| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 251061000 | Flexible wall expansible chamber reciprocating valve actuator | 48 |
| 20090101852 | Passage switching valve - A passage switching valve includes a lower actuator and an upper actuator. the lower actuator includes a case, a diaphragm, an operating rod, and a spring. A lower end of the operating rod is connected to a valve element. The upper actuator includes a case, a diaphragm, an operating rod, and a spring. An upper end of the lower operating rod is abuttable on a lower end of the upper operating rod. The upper pressure chamber and the lower negative pressure chamber are communicated with each other. Each of the negative pressure chambers of the actuators is to be supplied with negative pressure. Each of the operating rods is held against vibration by a bush. The lower spring is set to be greater in urging force than the upper spring. | 04-23-2009 |
| 20090242810 | Pressure control valve - A pressure control valve is provided with a valve main body ( | 10-01-2009 |
| 20090278065 | DIAPHRAGM CONTROLLED BYPASS VALVE - A diaphragm controlled bypass valve includes a diaphragm valve portion and a needle valve portion. The diaphragm valve portion regulates pressurized gas supplied from a pump to determine whether or not to open or close a needle valve. The needle valve portion includes an inlet port, an outlet port and a flow pathway defined between the inlet and outlet ports. A needle pin is disposed within the flow pathway and is coupled to a diaphragm positioned within the diaphragm valve portion. When the diaphragm is displaced in response to changes in pressure, the needle valve pin is likewise displaced which opens and closes the flow pathway. A second flowpath disposed in the needle valve portion communicates with the inlet port to redirect the supply of pressurized gas to a relief port. | 11-12-2009 |
| 20090321667 | SERVO VALVE MODULES AND TORQUE MOTOR ASSEMBLIES - Servo valve modules and torque motor assemblies are provided. In an embodiment, a servo valve module includes a housing assembly, a diaphragm, a valve assembly, and a spiral washer. The housing assembly includes two chambers, a valve port, an intake port, and an outlet flow channel. The diaphragm extends across one chamber to divide the chamber into a pressure reception section and a pressure transmission section. The valve assembly includes a valve seat adjacent to the valve port in the other chamber, a valve element to seat and unseat against the valve seat, and a valve plate in the pressure transmission section including a valve stem extend axially and disposed in the valve port to contact the valve element. The spiral washer is coupled to the valve element and extends across the chamber to provide a preload against the valve element to bias the element toward the closed position. | 12-31-2009 |
| 20100108920 | DISC COMPONENT FOR GAS CONTROL VALVES - A disc for use in a pneumatic valve includes a stiffening insert encased in a flexible body. The stiffening insert acts to protect a central actuation region of the disc against radial compression, which may arise if the disc is used to seal against a bore hole, and against material flow towards the actuation region away from a clamped periphery. The behaviour of the disc in a valve assembly is therefore more predictable and reproducible. The flexible body may further be tensioned across the stiffening insert. | 05-06-2010 |
| 20100193716 | Pneumatic Actuator Having Diaphragm Retention Ring - A pneumatic valve actuator for moving the valve stem of a control valve comprises an upper casing and a lower casing each having flanges, a diaphragm plate operatively coupled to the valve stem, a spring arranged to bias the diaphragm plate in a first direction, a diaphragm movable in conjunction movement of the diaphragm plate, an air inlet defined in the casing and arranged for attachment to an air supply source to bias the diaphragm plate in a second direction, and a ring disposed between the upper flange and the lower flange and positioned to engage the outer portion of the diaphragm. The ring includes a protrusion positioned to engage a surface of the outer portion of the diaphragm. | 08-05-2010 |
