Abstract: A valve includes an actuation assembly including a drive device that generates a driving force, a needle shaft connected, at one end thereof, to the drive device to receive the driving force from the drive device and perform linear motion, a needle nut that is coupled to the drive device and that has an empty space through which the needle shaft passes, so as to guide the linear motion of the needle shaft, and a valve disc coupled to an opposite end of the needle shaft, a body is coupled with the actuation assembly and that has a valve opening inside, the valve opening being selectively opened or closed as the valve disc, which is inserted into the body in which water flows, performs linear motion, and a clip that fixes the body and the actuation assembly such that the body and the actuation assembly are not separated from each other.

Abstract: A valve actuator (10) includes an electric motor (12) that opens, and also closes if need be, the valve via a gearing (15). A voltage supply device (19) has an input rectifier circuit and a buffer device (24) connected thereto, for example in the form of a capacitor C. From the voltage buffered by the capacitor C, a motor control circuit (25) obtains the energy for operating the electric motor (12). To prevent the valve (11) from being kept open too long after the voltage supply at the input (20) has been switched off, a switch-off device (34) is provided, which, after elimination of the voltage at the input (20), cuts off the energy flow from the voltage buffer device (24) to the electric motor (12).

Abstract: An air outlet nozzle, in particular for a motor vehicle, includes: a tube-shaped nozzle body; a first air guide element which is arranged in the tube-shaped nozzle body, and which is in contact with the tube-shaped nozzle body and forms a screw shape; a second air guide element which is arranged in the tube-shaped nozzle body, and which is in contact with the tube-shaped nozzle body and forms a screw shape. The first air guide element and the second air guide element are offset from one another in the tube-shape nozzle body, such that a first airway and a second airway are formed in the tube-shaped nozzle body. A moving adjustment element closes the first airway in a first position, and releases the first airway in a second position.

Abstract: A valve actuator (10) has a damping circuitry including a capacitive damping circuit (37), which is activated in the event of generator operation of the stepper motor (18). The damping circuitry, together with the motor winding (26), forms a resonance assembly LCR, which has the effect of stabilising and regulating rotational speed. The rotational speed of the stepper motor (18), running in generator operation, is held constant within limits, specifically without the control intervention of control circuitry. Therefore, the damping circuitry can operate even in the currentless state of the control system and is reliable regardless of external current supply. Fast closing is achieved, and excessively long post-running of the motor (18) is reliably prevented.

Abstract: A system including a flow control system, including a flow control mechanism configured to control a flow of fluid through a fluid passage, a rack and pinion system coupled to the flow control mechanism and configured to transfer motion from an actuator to the flow control mechanism, a biasing element coupled to the rack and pinion system, wherein the biasing element is configured to store potential energy as the flow control mechanism transitions from a closed position to an open position or an open position to a closed position, and a failsafe device configured to release the potential energy stored in the biasing element to open or close the flow control mechanism.

Abstract: An automatic, wireless electric valve designed to be installed on a main fluid pipe that receives wireless, remote open and close commands, and which comprises an external casing, an electric motor, an internal power supply, an inner pipe with an inlet, an outlet, and a disc, an inner clamp, a primary cogwheel that is attached to the electric motor by means of an axle, a secondary cogwheel that is attached to the rotation shaft, and an electronic control mechanism.

Abstract: A trip cock device includes a housing, a cam dog, a handle engaging the cam dog, a piston assembly at least partially received within the housing, and a fault detection valve secured to the piston assembly. The piston assembly includes a piston and the fault detection valve is configured to open and close. The fault detection valve engages the cam dog when closed.

Abstract: An air shutoff valve includes a passage for supplying air, a swing gate, a shaft attached to a reset handle, and a spring to urge the gate toward its closed position. A trigger assembly secures the shaft and gate in the open position and includes an actuator, a cam, and a rocker arm. A cam surface of the arm has a notch to receive a sear point of the cam. Movement of the handle against the spring causes the cam contact surface of the cam to follow the cam surface to cause the arm to rotate such that the sear point is received in the notch. Actuating the actuator causes the arm to pivot away from the cam such that the sear point is released from the notch, wherein the spring causes the shaft to move the gate to its closed position.

Abstract: The invention relates to a shutter actuator including a translatably guided carriage (10) rigidly connected to the shaft (4) in the housing (3), and comprises: a rack (11) that meshes with the cog (20) of the outlet shaft (4) linked to the flap (2-1) of the shutter (2); a bearing (13) for a triggering spring (70); a bearing member (12) for a cocking member (30) that drives the carriage (10); and a locking notch (14-1) for receiving a locking member (42) supported by a locking arm (40).

