Abstract: A dental valve device is disclosed having a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a partial opening formed in the valve body and a rotatable valve sealing body adapted to be inserted into the partial opening, the rotatable valve sealing body having a bore for alignment with the lumen formed between the tip receiving end and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening, the rotatable valve sealing body having a check valve positioned in the bore.
Abstract: A dental valve device is disclosed having a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a partial opening formed in the valve body, and a rotatable valve sealing body adapted to being inserted into the partial opening, the rotatable valve sealing body having a bottom having an opening, a bore for alignment with the lumen formed between the tip receiving end and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening, the rotatable valve sealing body having a check valve positioned in the bore and the opening in the bottom.
Abstract: An anti-flooding safety device includes two connection bodies, a valve arrangement that includes a valve member, a retention member for withholding the valve member in a respective opening position, and an inner hose and an outer hose impermeable to water. The inner hose hydraulically connects the two connection bodies and extends at least in part within the outer hose so that defined between the two hoses is a gap designed to withhold inside it any possible leaking water. A connection body has a control chamber that is at least in part delimited by a movable element, and a control member is coupled to the movable element so that a displacement of the latter will cause a displacement of the control member towards a respective position of release, wherein the valve member is free to pass into its closing position. The gap is in fluid communication with the control chamber, to obtain a substantially closed volume therewith.
Abstract: Provided are apparatus and systems having a rotary valve assembly integrated with a reciprocating valve assembly to perform swing adsorption processes. The rotary valve assembly is utilized with the reciprocating valve assembly to manage the flow of streams through the system in an enhanced manner.
Abstract: A valve with a valve body in which is rotatably mounted a valve member, the valve member having therein a ball check for selectively preventing fluid flow through the valve. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
November 8, 2013
May 14, 2015
Richard C. Hughes, Melvin O. Castillo, James C. Hertenberger
Abstract: An apparatus for controlling the flow of fluid may include a main passageway for conducting the fluid and the valve which may include a rotatable valve cavity having a ball check. The rotatable valve cavity may be rotatable with respect to the main passageway to provide at least three positions including a bypass position, a closed position and a run position. The valve may include an outlet for connection to the sight glass, and the apparatus may include a bleeder valve. The apparatus may include a sight glass which may be in fluid communication with the valve.
April 17, 2010
Date of Patent:
November 19, 2013
Richard C Hughes, Melvin O Castillo, James C Hertenberger
Abstract: A bi-directional pressure relief valve for a plate fin heat exchanger including an elongated heat exchanger tube having ends and a channel for the flow of a fluid from one end of the tube to the opposite end and a bi-directional reed valve positioned within the channel. The reed valve allows fluid to flow within the channel in either direction when a pressure differential across the reed valve is sufficient to urge the reed valve to an open position, thereby enabling the heat exchanger to be used independent of the direction of fluid flow through the heat exchanger.
Abstract: A coupling assembly includes a female unit and a male unit which is removably connected with the female unit. A valve unit is located in the female unit and includes a core with two flexible disks on two ends thereof. A flange extends radially outward from a lower end of the core and is rested on a support frame in the female unit. The core extends through a through hole in a lower end of sleeve in the female unit. A plurality of paths are defined through the lower end of the sleeve so that by shifting the core to let either of two flexible disks to seal the paths in one direction, the direction of fluid flow can be controlled. The movement of the core is made by moving the sleeve.
Abstract: A oneway valve for an automatically inflatable air cushion includes a valve body having an air inlet port and an air outlet port, a valve seat mounted in the valve body and formed with a plurality of conducting holes connected to the air inlet port and the air outlet port, and a valve stem movably mounted in the air inlet port and movable to seal the conducting holes. Thus, the oneway valve prevents the air from leaking from the air cushion during the inflation process and prevents the air from entering the air cushion during the deflation process, so that the air cushion is inflated and deflated completely and exactly.