| 20110084222 | VALVE ELEMENT FOR A CONDENSATE TRAP - There is provided a valve element for a condensate trap comprising an expansion chamber in the form of a metallic bellows having a variable axial length and having first and second ends sealed with first and second end caps respectively. A valve closure member is provided on the second end cap and is arranged to cooperate with a valve seat. A first guide member is coupled to the first end cap and axially extends into the bellows and a second guide member is coupled to the second end cap, axially extends into the bellows and cooperates with the first guide member. This allows relative axial movement between the first and second end caps but restricts relative radial movement between the first and second end caps. This helps to ensure that the valve closure member properly seats on the valve seal. | 04-14-2011 |
| 20110140014 | HIGH PRESSURE DIAPHRAGM VALVE WITH EXCHANGEABLE SEAT ASSEMBLY - A high pressure diaphragm gas valve comprises a removable seat assembly ( | 06-16-2011 |
| 20110192998 | Linear Fluidic Actuator - A linear fluidic actuator comprising an upper actuation deformable surface suitable to induce a displacement in an actuation direction L and a wall delimiting an internal cavity wherein the shape of the actuator is a pillar; the wall, the cavity and the upper surface of a base form the lower part of said pillar, where h1 is the highest dimension of the internal cavity at rest according to the actuation direction L; a part forms the upper part of said pillar where the upper surface of said upper part is the upper actuation deformable surface, the bottom surface of said upper part closes the upper part of the cavity so as to form an upper surface of said cavity and where h2 is the distance at rest from the top of the upper surface of the internal cavity to the upper actuation deformable surface; the height ratio h1/h2 is comprised between 0.2 and 10; a fluidic inlet is provided and suitable for introducing a fluid in the internal cavity. | 08-11-2011 |
| 20140097364 | ADJUSTABLE DIAPHRAGM RETAINER PLATE - Disclosed herein are improved diaphragm actuators capable of preventing the inhibition of movement of a diaphragm retainer plate when a stretched or improperly sized diaphragm is used. Such diaphragm retainer plates may be adjustable such that the thickness from the distal side to the proximal side is increased. Methods of preventing such inhibition of movement are also disclosed. | 04-10-2014 |
| 20140166912 | Sliding Sleeve Having Contracting, Segmented Ball Seat - A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port. | 06-19-2014 |
| 20140264103 | Shaped Diaphragm with Retaining Feature - A valve diaphragm for a pneumatic valve includes a diaphragm body having an annular shape defining an inner diameter and an outer diameter. The diaphragm body includes a conical portion extending radially inward from the outer diameter toward the inner diameter and a curved portion extending between the conical portion and the inner diameter. | 09-18-2014 |
| 20150021501 | FLUID HANDLING DEVICE AND FLUID HANDLING METHOD - A micro fluid chip includes a first chip and a second chip. The first chip includes a first substrate having a fluid channel and a partition wall, and a first film made of resin. The second chip includes a second substrate having a recess, and a second film made of elastomer. The second film has an elastic modulus higher than that of the first film. The first chip and the second chip are stacked in such a manner that the partition wall and the recess face each other with the first film and the second film therebetween. By setting the inner side of the recess to a negative pressure, a gap is formed between the first film and the partition wall, and thus a fluid channel is opened. | 01-22-2015 |
| 20150345656 | GAS TURBINE ENGINE FLUID SUPPLY SYSTEM HAVING AT LEAST ONE AIRBAG, AND METHOD FOR MAINTAINING NON-INTERRUPTED CIRCULATING TURBOMACHINE FLUID FLOW DURING A NON-POSITIVE G-FORCE EVENT - A fluid supply system for providing a turbomachine fluid to a component of a gas turbine engine is disclosed. The fluid supply system includes a fluid container, a moveable barrier, and an airbag. The moveable barrier fluidly divides the fluid container into a first portion and a second portion. The moveable barrier is moveable between a flow-permitting position and a flow-restricting position. The turbomachine fluid experiences a circulating flow between the component and the second portion of fluid container when the moveable barrier is in the flow-permitting position. The circulating flow is at least partially impeded by the moveable barrier when the moveable barrier is in the flow-restricting position. The airbag is positioned within the first portion of the fluid container. The airbag is selectively operable to move the moveable barrier from the flow-permitting position to the flow-restricting position. | 12-03-2015 |
