Abstract: A tire pressure indicator is mounted onto the fill stem of a tire and provides a window for indicating if the tire has adequate pressure or not. The indicator show adequate, marginal and underinflated conditions by color bands opposite the window. The pressure indicator may be permanently mounted onto the tire and used to fill the tire and maintain pressure in the tire. As the tire is filled the indicator moves from one color band to the next until the indicator shows that adequate pressure has been attained whereupon the hose may be disconnected.

Abstract: An air pump nozzle has a receiving compartment with an open end where a handle is pivoted. The receiving compartment is provided at other end thereof with a holding mouth involuting a large diametric end of fish-eye through hole of an elastic holding member which is pressed against by a press member having a receiving hole in which a pushing member and a valve urging member are disposed. In operation, the inflation valve of the U.S. type is received in the through hole of the holding member. The handle is swiveled to force the pushing member to actuate the press member to press the holding member to deform so as to hold securely the inflation valve. The inflation valve is opened up by the valve urging rod which is pushed by the pushing member. The inflation valve of the French type passes the holding member to push the valve urging rod to a stop point. The holding member is deformed to hold securely the inflation valve which is opened up by the valve urging rod which is pushed by the pushing member.

Abstract: A theft resistant valve cap including a liner adapted for threaded engagement with a standard pneumatic tire stem valve, a sleeve rotatably mounted with the liner to shroud it and an interlocking feature to selectively prevent axial displacement between the liner and the sleeve. The interlocking feature includes a screw threaded into an aperture in the sleeve, or other coupling device, and an annular channel on the liner, positioned to receive the screw. The annular channel has an upper surface, a lower surface and an inner surface disposed between the upper and lower surfaces. The screw is moved so that it extends into the channel resting proximate to the upper surface, but clear of both said lower and inner surfaces. The screw can be removed after the valve cap has been installed. In this fashion, the liner and the sleeve are in a fixed axial position with respect to each other; however, the rotatability of the sleeve with respect to the liner is maintained, preventing removal of the liner from the stem.

Abstract: A valve coupler for a quick inflation device includes a sleeve having a longitudinal passage. A sealing member is mounted in a first end of the sleeve. The first end of the sleeve further includes a shoulder formed on an outer periphery thereof. A first jacket is mounted around the first end of the sleeve. The first jacket includes a first end bearing against the shoulder of the sleeve. The first jacket further includes a second end extended beyond the first end of the sleeve. A second jacket includes outer threading on an end thereof for engaging with inner threading of the first jacket. The inner threading of the first jacket and the outer threading of the second jacket are fixed together. The end of the second jacket includes an end face that encloses the sealing member. The sleeve is not moved when the valve coupler is engaged with a tire valve for inflation, thereby preventing damage to the sealing member.

Abstract: Apparatus for controlling the flow of fluid includes a gravity sensitive valve for receiving fluid from a fluid flow passageway and a pressure activated valve located downstream from the gravity sensitive valve. The gravity sensitive valve interrupts flow of fluid when the apparatus is not in use to prevent inadvertent opening of the pressure activated valve.

Abstract: A pressure relief valve assembly 10 including a generally rectangular member or housing 12, four generally flat and rectangular “flaps” or movable members 14, 16, 18, and 20, and eight substantially identical fastening members 24-34. Members 14-20 are pivotal along respective axes 78-84 which are each disposed at an angle 86 with respect to the longitudinal axis 60 of housing 12, and which allow assembly 10 to be operatively disposed in multiple positions and orientations.

Abstract: An electronic faucet having a spout, a electronically actuated valve, and a microprocessor-based control circuit for operating the valve to enable or disable water flow through the spout. The microprocessor has a control program which includes a calibration routine that uses an infra-red sensor to determine an adjustable setpoint indicative of the signal received from the sensor in the absence of an object in front of the faucet. The microprocessor switches the valve from its closed state to its open state when the signal from the sensor either increases above the setpoint by a selected amount or decreases below the setpoint by a selected amount. This provides a window about the setpoint within which differences between the setpoint and the signal do not result in opening of the valve. Object detection is accomplished using a tracking routine that adjusts the setpoint in an attempt to track the sensor signal.

Abstract: A universal coupler for a self aligning linear actuator for a valve assembly. The self aligning linear actuator utilizes a drive screw or other threaded drive means to drive a plunger for a throttle valve. The drive screw rotates within a frame while a threaded collar or ball screw coupled to a drive coupler drives the plunger parallel to the drive screw. The universal coupler relieves any bending strain induced by misalignment between the drive screw and the plunger by allowing pivotal movement of the drive coupler relative to the drive screw.

Abstract: A rotary slide valve (1) for power steering in motor vehicles contains a rotary slide (2), which is non-rotatably connected to a valve inlet member (4). The control bushing (3) is non-rotatably connected to a valve outlet member (5). The two valve elements are disposed so that they can move coaxially inside each other and can be maximally rotated in relation to each other over the rotational path of a lost motion coupling. The outside of the rotary slide (2) and the inside of the control bushing have control longitudinal grooves (6, 7), which cooperate with one another in order to direct a pressure fluid to and from two working areas of a servomotor The rotary slide (2) is connected to the valve outlet member (5) by means of a torsion bar spring (9). Manufacture conditional tolerances that can lead to undesirable effects in the driving behavior are compensated for by means of a play-free suspension connection (10).