January 3, 2007
Date of Patent:
January 5, 2010
Feng Yi Outdoor Leisure Equipment Enterprise Co., Ltd
Abstract: The valve includes a supply portion, a delivery portion and an intermediate fluid chamber; a poppet member is positioned within the fluid chamber and is adapted to move within the chamber, the poppet including a conical seating surface and a rim portion, the rim portion having openings therethrough into the open interior of the poppet, allowing for forward fluid flow through the poppet. A delivery poppet seat and a supply poppet seat are defined at opposite ends of the fluid chamber. The delivery poppet seat is configured so that when the rim portion of the poppet contacts the delivery seat, fluid flow in the forward direction is permitted. The supply poppet seat is configured such that when the conical seating surface of the poppet member contacts the supply poppet seat, backflow through the valve is substantially prevented.
Abstract: A bi-directional flow-control device includes a housing defining a flow passage and first and second orifices installed in the passage, each orifice being tubular and having a seat, each seat having a plurality of circumferentially spaced flow-control channels, the seat of the second orifice being axially spaced from and facing the seat of the first orifice. A resiliently deformable diaphragm is disposed between the seats, whereby flow through the passage in a first direction urges the diaphragm against the seat of the first orifice and flow through the passage in an opposite second direction urges the diaphragm against the seat of the second orifice. The diaphragm in each case deforms into the channels in the seat to varying degrees as a function of pressure differential such that in either flow direction the flow is regulated to a substantially constant volumetric flow rate over a range of pressure differentials.
November 12, 2002
Date of Patent:
September 14, 2004
Hays Fluid Controls, division of ROMAC Industries,
Abstract: A check valve is provided having a valve body and a sealing assembly within the valve body. The sealing assembly is biased, via a biasing force, in a seated position against a valve seat adjacent or surrounding an inlet port of the valve body. The sealing assembly includes an armature that has a proximal end and a distal end, and a sealing member that is pivotally attached to the distal end of the armature at a seal pivot joint. The proximal end of the armature is pivotally attached to the inner wall surface of the valve body at a wall pivot joint. Thus, the armature is a dual-hinged armature, providing at least two degrees of freedom, one translational and one rotational, for the sealing member to be properly seated against the valve seat. Effective sealing is thus achieved despite potentially imperfect alignment between the valve seat and the sealing assembly, and also despite a non-perfectly smooth valve seat.
Abstract: A method for installing plumbing fixtures in a multi-story building having a waste stack includes a stop valve between the waste output of each fixture and the waste stack, the valve allowing the waste water to flow from the fixture toward the waste stack, but preventing flow from the waste stack back into the plumbing fixture. The valve has a cylindrical body, a lower assembly and an upper assembly, which together form a water-tight structure, with threaded outlets in each assembly. Within the body there is suspended a stop ball having a diameter larger than that of the ball seat in the upper outlet. When water attempts to back up from the waste stack in the direction of the stop valve, the ball is forced against the upper seat and blocks the water flow.
Abstract: A backflow valve for an end of a pipe includes a cylindrical body having coupling at a first end which is adapted to mate with an end of a pipe. A closure gate is pivotally mounted to the second end of the body for movement about a substantially horizontal axis between an open position permitting flow in one direction through the flow passage and a closed position blocking the flow passage to prevent a reversal of flow.
Abstract: A valve is disclosed. The valve has a housing that defines a central area and has at least two flow ports therethrough. A cover is provided that has a flapper assembly pivotally attached thereto. The cover is removably attachable to the housing in a plurality of orientations to selectively orient the flapper assembly adjacent any one of the ports such that fluid is permitted to flow into the central area of the housing through the adjacent port. The flapper assembly prevents the fluid from flowing back out of the central area through the adjacent port. The cover may have a transparent portion to permit the flapper assembly to be viewed and inspected during operation. A double seal arrangement is also disclosed.
Abstract: Disclosed is a pressure/flow rate control valve comprising a pressure-adjusting section having a valve plug for reducing the pressure of a pressure fluid flowing through a clearance between a hole and itself, a stem which is displaceable integrally with the valve plug and which is installed with a packing, and a spring member which is fastened to one end of the stem, for pressing the valve plug toward an annular projection formed on an inner wall surface of a first valve body.