| 251610100 | Flexible wall valves fluid | 26 |
| 20080224074 | FLEXIBLE VALVE PLATE AND LOW FRICTION CONTROL SERVO EMPLOYING THE SAME - A low friction control servo is provided that includes a housing having an inlet and an outlet. A flexible valve plate is disposed within the housing and includes a curved arm. The curved arm is adapted to flex between (i) an closed position wherein airflow through the outlet is substantially impeded, and (ii) an open position. An actuator is coupled to the housing and engages the curved arm to control the position thereof. | 09-18-2008 |
| 20090008582 | VALVE ELEMENT - The valve element for attachment to a flexible bag may include one or more flexible layers intended to extend over a hole disposed through a sidewall of the bag. In its normal condition, the layer or layers are in adjacent contact to each other or to the bag sidewall and thereby cover and seal the hole. During evacuation, the layer or layers displace to provide a collapsible and expandable channel that allows air to move from the hole to an exit point. To facilitate sealing of the valve element, a tacky surface is included in the valve element. The tacky surface can have a tackiness quality that normally holds the layers and/or sidewall together but that can be overcome during evacuation to expand the channel. | 01-08-2009 |
| 20090032747 | VALVE FOR FLUIDS | 02-05-2009 |
| 20090072172 | Valve bonnet assembly - An improved bonnet assembly for a weir type or radial style valve, comprising a hollow bonnet housing an actuator assembly comprising an actuator connected to a spindle, the hollow bonnet having a plurality of orifices to allow free entry and exit of a liquid such as a cleaning solution within the bonnet and to enable the liquid to thoroughly contact and exit the bonnet assembly without the need of disassembly. The valve or parts of the valve such as the bonnet assembly or its components are made of performance engineered polymeric material to prevent corrosion and/or galling, and also reduce the weight and sometimes the cost of the valve without sacrificing quality and performance. | 03-19-2009 |
| 20090101853 | FIRING VALVE - A valve for generating a flow of pressurized fluid in response to a command, including: a discharge conduit for discharging the pressurized fluid; a valve body surrounding the discharge conduit; a chamber that connects the discharge conduit to the valve body; a cover covering the discharge conduit and forming the chamber; and a flexible membrane positioned within the chamber. The cover includes an access hole for charging the valve body with the pressurized fluid, and for commanding the discharge of the pressurized fluid. The discharge conduit includes a grid in that part thereof that communicates with the chamber. The flexible membrane is fixed to the center of the grid. | 04-23-2009 |
| 20090272922 | Pressure-actuated normally open fluid valve - A normally open non-electric valve includes a flow path through an apertured valve seat. cavity isolated from the flow path is sealingly closed off adjacent the valve seat by a flexible diaphragm. The diaphragm is sufficiently flexible to be pushed and held away from the valve seat by fluid flowing in the flow path. When it is desired to close the valve, a pressure medium is introduced into the cavity so as to force the diaphragm against the valve seat and interrupt the fluid flow in the flow path. The normally open valve can inexpensively be converted from an inexpensive electric solenoid valve by removing the plunger, spring and coil from the electric valve, closing off the plunger cavity with a flexible diaphragm, and selectably introducing a pressure medium into the cavity when it is desired to close the valve. | 11-05-2009 |
| 20090272923 | Adaptable safety nipple for nursing infants - The invention is disclosed as a nipple having a detachable coupler. In a first exemplary form the coupler the coupler is made to receive the nipple and to make a seal at the portion of the nipple abutting the coupler. The seal is made to prevent loss of fluid at the juncture or interface where the nipple meets the coupler. In the first exemplary form, the coupler has threads, which permit the coupler to be screwed onto a bottle having threads around the opening of the bottle. Fluid passes from the bottle into the coupler, through the coupler into the nipple and from the interior of the nipple into the baby's mouth. In a second exemplary form of the coupler, the coupler has an elastic opening to permit the coupler to be stretched over the opening of a fluid container. In the exemplary embodiments the interior of the nipple has a valve, through which all fluid must pass before exiting the nipple and entering the baby's mouth. The valve is made to limit the flow of fluids from the fluid container. When the flow rate is exceeded, the valve closes to prevent the maximum flow rate to be exceeded. | 11-05-2009 |