Abstract: Actuators having override apparatus are described herein. An example actuator having an override apparatus includes a first actuator stem coupled to a control actuation member. The override apparatus is operatively coupled to the actuator. A spring is coupled to an override member to move the first actuator stem to a predetermined position in response to an override condition.

Abstract: An automatic shut-off valve shuts off fluid flow in the event of abnormal amounts of fluid flow. A rotor inside the valve turns when fluid flows through the valve. The rotor causes a pneumatic pump to operate and cause increased air pressure. The increased air pressure causes a shut-off piston to move to a closed position when a predetermined air pressure is achieved. The shut-off valve also includes an adjustable bleeder needle to slowly bleed off air pressure when the fluid flow stops and thereby resets the valve. A detent is provided for holding the shut-off piston in the open position. A detent spring and compression bolt are provided for adjusting force on the detent. The shut-off valve is manually closed using a trip arm connected to the detent. The shut-off piston is reset by actuating a reset plunger that moves the piston back to the open position.

Abstract: A valve system includes a fusible plug valve that functions as a fusible plug valve and as a manual valve. When functioning as a fusible plug valve, the fusible plug valve opens at a high temperature to release gas from a high pressure tank to outside. When functioning as a manual valve, the fusible plug valve is opened manually to release the gas from the high pressure tank to the outside.

Abstract: A flood detection and valve shutoff device which comprises a water sensitive sensor. A mechanism is for retaining the water sensitive sensor on a floor near a water heater. Another mechanism is for biasing a valve in a water inlet pipe of the water heater to a closed position. A lanyard in a taut condition extends between the water sensitive sensor and the biasing mechanism, so as to keep the valve in an open position. When the water sensitive sensor detects water on the floor the lanyard will be released from the water sensitive sensor, causing the biasing means to move the valve from the open position to the closed position.

Abstract: A tripper unit for actuating a device (e.g. valve-closing actuator) upon contact with water. Basically, the tripper unit is comprised of a housing having a replaceable cartridge therein which, in turn, is wrapped with an adsorbent paper which prevents a plunger from moving downward. When a leak occurs, water will flow into the housing and into contact with the absorbent paper which will quickly disintegrate to allow a compression spring in said housing to move the plunger downward to thereby actuate the unit.

Abstract: An automatic flow shut-off unit for shutting off water to an appliance (e.g. commode) when a leak or overflow occurs. The unit includes an outer housing having a ball valve mounted thereon wherein the valve is connected between the water supply and the appliance. A tripper unit is mounted in the outer housing and has a plunger therein. The valve is connected to the plunger by a length of actuation material (e.g. flexible cable). A compression spring is positioned in the tripper unit to normally bias the plunger downwards. A cartridge having a water reactive material (e.g. commercially-available toilet paper) thereon is removably mounted in the outer housing wherein the water reactive material when dry supports the plunger in a cocked position but which will quickly weaken and disintegrate upon contact with water.

Abstract: A valve housing 1 with valve seat 10 incorporated in a fluid line features a closing element 2 with a valve disk 11 and a valve stem 12 extending through and sealed in the housing wall which, on the outer side, is locked by means of a locking pin 17 actuated by a solenoid. Owing to the geometry of the valve disk and the annular gap 20 as well as the action of a spring element 23, the inlet-side pressure acting upon the closing element 2 exceeds the outlet-side pressure, as a result of which the fluid flow via the annular gap is interrupted in only a few milliseconds merely by the permanently present, higher mechanical pressure if the valve stem is released merely by the movement of the locking pin effected by a small and lightweight solenoid 18, actuated on the basis of a signal indicating an event.

Abstract: A fluid valve operator for moving a moveable valve element such as a disc (14) that is pressed forcefully against a surface of a valve frame (12). The valve operator includes first and second electric gear reduction motors (22, 24) that each has a movable driving member such as a rack (34, 36) that moves against a handle (20) of the valve element to move the valve element to a connect or disconnect position. Each motor withdraws its driving member from the valve member handle after moving the valve member. A default mechanism (90) moves the valve element handle to a preselected one of the positions, such as the disconnect position, when pressure of a fluid falls below a preselected level.

Abstract: An actuator includes a valve spindle, for adjustment of an opening position for a valve and a drive piece for the valve spindle. The drive piece is connected to the valve spindle, by a storage device, which may be pre-tensioned to a particular pre-tensioned value during a pre-tension process, in such a manner that, with a pre-tensioned storage device the opening position can be set without altering the value of the pre-tensioning. The actuator is particularly suitable for a valve on a steam turbine or a gas turbine. As an example, the actuator may be a hydraulic damping unit, integrated in a damping piston. The damping unit permits a reliable end-travel damping for the valve, in particular in the case of rapid closure.

