Abstract: An annular blowout preventer (BOP) includes a housing comprising a bore extending through the housing, an annular sealing element configured to be displaced inwardly into the housing bore, and an actuating member configured to be actuated radially or perpendicularly with respect to an axis of the annular sealing element to compress the annular sealing element inwardly into the housing bore.

Abstract: A connecting valve structure and an anesthetic filling system are provided. When a valve core assembly is in the open state, a pipe and a filling port are in seal fit, besides, the connecting ring, the seal pipe, and the drug guiding pipe are integrated as a whole, when the seal pipe is inserted into or pulled out of the filling port of the evaporator, no BHT exudate occurs. In addition, an inner pipe wall of the seal pipe, a surface of the connecting ring facing towards a first pipe end, and an outer pipe wall of the drug guiding pipe opposite to the seal pipe together form a pressure stabilizing groove which is used to equilibrate pressure in the container and the evaporator during the open state.

Abstract: A drain plug device is provided with a plug lid, a mounting member inserted in an overflow port, an operation handle provided corresponding to an opening of the mounting member at one end thereof so as to protrude from a surface of a sidewall, a transmission member configured to transmit a driving force generated by a pivoting operation of the operation handle to the plug lid side, and a handle moving mechanism capable of moving the operation handle. The handle moving mechanism is configured to make an amount of protrusion of the operation handle with respect to the surface of the sidewall when the drain port is open smaller than an amount of protrusion of the operation handle with respect to the surface of the sidewall when the drain port is closed. Whereby a good draining efficiency at the overflow port side is secured when draining is performed therethrough.

Abstract: Disclosed herein is a flow control device. The flow control device comprises a sheet made from a shape memory alloy. The flow control device also comprises at least one slit through the sheet. At least the one slit defines at least one flap in the sheet. The flow control device further comprises at least one electrically-resistive trace printed on the sheet at least one of on or adjacent at least the one flap. Upon receipt of an electrical current, at least the one electrically-resistive trace configured to generate heat for deforming at least the one flap relative to the sheet and opening an aperture formed in the sheet.

Abstract: Precision in proportional operation of pinch valves along an application-specific path of opening and/or of closing is provided in proportionally controlled pinch valves, systems and methods. Included is the advantageous feature that pinch valves and pinch valve controlling systems and methods can be enhanced by carefully controlling not only two primary operational positions—either fully open or fully closed—but also in-between positions as are required for an application of a user of the pinch valve. The effect on the fluid flowing through tubing that is engaged by the pinch valve head between fully open and fully closed is considered, determined and used to achieve pinch valve operation that is linear in flow change and/or linear in pressure change along the closing path and/or opening path through the tubing. The pinch valves can include a normally closed port that opens when the system experiences a shut-down condition.

Abstract: A bite valve (100) comprises an outer barrel (105) of low-friction, soft but durable, laterally-compressible material and a rigid axially moveable inner stem (110). Closing the valve urges the distal face of a stem-mounted gasket (115) distally against the sharpened tubular proximal end of a barrel-embedded flanged rigid sleeve (120) through which fluid passes. The stem is continually urged distally by captive compression spring (140) which pushes proximally against sleeve (120) and distally against a cap (135) mounted on the stem's distal end. When a user bites the barrel's indented exterior bite zone (150), two opposing sides of a conical surface (155) inside the barrel contact and slidably urge the stem proximally, pulling the gasket away from the sleeve end, thereby opening the valve. After drinking, a user releases their bite, allowing the spring to again move the stem distally, pushing the gasket back into a (default) sealing condition pressed against the sleeve's sharpened proximal end.

Abstract: An apparatus for actuating a valve includes an actuator body with a central body axis and a proximal end and a distal end, the proximal end having a connector selectively connectable to a valve assembly. An actuator stem extends along the central body axis. A torsional spring assembly has at least one torsional spring with a spring axis that is offset at an angle from the central body axis. A motion translator engages an inner end of the torsional spring assembly and the actuator stem, selectively converting rotation of the at least one torsional spring about the spring axis of the at least one torsional spring to linear movement of the actuator stem along the central body axis.

Abstract: A rapidly modulated hydraulic supply is disclosed. The rapidly modulated hydraulic supply can include a chamber for receiving fluid. The rapidly modulated hydraulic supply can also include a displacement member operable to displace the fluid from the chamber. In addition, the rapidly modulated hydraulic supply can include a flow modulation system operable to vary the flow rate of the fluid output from the chamber. A first flow rate corresponds to a first output pressure, and is different from a second flow rate corresponding to a second output pressure for a like movement of the displacement member.

Abstract: A valve assembly for operation within a valve body of a pump includes an axial centerline, a poppet guide having a stem, and a poppet slidingly coupled to the poppet guide so that the poppet and the poppet guide define an internal cavity. The valve assembly also includes a flexible poppet guide mounting system coupled to the poppet guide and the poppet and includes a variable-area flow restrictor in fluid communication with the internal cavity. The flexible poppet guide mounting system is configured to support the poppet guide and the poppet for lateral and axial movement of the poppet guide and the poppet relative to the axial centerline. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity.

Abstract: A clamp device for a flexible tube which can minimize the sealing area and prevent leakage of fluid and achieve easy release of the clamp device of a flexible tube.