| 20090314973 | Medical valve and method to monitor intra-abdominal pressure - An apparatus for monitoring the intra-abdominal pressure of a hospitalized patient includes a urinary catheter connected to a urine valve providing selectable communication between a discharge end of the urinary catheter and either a drain or a fluid source. Preferably, the urine valve is adapted for remote actuation and has a housing adapted to resist patient discomfort from leg-valve contact. Plumbing structure desirably maintains fluid supply and drain conduits in a substantially parallel arrangement to assist routing those conduits between a patient's legs. When the urine valve is oriented to permit communication with the fluid source, an infusion pump may be used to infuse a known quantity of fluid through the urine valve and into the patient's bladder. A pressure transducer desirably is connected in-circuit to indicate the fluid's pressure. To facilitate the infusion process, an automatic flow control device may be included in a fluid supply path and arranged to permit repetitive operation of a syringe to inject a bolus of fluid into the patient's bladder. Subsequent to a period of time in which to make a pressure measurement, preferred embodiments of the urine valve automatically return to a bladder draining position. | 12-24-2009 |
| 20100019178 | LOW PRESSURE MEASUREMENT DEVICES IN HIGH PRESSURE ENVIRONMENTS - The present invention presents various novel approaches to solving the problems inherent in measuring biological pressures in high pressure systems. Thus, to protect a pressure transducer exposed to fluid flows at higher pressures than its overpressure rating, a novel valve is used that closes a protected leg in which the transducer is located. The various exemplary embodiments of such valves each have a high pressure input, one or more low pressure inputs, and an output. In operation, when a high pressure fluid flow occurs at a high pressure input, such valves automatically close the low pressure inputs. Alternatively, a novel transducer system is presented, which automatically limits the effective pressure sensed by a transducer to a certain maximum. | 01-28-2010 |
| 20100090137 | FLOW RATE CONTROL DEVICE - The flow rate control device is equipped with a pilot regulator that applies operating pressure by using air supplied to one surface of a diaphragm provided in the regulator and adjusts the flow rate of a chemical liquid contacting the opposite surface, and with an electropneumatic regulator that controls supply and discharge of air to adjust the operating pressure for the pilot regulator. The flow rate control device is equipped with an air passage that connects and passes air between the pilot regulator and electropneumatic regulator, and an orifice that enables adjustment of operating pressure by the electropneumatic regulator while discharging air from the air passage. | 04-15-2010 |
| 20100127195 | IMPULSE ACTUATED VALVE - A valve for controlling flow of pressurized fluid from a confined area that is operable to relieve an overpressure condition as well as to allow flow of fluid in response to a pressure relief command. The valve including a valve body with a fluid passage therethrough, a reverse buckling rupture disc in the valve body in normally blocking relationship to the flow of fluid through the passage, and a selectively actuatable device carried by the valve body adjacent the convex surface. The actuatable device is operable to disrupt, without puncturing, the disc so as to initiate reversal and rupture of the disc and to permit flow of the pressurized fluid through the passage. | 05-27-2010 |
| 20100171054 | MICROMECHANICAL SLOW ACTING VALVE SYSTEM - The present invention provides an integrated microvalve system ( | 07-08-2010 |