Abstract: Safety shutoff apparatus can close a valve using a pressure operable device coupled to and acting upon the valve. The proximal end of a pressure line is coupled to the pressure operable device for applying fluid pressure thereto in order to operate the pressure operable device. A soluble plug at the distal end of the pressure line can seal it in order to maintain pressure at the pressure operable device. By placing the soluble plug next to an object that is subject to leaking, the soluble plug can dissolve when a leak occurs and release the pressure in the pressure line. The released pressure results in closure of the valve when mechanical movement is produced by the pressure operable device in response to the release of pressure.

Abstract: An automatic mechanism is provided for cutting-off water flow to a plumbing system of a house, an apartment, a business or the like, while at the same time draining water/plumbing systems when subjected to low/freezing ambient temperatures. The mechanism includes a valve body housing a reciprocal valve which is operative to place an inlet and an outlet in fluid communication while cutting off a drain port, and in a second position the inlet is closed and the outlet and the drain port are placed in fluid communication to drain the water system when the valve is shifted automatically under the influence of biasing means in reaction to low temperature sensing.

Abstract: An automatic shutoff valve for shutting off the main water supply to a building in the case of detected water leak. A ball valve is provided with a mounting kit for rendering the valve automatic. The apparatus includes a housing adapted to fit over the valve body and secured directly to the pipes with adjustable clamps. The kit includes a two-section lever member pivotally mounted to the valve. The one-quarter turn movement of the lever member determines the opening and the closing of the valve. A spring-loaded cable and a system of pulleys control the lever member. A retaining member is pivotally mounted to the floor of the housing and a pair of arms extends outwardly therefrom with one arm of the retaining member engaging a slot in the upper end of the internal section of the lever member to retain the valve in the opened position.

Abstract: A safety device for shutting off a gas valve at the detection of a gas leak has an add-on adaptor device having a first knob mounted over an existing gas knob and affixed thereto; a spindle coupled to the first knob, capable of rotating the fist knob, and the gas valve knob, between an open position and a closed position. A second knob is rotatably mounted substantially perpendicular to the spindle, and is provided with firm cantilever which is extended to provide a firm support along side the gas valve knob so as to cause rotation of the gas valve knob when the second knob is rotated in one direction. A spinning is attached to the second knob and is in a wound state when the second knob is parallel to the first knob when the first knob is in the open position, and in an unwound state when the first knob is in the closed position.

Abstract: A system for regulating flow of fluid through a flow line, such as a supply line, the line having a flow controller such as a valve, the system having a sensor for generating a signal in response to a parameter, a transmitter for transmitting a corresponding signal to a receiver at a remote location, a receiver for receiving the signal from the transmitter, an actuator for operating a regulator in response to the signal received by the actuator for operating the valve or other flow regulator.

Abstract: The present invention provides a method of manufacturing an integrated circuit using a polishing head release mechanism. The polishing head release mechanism is for use with a polishing tool having a polishing head and a polishing platen. In one embodiment, the polishing head release mechanism comprises a platen protective shield, shield-to-platen retainers, and retaining clamps. The shield-to-platen retainers are configured to removably couple the platen protective shield to the polishing platen. The retaining clamps are couplable to the platen protective shield and configured to couple the polishing head to the platen protective shield.

Abstract: A fire suppression valve for use with a cannister of fire suppression material. The valve has a safety shuttle valve located in a discharge port for preventing unintended discharge of fire suppression material in the absence of connection to a discharge hose. The shuttle valve has an actuating surface and a body portion with shuttle ports. An outside end of the body portion projects into an outlet connection sized to receive the discharge hose. When the hose is connected, it abuts the outside end to support the shuttle valve in an open position. When the hose is removed, the shuttle valve is free to slide to a closed position, in which the actuating surface substantially blocks the discharge port. Accordingly, when the valve is triggered without an attached hose, the pressurized suppression material pushes against the actuating surface to move the shuttle valve to the closed position.

Abstract: A thermal release coupler is provided for use in a fire and smoke damper assembly. The fire and smoke damper assembly includes an array of damper blades carried in a damper frame which are moveable between open and closed positions; a linkage joining the damper blades; and a damper actuator operatively connected to the linkage for driving the damper blade array between the open and closed positions. The thermal release coupler has a drive shaft coupled to the damper actuator and a connecting shaft coupled to the damper blade linkage and rotatably coupled to the drive shaft. A drive coupler and a connecting coupler, each being secured to and carried on the drive shaft and the connecting shaft, respectively, are maintained in fixed relationship by a linking member which has a first fixed state and a second free state.