Abstract: A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system, the valve includes a T-fitting. The fitting defines a primary passage, which communicates with irrigation pipes, and a branch passage, which communicates with a riser and sprinkler assembly. A valve seat is located within a housing that couples with the fitting. The valve seat is located within the T-fitting when the valve is assembled. The location of the valve seat within the fitting allows the valve to function even when the riser and/or a portion of the housing is sheared off. A stopper selectively engages a valve seat to inhibit water flow through the branch passage when the flow rate through the branch passage exceeds the predetermined flow rate.

Abstract: A fluid flow control valve within a pop-up sprinkler arrests fluid flow through a riser of the pop-up sprinkler under abnormal flow conditions, such as when the riser is broken or a sprinkler head is removed from the riser. The riser, which is movable relative to a housing of the pop-up sprinkler, is attached to a sprinkler head which distributes water to the surrounding area. A valve seat device is disposed within the riser. A stopper is positioned within a valve passageway defined by the valve seat device. The stopper selectively engages the valve seat to inhibit water flow through the riser under abnormal flow conditions. A biasing device prevents the stopper from engaging with the valve seat under normal flow conditions. A fluid flow control valve assembly within a swing joint of an irrigation system includes a first within a first elbow fitting and a second valve within a second elbow fitting. The first and second elbow fittings are movable relative to each other and together form the swing joint.

Abstract: A valve-coupling device includes a main body having a first end engaged with a gas output end of an inflating device, a slider slidably received in a second end of the main body, an end cap mounted to the second end of the main body for enclosing the slider, and a switch member including a stem rotatably received in the main body. The stem has an operative portion outside the main body for manual operation. When the switch member is in a first position, the end cap is engageable with the valve of a first type. When the switch member is in a second position, the end cap is engageable with the valve of a second type.

Abstract: The present invention relates to a multiple-purposed air valve component for air mattress. The air valve is designed mainly for rapid injection and release of air for the air mattress. This invention can be incorporated with electric exhaust (intake) fan for rapid injection and release of air. In particular, the present invention is the first device of which the air valve can be opened and closed by winding, thereby ensures the correct motion. When it is switched to the release position, the air inside the mattress will be released rapidly to facilitate the execution of CPR. The additional function of automatic pressure release makes this device a practical and innovating one.

Abstract: The invention relates to a valve having a housing in which there is a passage having at least two spaced ports. A slide is accommodated in the passage for to and fro movements between at least two positions in one of which at least one of the ports is open and in the other of which such port is closed. A slide actuator effects movements of the slide and the slide carries a seal which effects a seal of the closed port when the slide is in the port-closing position. The seal has a sealing actuator operable separately from the slide actuator to apply a sealing force to the seal. The force applied to the seal is neutralized in response to actuation of the slide.

Abstract: An improved fluid flow valve (10) for a fluid flow control system. The flow valve (10) includes a flow-regulating assembly (40) having a housing (44) having a piston bore (15) within which is slideably disposed a piston-like member (42). The piston-like member (42) has a primary flow passage (52) and at least one secondary flow passage (54) formed therein. A first portion (42a) of the pistonlike member (42) is configured for mating with a seat (46) of the housing (44), and a resilient member (48) biases the piston-like member (42) away from the seat (46). When at least a predetermined fluid pressure differential exists, the first portion (42a) mates with the seat (46) and causes the at least one secondary flow passage (54) to be at least substantially closed such that fluid can substantially flow only through the primary flow passage (52).

Abstract: A pressure relief valve opens at a predetermined pressure of fluid flowing into the valve. It includes a body member having a passageway with an inlet and an outlet and a barrier member between the inlet and outlet that prevents fluid from flowing between the inlet and outlet. There is a port along the passageway between the inlet and the outlet, and a moveable sealing element having a closed position where said sealing element is seated in the port and an open position where the sealing element is withdrawn from the port. The port is in fluid communication with the outlet when the sealing element is moved to the open position. A disc spring engages the sealing element. This disc spring has a first position holding the sealing element in the port when the pressure of the fluid is below the predetermined pressure and a second position withdrawing the sealing element from the port when the pressure of the fluid exceeds the predetermined pressure.

Abstract: A servovalve, in particular for hydraulic power-assisted steering systems of motor vehicles, is in the form of a rotary spool valve with a rotary spool and a control bush, which coaxially surrounds the rotary spool and can be rotated against spring force relative to the rotary spool. A bearing, by which the control bush and the rotary spool are secured axially relative to one another, is integrated into the rotary spool valve.

Abstract: The present invention relates to a non return valve which is provided by welding two lines in two flat upon each other lying film surfaces, which are then folded towards each other and after that they are joined together around the outer edges except the opening channel so that over pressure is formed when the container is filled completely or partly and then the non return valve starts to operate with safe sealing. The opening channel is formed between two against each other lying sections of film material, which sections extend from the outside of the container into it and are joined together right up to the opening channel.

Abstract: A valve for use in an inflation system wherein the valve has a spring regulated piston which regulates the flow rate through the valve into the inflatable member, such that if the flow rate gets too high, the regulating piston will divert some or all of the flow out a neutral thrust over pressure relief vent, which vents outside the inflatable member. The valve also has a secondary form of overpressure relief in the form of a neutral thrust diffuser which also dumps outside of the inflatable member. Fluid is prevented from flowing out of the neutral thrust diffuser by a burst disk, but if the fluid pressure is high enough, the burst disk will burst, and the fluid will flow out of the neutral thrust diffuser.

Abstract: A two-piece check valve device comprising a rubber sealing element and a plastic carrier member. A through bore in the plastic carrier member receives the sealing element, which is formed with an annular groove in which the carrier member is removably secured. The through bore and annular groove may be correspondingly tapered to facilitate assembly and disassembly of the check valve device.