VALVES
An electrical circuit breaker of the gas blast type includes a double-acting cylinder having the piston element connected to one of the contact members for opening and closing the circuit through...
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3589669 |
FLUID FLOW CONTROL RELIEF VALVE
A relief valve for use as a pilot valve especially but not exclusively in a pump relief valve arrangement and comprising a valve casing with a through-flow passage therethrough for passage of a...
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3570804 |
HYDRAULIC VALVE OPERATOR HAVING MANUAL OVERRIDE MECHANISM
A valve operator mechanism for valves having linearly actuated reciprocating gates. The valve operator mechanism includes an operator base portion and an operator closure member which cooperate...
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3533596 |
SYSTEM FOR THE ADJUSTMENT OF A VALVE
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3524620 |
AUTOMATICALLY CONTROLLED BELLOWS VALVE
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3504882 |
HIGH-PRESSURE HYDRAULIC SYSTEM
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3477466 |
ELEVATOR FLUID CONTROL VALVE MECHANISM
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