Abstract: A device for power actuating a valve or other controlled unit, including a member operable by movement in opposite directions to move the controlled unit to different positions, a spring yieldingly urging the member in one of those directions, and a latching mechanism which is urged by the pressure of a body of fluid to a condition releasably retaining the member against movement by the spring. The latching mechanism is constructed to have a mechanical advantage enabling a relatively small force exerted by the body of fluid to resist a much greater force exerted by the spring. The latching mechanism includes two latching elements which are interengageable to releasably retain the member against movement by the spring, with one of the elements being shiftable in opposite directions by a manual operating member to manually actuate the member and also to vary the position in which the latching mechanism retains the member.

Abstract: A butterfly valve is utilized to control air flow in the environmental control air distribution system of an aircraft. A linkage system enables the valve to be manually controlled under normal conditions but to be shut off remotely in case of an emergency condition.

Abstract: A fuel gas control valve capable of internationally acceptable operation, including a main valve operable in an on-off mode by an electromagnetic actuator that receives a signal from a conventional electric thermostat. A pilot valve is initially operated by a manual control, and is retained in the operating position by a power unit responsive to sensed presence of a pilot flame. A latching mechanism associated with the manual control interrelates with the main valve and overrides operation of the electromagnetic actuator in the event the pilot flame is extinguished for any reason. The valve also includes a mechanism that retains the manual control in pilot position until the pilot flame is established.

Abstract: A flow control device, such as a valve, has a body with two portions which define two valve chambers, an inlet, which is coupled to a source of pressurized fluid and which opens into one of the valve chambers, and an outlet coupled to downstream devices, such as sprinkler heads, and which opens into the other valve chamber. A piece of collapsible tubing couples the two valve chambers. A shaft extends into the valve and is provided with a mechanism for pinching the collapsible tubing shut which causes the collapsible tubing to collapse due to the pressure exerted on its exterior by the pressurized fluid surrounding it. A coil spring is attached to the shaft and the valve body. When the valve is closed, i.e., the collapsible tubing collapsed, the coil spring is biased to cause the shaft to rotate if released. The shaft is prevented from rotating by a fusible link. When the temperature to which the valve is exposed reaches or exceeds a predetermined temperature, the fusible link melts.

Abstract: A valve actuator (A, B) for automatic actuation of a rotary valve mechanism (V, V') in response to a specific exigency, such as fire. The actuator includes a housing (13) affixed in relation to the valve, having a spiral torsion spring (11, 11'). A spring coupling (20) is connected to the spring for being rotatably driven for actuation thereby of the valve mechanism (41, 61) when released. An arm (6) having a camming surface (32') operatively prevents rotation of the coupling until released. A releasable link (L) secures the arm against releasing movement. The coupling is operatively connected to a shaft (40) of the valve mechanism and mating elements (26, 27) carried by the coupling and the housing respectively lockingly interengage the coupling and housing upon actuation such that the valve mechanism is precluded from rotating in a direction contrary to the actuation direction upon actuation.

Abstract: A pressure-driven fire-suppression valve wherein a single electrical switch is mechanically actuated by coaxially related first and second sealed piston components, which are compliantly loaded in the direction away from switch actuation. The first piston component is of lesser area and has its switch-actuating relation via abutment with the second (larger-area) piston component; this first piston component continuously responds to suppressant-charge pressure, via a pressure-fluid connection to the upstream valve chamber, i.e., to the upstream side of the closed position of the valve member (poppet). As long as this upstream-sensed pressure is above predetermined threshold, the compliant-load force will be overcome, and the switch will be mechanically actuated, but upon leakage below threshold, the mechanical actuation is released, for a change of state at the switch.

Abstract: The invention contemplates a quick-opening valve for release of pressurized gas to suppress a hydrocarbon or the like fire and/or explosion. A piston or poppet-valve member is retained by mechanical-latch mechanism in its readiness condition, normally closing off pressurized liquified suppressant gas against release for fast discharge via a discharge port. Latch release is via short low-friction, low-inertia direct action which is independent of the pressure differential across the valve member.