| 20100187452 | MICROFLUIDIC DISPENSING ASSEMBLY - A microfluidic dispensing system may include diaphragm pumps that may be used for aspirating in corresponding ingredients via a nozzle or a tip from supply sources. Tips may be placed in contact with ingredient supply sources, and through repeated actuation of the diaphragm pumps, desired volumes of ingredients are aspirated into the tips. In some cases, an air plug is aspirated into the tips before an ingredient. Once the desired volume of each ingredient is reached within each tip, the ingredients are dispensed from the tips through repeated actuation of corresponding diaphragm pumps. | 07-29-2010 |
| 20100200784 | Bellowphragm actuated fluid control swing valve - A bellowphragm actuated fluid control swing valve includes: a fluid-tight body having an inlet for the fluid, a seat around the inlet, an outlet for the fluid, and a hinge, the body conducting the fluid from the inlet to the outlet; a fluid-tight chamber adapted to be pressurized with the fluid, the chamber generally enclosed by the body; a first surface of the chamber, foldably pleated so as to extend in response to the chamber being pressurized; second surface of the chamber, rotatably attached to the hinge, so that, when the first surface extends, the second surface rotates about the hinge; a disc on the second surface of the chamber that mates with the seat; and a generally non-folding cover attached to the first surface of the chamber so that the cover and first surface cooperate to form the chamber and make the chamber fluid-tight. | 08-12-2010 |
| 20120112102 | PRESSURIZABLE SEALING ELEMENT - The invention relates to a sealing element ( | 05-10-2012 |
| 20120161044 | VACUUM VALVE - A vacuum valve installed on an opening of a sealed container includes an air-resistance membrane, a valve and at least one airflow passage. The valve is latched on the opening. The airflow passage runs through the valve and communicates with the sealed container. The air-resistance membrane is mounted onto the valve and has an annular flange to surround and seal the airflow passage. The protrusive annular flange is deformable to form an airtight structure to maintain a vacuum condition in the sealed container for a prolonged duration to meet use requirements. | 06-28-2012 |
| 20120181460 | Valves with Hydraulic Actuation System - This invention provides a device comprising at least one diaphragm valve actuated by a hydraulic actuation system. The device comprises a fluidics layer, an actuation layer and an elastic layer sandwiched between the fluidics layer and the actuation layer. The diaphragm valve comprises: a valve inlet and valve outlet comprised in the fluidics layer; a valve seat; a diaphragm comprised in the elastic layer; and an actuator. The diaphragm is actuatable to move into contact or out of contact with the valve seat, thereby closing or opening the diaphragm valve. The actuator comprises: a hydraulic conduit; a translator; and an incompressible fluid contained within the hydraulic conduit, wherein the incompressible fluid communicates with the translator and with the diaphragm. Translation of the translator transmits pressure through the incompressible fluid to actuate the diaphragm. The invention also provides systems including elements to operate the device and methods of using the device. | 07-19-2012 |
| 20140054477 | AXIAL FLUID VALVES WITH ANNULAR FLOW CONTROL MEMBERS - Axial fluid valves having annular flow control members are described herein. An example axial fluid valve described herein includes an axial flow valve body defining a passageway between an inlet and an outlet. The example axial fluid valve includes a sleeve slidably received by an inner surface of the axial flow valve body and movable along an axis substantially parallel to a longitudinal axis of the passageway. The example axial fluid valve includes a linkage or a gear operatively connected to the sleeve to move the sleeve to vary a flow of fluid between the inlet and the outlet through the sleeve. | 02-27-2014 |
| 20140077108 | FLUID CONTROL VALVE SYSTEM AND METHODS - A diaphragm-type control valve having a diaphragm and a valve body is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. The diaphragm element and a port in the body together form an intermediate chamber that eliminates the need for a check-valve downstream of the valve. In one preferred embodiment, an inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member defining a groove in communication with the port. A diaphragm member having upper and lower surfaces is disposed within the chamber. The lower surface preferably includes a pair of spaced apart elongated members defining a channel therebetween. The diaphragm member engages the seat member placing the channel in communication with the groove to define an air seat in communication with the port. | 03-20-2014 |
