Abstract: A water temperature regulating valve for limiting the maximum temperature of the water output. A temperature limiting cap is installed above the cartridge of the regulating valve. The limiting cap restricts the rotation of a control rod device pivotally installed in the barrel portion of the valve. When the limiting temperature is to be reset, the user removes the cap, rotates it to the desired position, and reinstalls the cap.

Abstract: A fast-acting valve includes a valve body and a spool slidably mounted within the valve body between first and second limit positions. Both the spool and the valve body have a flow passage which come into alignment with the valve spool at a position intermediate the first and second limit positions and spaced therefrom by a given distance. That given distance allows the spool member to accelerate in travel from the first and second limit positions to the valve open position so that the opening of the valve (and closing) occurs quite quickly. Reciprocating movement of the valve spool relative to the valve body can be provided by springs mounted in opposing ends of the valve body bore in cooperation with solenoids mounted on opposing sides of the valve body. The fast-acting valve may be modified into the form of poppet valve or a cartridge valve.

Abstract: An inflation nozzle structure of an infatable envelope. The inflatable envelope is formed by two envelope membranes the peripheries of which are adhered to each other. The inner membranes are adhered to an edge of the envelope membranes and inward extend from the edge. The two inner membranes are adhered to each other to define an air passage serving as the inflation nozzle. An isolating membrane is sandwiched between the inner membranes near an outer opening of the air passage. Two faces of the isolating membrane are formed by two kinds of membranes with different melting points. When thermally pressed, one face with lower melting point of the isolating membrane is thermally adhered to inner wall of the air passage, while the other face with higher melting point is not adhered. Therefore, when thermally pressing and forming the inflatable envelope and the inflation nozzle, the operation can be continued and speeded without complicated processing procedure.

Abstract: A tire valve stem having an integral pair of O-rings over which a pressure gauge or other device can be mounted by sliding a mating collar provided on the device over the O-rings. The O-rings provide an air-tight seal against the collar, and allow the device to rotate relative to the stem, either during or after mounting, to position the device anywhere within a 360° arc around the stem. The O-rings are located on either side of an orifice which extends through the valve stem, beneath the valve. Air passes from the pressurized valve stem, through the orifice, into an air-tight region between the O-rings, valve stem and collar. A port in the collar allows air to pass through the collar from the air-tight region into the device.

Abstract: An oversized air valve for use with inflatable devices typically in an above-the-ground swimming pool or an inflatable mattress is disclosed. In its most fundamental embodiment, the oversized air valve for use with inflatable devices includes a construction having an outer housing and a base flange connected to the outer housing for being secured to an inflatable device. A cylindrical passageway is formed through the outer housing for carrying pressurized air. A cap attached to the cylindrical passageway enables the air valve to be sealed against air leakage. Finally, a removable rigid member is insertable into the cylindrical passageway for preventing deformation to the air valve. The removable rigid member is force-fitted into the cylindrical passageway and is of a length sufficient to displace a back pressure flap hinged to the bottom of the cylindrical passageway.

Abstract: A pneumatic control apparatus and method controls gas pressure inside a tire (40) mounted on a wheel (32) which rotates about the centerline of an axle (30). A bleeder valve (28) is mounted on a body coaxially aligned with the axle centerline and is in fluid connection through passages (14, 18) in the billet and tubing (24) with a pneumatic fitting (23) on the tire. The bleeder valve allows gas inside the tire to be relieved to the atmosphere when the gas is above a set pressure. The coaxial alignment of the bleeder valve with the axle centerline permits the bleeder valve to relieve gas pressure unaffected by centrifugal forces.

Abstract: The present invention provides a ball cock for a railway vehicle which comprises a main body possessing a primary-side opening and a secondary-side opening which face one another and an air exhaust aperture which is formed between these openings. Such ball cock further incudes a ball-shaped valve body which is rotatably provided inside such main body and in which there is formed a communication aperture which connects the primary side opening and the secondary-side opening and a side aperture which, consequent to its rotation, connects the air exhaust aperture and either the primary-side or secondary-side opening. There is formed in the main body's air exhaust aperture a pipe connection to which can be connected a restrictor. In another embodiment an extension pipe is connected to such pipe connection in such air exhaust aperture.

Abstract: A control valve which is useful for controlling devices without the use of direct electrical power. The control valve is configured such that it allows for the control of flowable media, such as water, hydraulic fluids, and it can also be used with gases, including air, and the like.

Abstract: A rotary valve assembly includes a housing for positioning on an engine of the piston and cylinder type. The housing includes an intake passage for conducting a working fluid to the cylinder and an exhaust passage for conducting the working fluid from the cylinder. The housing has an internal cavity which intercepts the intake and exhaust passages, which cavity contains a rotary valve member having a window. The window is so positioned that when the member is rotated, it opens and closes the intake and exhaust passages in a periodic manner. The valve assembly may also include a throttle member mounted in the housing parallel to the rotary valve member. The throttle member has a hole which may be positioned opposite the intake passage.

Abstract: Medical intravenous administration connectors according to a first embodiment include a first coupling member having a female luer, a valve member having a substantially rigid stem and a substantially resilient body with a sealing surface, and a second coupling member having a fluid coupling extending from one end and an internal valve member support. The coupling members are structured to couple to each other with the valve member being biased to a closed position. When assembled, the valve stem extends into the female luer, and the valve body biases the sealing surface against an annular ring in the first coupling member thereby blocking fluid communication. Vanes are provided in the second coupling member on which the resilient body of the valve sits, with the vanes acting as a centering mechanism for the valve. The valve is opened for fluid flow through the assembly by coupling a male luer to the female luer of the assembly.