Abstract: An actuator for a rotary valve includes a fail-safe mechanism for automatically opening or closing the valve upon the occurrence of a predetermined condition. The actuator also includes a mechanism for permitting the manual operation of the valve from the open to closed position, and vice versa, and to a continuum of positions between the open and closed positions even when the fail-safe mechanism is activated. A biased clutch activates the fail-safe mechanism and also couples a worm-gear drive for effecting the manual operation of the valve.

Abstract: In a freeze protection valve, a wax actuator is situated in a heat-conductive housing to which heat is conducted from the liquid system being protected. The housing prevents the actuator from triggering the valve to its opened condition while the liquid system is hot, but permits a rapid response when the liquid system is cool. In a snap-action freeze protection valve, the actuator is carried by the valve stem, and heat is conducted from the valve body to the valve stem through a sleeve through which the valve stem slides. The actuator moves a cam within the valve stem which operates a ball-type latch. The latch holds the valve in the closed position until the actuator releases the latch.Also disclosed is a remote-controlled valve operating mechanism which uses an electrically heated wax actuator to effect valve closure.

Abstract: A freeze protection valve can be reset under cold ambient conditions without the need for artificial heating of the valve's temperature sensor. An auxiliary latch is used to hold the valve element closed. The auxiliary latch is automatically released as the primary latching mechanism of the valve becomes operative upon an increase in temperature of the liquid system served by the valve. Release of the auxiliary latch is effected by virtue of a small downward movement of the valve stem resulting from a camming action inherent in the operation of the valve's primary latch.In one version of the valve, a simple, drop-away key temporarily holds the valve stem down until the primary latch becomes operative. In another version, the valve stem is reset remotely through a bowden wire, and the resetting mechanism automatically engages an auxiliary latch.

Abstract: A restraining block engages the valve stem of a safety valve, holding the valve open. The block is selectively rotatable within an auxiliary housing from a locked to a released position wherein both block and stem are free to move along the stem axis, permitting the valve to close.

Abstract: A snap-acting drain valve for draining a fluid system upon the occurrence of a predetermined temperature condition of the fluid. A spring-loaded valve is held closed against the spring force by a latching mechanism comprising a spring loaded latching lever engaging a shoulder on the valve stem, and a temperature sensitive actuator controlling movement of the latching lever. Upon occurrence of the predetermined fluid temperature, the actuator permits the latching lever to disengage from the valve stem shoulder, thereby releasing the valve which opens under spring force. The valve is non-modulating and will not close until manually reset even if the fluid temperature should increase to a level above the predetermined level.

Abstract: One or more balanced gas lift valves mounted on an oil production tube deep in a well are responsive to a remote valve control transmitter at the surface for controlling the ejection of a fluid, as a gas for example, into the production tube of oil for decreasing the specific gravity for lifting the oil and for increased production of the oil. This electronic remote controlled gas lift has fluid vent means therein for equalizing the fluid pressure on all sides and both ends thereof for reducing resistance to movement for thus requiring minimum energy for operation thereof, and for providing a highly efficient gas lift system for lifting oil in the well.

Abstract: A limit switch consisting of a driven member connected to a rotary driver member the operation of which is controlled by the limit switch, so as to turn therewith, one or more poles geared to the driven member so as to be rotated thereby, one or more fingers extending laterally from each of the poles, and one or more electric switches mounted adjacent each pole so as to be engaged and operated by one of the fingers at one position in the angular movement of the pole. The gear connection between the driven member and the poles is disengageable by manual means and readily adjustable to provide a coarse setting of the relative angular positions of the driver and poles, and the extension of the fingers from the poles is continuously adjustable to provide a fine setting. The ratio of the gears is such that the poles turn faster than the driver. This multiplies the motion of the fingers and hence provides greater accuracy in the operation of the switches.

Abstract: A two-position dump valve for use in a vacuum powered or pressure differential powered cruise control system. The dump valve is closed upon energization of a solenoid, provided the brake pedal is in the brake release position. It opens when the brake pedal is moved to actuate the vehicle brakes.

Abstract: The emergency shut-off unit for escaping gas is comprised of a cylinder and a valve piston that runs through the cylinder, and the cylinder is screwed to a thread hole formed on the bottom wall on straight line extension of a projecting shaft of a diaphragm of a gas pressure adjusting unit, and the valve piston is placed inside of the cylinder at its tip portion and at the other end side a pin is detachably inserted into a location of the piston protruding from the cylinder so as to be retained, and when the pin is pulled out from the valve piston, the tip of the valve piston jumps off resiliently from the cylinder and the projecting shaft of the diaphragm is pushed up by the junping off of the valve piston and a valve body is made to close the nozzle portion of a gas supply passage of the gas pressure adjusting unit.