Abstract: There is provided a control valve including a casing, a rotor that has a rotary shaft rotatably supported by the casing via bushings, and a sealing ring that is disposed on an inner side of each bushing in an axial direction. Both end portions of the rotary shaft are formed into stepped shapes which respectively come into contact with the bushings from the inner side in the axial direction. Areas of both the end portions of the rotary shaft projected in the axial direction are set to be equal to each other. Penetration holes which allow portions on outer sides of the sealing rings in the axial direction to be open to the atmosphere are respectively formed on a bottom wall portion and a lid body of the casing.

Abstract: A pilot valve includes a housing, a motor secured in the housing and including a rotating output shaft, and a rocker disposed in the housing and coupled with the motor via a cam mechanism. The rocker is pivotable between a CLOSED position and an OPEN position by operation of the motor. The rocker includes a left-side boss and a right-side boss that are positioned in a path of the cam mechanism, where the left- and right-side bosses serve as cam stops in the CLOSED and OPEN positions, respectively. The housing may include features to better secure the motor, and the assembly may be configured to prevent unintended changes of state during periods of nonuse.

Abstract: A quick water intake device comprises a tubular main body. The main body has a channel, and a first seal core, and an elastic piece. Under the action of the elastic piece, the first seal core can block the channel. A second seal core is also slidably arranged inside the main body. The second seal core is located between the first seal core and an outlet end of the main body, and when subjected to forces, the second seal core can move toward the first seal core and drives the first seal core to compress the elastic piece. A sealing structure arranged between an outer wall of the second seal core and an inner wall of the main body can form a seal between an outer wall of the second seal core and the main body to block the channel when the second seal core moves toward the outlet end.

Abstract: A dosing cap for dispensing a measured dose of material includes a housing, a sealing member and a biasing member. The housing has an inlet end residing within a container and receives the material. An outlet end dispenses the material. A dosage region is interposed between the inlet end and outlet end. The sealing member is received within the housing. The sealing member includes a first seal proximate the inlet end to selectively open or close the inlet end and a second seal proximate the outlet end to selectively open or close the outlet end. When the biasing member is unbiased, the inlet end is open, the outlet orifice is closed and the dosage region is charged with material. When the biasing member is compressed, the sealing member is biased so that the inlet end is closed and the outlet orifice is open whereby the material is dispensed.

Abstract: This coupling (R) includes a male element (A) including a male body (2) provided with a locking relief (22), a purging ring (4) movable between a rear position, in which the purging ring closes off a purging passage of the male body, and a forward position, and a female element (B) including a female body (12, 14), a ball-retainer (23) carrying locking balls (18) of the male body, in a housing between a first position, in which they are able to oppose the removal of the locking relief, and a second position, in which the locking balls allow the removal of the locking relief, a valve body (25) secured to the ball-retainer, including coupling balls (27) suitable for securing the valve body and the female body in translation, an inner ring (29) suitable, in a retaining position, for keeping the valve body and the female body coupled by the coupling balls when the female element is uncoupled from the male element.

Abstract: A blade for vacuum valves is provided with an opening/closing plate having one side surface coming into contact with a moving passage part. A screw coupling part is formed on the other side surface and a first elastic member seating part is formed on the outer circumference of the screw coupling part. A shaft connecting bar is provided on the other surface of the opening/closing plate having a contact protrusion part having a second elastic member seating part and a connecting part formed in the contact protrusion part so that a connecting unit is inserted. The first elastic member is provided between the first elastic member seating part and the second elastic member seating part to guide the elastic connection between the opening/closing plate and the shaft connecting bar.

Abstract: The invention relates to an actuator for a valve in a refrigeration system. The invention also relates to a valve with such actuator, and to a refrigeration system with such valve. The actuator comprises an elongated Shape Memory Alloy (SMA) element extending along two or more string-like extensions from a distant end to a proximate end in relation to a valve element of a valve. The SMA element, when forming part of the valve, may extend from the distant end to the proximate end connected to a housing of the SMA element, however, electrically insulated from the housing. An encapsulation may provide a thermal resistance, a thermal conductor and/or an electrical resistance between the SMA element and other elements or the surroundings of the SMA element.

Abstract: A valve includes a longitudinally movable valve body that is arranged in the valve, wherein the valve housing has at least two guide grooves, with which auxiliary guide elements, arranged on the valve body, engage an exterior surface of the valve housing. The guide grooves of the valve housing are shaped such that they define a combined translatory and rotary movement path of the valve body with the aid of the auxiliary guide elements in order to open or close the valve.

Abstract: A gap control device that works with a plug on a valve assembly for use in high-temperature applications. The plug may include two parts and a compressible seal that, when compressed, engages with an adjacent wall of a cylinder or “cage” typical of a trim assembly. In one embodiment, the gap control device forms a hard stop that expands in response to high temperatures. This feature prevents excess over-travel between the two parts of the plug in the high-temperature applications so as to limit stress and wear on the compressible seal.

Abstract: A rotary fluid regulator (1, 300) has a housing (2) with at least one inlet opening (3, 4) and at least one outlet opening (5). A valve element (7, 100) is received rotatably in the housing (2) and is a hollow fluid duct (8). A drive element (19, 301, 401, 501) is provided to rotate the valve element (7, 100) so that a fluidic connection between the at least one inlet opening (3, 4) and the at least one outlet opening (5) can be adjusted or blocked. A brake element is provided for influencing or blocking the movement of the valve element.