Abstract: A dual check valve backflow prevention apparatus of lightweight, compact construction which provides low flow losses and which maintains a small positive pressure differential under static flow conditions via use of a magnetic valve closure mechanism. The apparatus comprises a main valve housing which contains two check valve assemblies. Each check valve assembly has a clapper valve which uses a low friction magnetic pull closure force and drip tight seals in the forward flow direction for maintaining a small positive pressure differential under static conditions. The magnetic bias for the closure force is preferably located in the center of the flow stream. An additional closure force may be provided by a spring or gravity assistance.

Abstract: The valve operating device comprises in a housing a valve operating member, which is movable in a compartment in the housing and at its underside has a generally cone-shaped recess, and an operating rod, which is in engagement with the recess with one end and with the other end is in contact with a valve actuating pin of a vehicle air valve, on which the device is mounted. It has a locking sleeve axially movable in the housing and being arranged coaxially with the operating rod and has an internal thread for attachment to the air valve and with an abutment for engagement with a pivotable locking pin of a lock in the housing.

Abstract: The invention provides an electrically activated valve assembly for control of a fluid. It has a diaphragm with a control chamber on one side and a flow barrier on the second side. Portions of a first flow passage and a second flow passage are on the second side of the diaphragm, with the flow barrier between them. When the control chamber has a relatively high pressure, the diaphragm is pressed against the flow barrier, isolating the first flow passage from the second flow passage. When the control chamber has a relatively low pressure, the diaphragm moves away from the flow barrier, so flow may occur between the first flow passage and the second flow passage. The position of the diaphragm is determined by pressure in the control chamber so the pressure in the control chamber controls the fluid flow connection between the first flow passage and the second flow passage.

Abstract: The present invention is related to air pressure valve stems and gauges. More particularly, this invention relates particularly to tire stem valves possessing a built-in calibrated air pressure regulator and an optional integrated air pressure indicator.

Abstract: A relief valve, including a case having an inner bore, and an opening defining an outlet; a valve seat adjacent to a forward end of the case, the valve seat defining an inlet, a plunger slidably disposed within the case and pressed forward by a spring to shut off fluid communication between the inlet and the outlet, a piston slidably disposed within the case, and slidably receiving the plunger, the piston being configured for pushing forward a rear end of the spring, and which piston moves forward with the increase in the pressure at the inlet to compress the spring, thereby regulating a relief pressure, wherein the piston further comprises a first sliding portion configured for sliding with liquidtightness in the inner bore of case, and a sliding bore formed along a central axis of the piston, a rear portion of the plunger slidably inserted and fitted in the sliding bore formed along a central axis of the piston, and the plunger further comprising a through hole configured for feeding a pressurized liquid fr

Abstract: The invention relates to a valve with a housing, a valve seat and a setting member which is provided in the housing and has a seal, the sealing surface of which comes into contact with the valve seat in the closed position of the setting member, and wherein during the adjustment the valve seat is retained on the housing so as to be displaceable relative to the sealing surface. During the adjustment the valve seat is also movable in an angular range in such a way that the valve seat rests flat on the sealing surface in the closed position.

Abstract: A monolithic, bi-directional micro device formed on a support base, for example a silicon wafer, including at least one input and output flow channels for flow of fluid. The actuator portion includes electrically conducting upper lower diaphragms (preferably formed from doped polycrystalline silicon) formed about a central electrode and mounted on the base. The diaphragms move under electrostatic force between first and second positions upon application of voltage. The upper and lower diaphragms form a sealed, enclosed cavity separated from the channels. The diaphragms are connected for mechanically transmitting electrostatically induced force from one diaphragm to the other, preferably by one or more posts passing through at least one hole formed in the central electrode. The lower diaphragm and the support base are maintained at the same electrical potential. The device is formed by depositing and patterning the electrodes and forming spaces between the electrodes by etching of sacrificial layers.

Abstract: A valve cap for an installation having interior air pressure. The cap includes an upper sleeve portion with a central recess for receiving a pair of pressure indicating inserts. The inserts are received in the recess, and each displays one digit of a desired inflation pressure on its upper surface. The inserts also have a formation thereon which enable them to be snapped snugly in place within the recess. Other embodiments include a tray nesting with the inserts. A single insert is also taught.

Abstract: An improved snap action valve construction is disclosed in which stiffening ribs are provided on the snap blade in an area adjacent the valve member carried thereby to aid in resisting flexing of the blade in this area. Additionally, a rib may be provided on the snap blade to provide a pivotable line contact between the snap blade and associated valve member to ensure better sealing engagement with the valve seat. In one embodiment stiffening ribs are also provided on a compensator blade in the area of attachment to the active blade to provide increased resistance to flexing in this area due to heat transfer from the active blade. In another embodiment, the compensator blade is secured to the snap blade in spaced relationship to the active blade so as to limit heat transfer therebetween.

Abstract: The valve has a seat valve with a hollow cone-shaped valve seat (28) and a closing member in the form of a segment of a ball. The valve seat is centrally fed by an influx bore that communicates with a pressure fluid inlet. A tappet that has the closing member is engaged by a magnet armature that acts on the seat valve in the closing direction and by a restoring spring that acts on it in the opening direction. The valve, which is embodied as an on-off valve, can be controlled in stable intermediary positions because of the following measures: the sealing diameter of the valve seat has at least 1.3 times the diameter of the influx bore; the cone angle of the valve seat is at most 110.degree.