| 20140197339 | LIFTING GATE POLYDIMETHYLSILOXANE MICROVALVES AND PUMPS FOR MICROFLUIDIC CONTROL - The present disclosure relates to method, system for microfluidic control. One or more embodiments of the disclosure relate to pneumatically actuated “lifting gate” microvalves and pumps. In some embodiments, a microfluidic control module is provided, which comprises a plurality of pneumatic channels and a plurality of lifting gate valves configured to be detachably affixed to a substrate. The plurality of lifting gate valves are aligned with at least one fluidic channel on the substrate when affixed to the substrate. Each of the valves comprises: a pneumatic layer, a fluidic layer, and a pneumatic displacement chamber between the pneumatic layer and the fluidic layer. The fluidic layer has a first side facing the pneumatic layer and a second side facing away from the pneumatic layer, wherein the second side has a protruding gate configured to obstruct a flow of the fluidic channel when the fluidic layer is at a resting state. | 07-17-2014 |
| 20140203198 | BACK PRESSURE REGULATOR WITH FLOATING SEAL SUPPORT - A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface. | 07-24-2014 |
| 20140346378 | MICROFLUIDIC VALVE MODULE AND SYSTEM FOR IMPLEMENTATION - An improved microfluidic system with an improved microfluidic valve module is disclosed. The microfluidic system includes a microfluidic chip and one or more valve modules. The microfluidic chip has microfluidic channels and one or more cavities formed in the chip, each of the one or more cavities designed to receive one of the one or more valve modules. Each of the one or more valve modules includes a first layer, a control layer and one or more second layers. The first layer includes a deformable material. The control layer has a microfluidic control chamber formed in a portion of it. The control layer is also located adjoining the first layer and the deformable material of the first layer forms a deformable surface of the control chamber. The one or more second layers include an input microfluidic channel and an output microfluidic channel. The input microfluidic channel and the output microfluidic channel are fluidically coupled to the microfluidic control chamber, and fluid flow through the input microfluidic channel, the microfluidic control chamber and the output microfluidic channel is controlled in response to a force deforming the deformable material of the first layer at least a predetermined amount. | 11-27-2014 |
| 20150053874 | PISTON-FORMAT WORKING-FLUID-PRESSURE ACTUATOR AND CONTROL VALVE - [Problem] To provide a piston-format working-fluid-pressure actuator capable of commonly using components when the piston-format working-fluid-pressure actuator is used for a reverse action or a normal action and decreasing a length dimension, in the forward/backward movement direction of the output shaft and to provide a control valve using the piston-format working-fluid-pressure actuator and a valve member. | 02-26-2015 |
| 20160146369 | PRESSURE MODULATOR - An apparatus, for controlling signal passage, includes a first passageway for a first fluid, a second passageway for a second fluid, and an interposed chamber. A first, movable diaphragm at a first chamber junction and a second, movable diaphragm at a second chamber junction, with a third fluid bound there between and interposed between the first and second passageways. A device varies a volume of the third fluid bound between the diaphragms and thus moves the diaphragms. The diaphragms each have at least one position that permits passage of a pressure signal between the first fluid in the first passageway and the second fluid in the second passageway through the third fluid bound between the diaphragms. The diaphragms each have at least one position that prohibits passage of a pressure signal. | 05-26-2016 |
| 20160375693 | METHOD FOR MANUFACTURING VALVE UNIT, AND VALVE UNIT - A method for manufacturing a valve unit includes fixing a first flow channel member and a flexible member to one another, the first flow channel member including a first surface, a second surface and a through-hole passing through the first surface and the second surface, in a manner in which the flexible member is supported by a fixing member and the through-hole is covered at the first surface side thereof by the flexible member; and fixing the first flow channel member and a second flow channel member, the second flow channel member including a hole through which a valve body passes, in a manner in which the through-hole is in communication with the hole at the second surface side of the through-hole, the valve body configured to open and close a flow channel in communication with the through-hole according to displacement of the flexible member. | 12-29-2016 |
| 20220136618 | PASSIVE MICROFLUIDIC VALVES - A passive microfluidic valve includes a first manifold portion having a first chamber; a first inlet fluidly coupled to the first chamber; and a second inlet. The valve also includes a second manifold portion in fluid communication with the first chamber via a channel. The second manifold portion includes a second chamber fluidly coupled to the first chamber and the second inlet. The valve further includes a flexible membrane disposed between the first manifold portion and the second manifold portion and separating the first chamber and the second chamber, the flexible membrane configured to modulate a flow rate of a media flowing between the first inlet and the second inlet in either direction in response to pressure of the media flow. | 05-05-2022 |
| 251610200 | Coaxial actuator, seat and valve | 8 |
| 20100243928 | MODULAR GAS VALVE ARRANGEMENT - A modular gas valve arrangement including a housing that has a valve chamber having a gas inlet and a gas outlet and a valve mechanism disposed in the chamber between the inlet and the outlet to control the flow of gas. An interchangeable valve control module is mounted to the housing and has a valve actuator that moves the valve mechanism to control the position of the valve mechanism to thereby control the flow of gas. A diaphragm seal is disposed between the control module and the valve mechanism to seal the valve chamber from the control module. A diaphragm seal is connected to the valve mechanism and acts to retract the valve mechanism under pressure of gas within the valve chamber. | 09-30-2010 |
| 20140264104 | Fluid Control Valve System and Methods - A diaphragm-type control valve having a valve body holding a diaphragm and a depression member is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member. The depression member biases the diaphragm to a seated position within the valve. | 09-18-2014 |
| 20150021502 | MICROFLUIDIC DEVICES WITH MECHANICALLY-SEALED DIAPHRAGM VALVES - This invention provides a fluidic device comprising a diaphragm valve having a fluidics layer, an actuation layer and an elastic layer between the fluidics layer and the actuation layer, the elastic layer having a diaphragm that is mechanically sealed against the fluidics layer and the actuation layer by a sealing ring in the actuation layer. | 01-22-2015 |
| 20160186886 | Diaphragm Actuator for a Control Valve - A diaphragm actuator ( | 06-30-2016 |
| 20180023726 | FLOW RATE ADJUSTING DEVICE | 01-25-2018 |
| 251610400 | Coaxial spring biasing means between valve and actuator | 2 |
| 20130313451 | DIAPHRAGM ACTUATOR - A valve actuator apparatus having improved diaphragm retention to protect against tensile loading and ability to adjust the top shaft diameter within said actuator. | 11-28-2013 |
| 20140014859 | ACTUATOR APPARATUS HAVING INTERNAL PASSAGEWAYS - Actuator apparatus having internal passageways are disclosed. An example apparatus includes an actuator casing having a load apparatus to define an upper pressure chamber and a lower pressure chamber. The upper pressure chamber is opposite the lower pressure chamber. A yoke is to couple to the actuator casing to a fluid valve. An internal passageway is formed in a body of the yoke to fluidly couple a control fluid to at least one of the first or the lower pressure chamber. A fluid connector assembly is positioned in the actuator casing to fluidly couple the internal passageway to the upper pressure chamber. The load apparatus is between the internal passageway of the yoke and the upper pressure chamber. | 01-16-2014 |
| 251610500 | Actuator wall between valve and coaxial spring biasing means | 1 |
| 20080237512 | VALVE APPARATUS - A valve apparatus includes a body, a sleeve and a shaft. The sleeve is connected to the body by screwing. The shaft is telescoped into the sleeve. The body and the sleeve both have at least one locking portion corresponding to each other. The valve apparatus uses locking portions disposed at the junction of the body and the sleeve to lock their relative position, thereby improving the reliability of the connection. | 10-02-2008 |
