Abstract: A fuel bowl for a carburetor system may include a fuel container and a fuel flow assembly that is removeably couplable thereto. The fuel container may include a base, a pair of sidewalls extending upwardly from the base, a rear wall extending upwardly from the base, a top overlying the pair of sidewalls and the rear wall, and a cavity defined by the pair of sidewalls and the rear wall. The fuel flow assembly may include a base, a pair of sidewalls extending upwardly from the base, a rear wall extending upwardly from the base, and a top overlying the pair of sidewalls and the rear wall.

Abstract: An apparatus for preventing backflow of a fill valve in a water toilet. The apparatus includes a fill valve for permitting and stopping supply of washing water from a hydrant into a water tank, a fixing section fixing the fill valve to an overflow pipe, a float having a packing for opening or closing an opening/closing hole of the fill valve depending on a level of water contained in the water tank, and a backflow-preventing section disposed inside the fill valve. The backflow-preventing section permits washing water to be supplied from the hydrant into the water tank, and prevents washing water from flowing back toward the hydrant. The backflow-preventing section includes a backflow-preventing member mounted to a supply pipe of the fill valve, and an operation control valve seated on a fitting protrusion of the fill valve to control an operation of the backflow-preventing member.

Abstract: A pressure regulated valve is provided for a mechanical returnless fuel system for an automotive vehicle that includes a fuel pump for supplying fuel from a fuel supply to an engine. The pressure regulating valve includes a conduit in fluid communication with the pump outlet. The valve includes a valve seat and a valve body having a frustoconical seal surface. A spring biases the valve body to close the valve body against the valve seat. During operation, increased fuel pressure from the pump opens the valve body to discharge excess fuel to the fuel supply.

Abstract: The present invention discloses a valve which utilises an imbalance of flow induced pressure forces to keep the valve open or closed. The valve has an interior cavity (15) into which an opposite and aligned inlet (12) and outlet (13) open. A bulbous body (16) is located within the cavity and is reciprocally mounted on a spindle (17) which passes through the outlet. Movement of the body increases the flow area at one end of the body and decreases the flow area at the other end of the body. In accordance with Bernoulli's theory this changes the pressures acting on the body (16) giving rise to a net force on the body. A cistern inlet valve (111,211) and cistern (19) are also disclosed.

Abstract: A valve to monitor the level of fluid in an above ground storage tank while the tank is being filled, cutoff the flow of fluid when the tank is in a full condition, and as long as the filling pressure is on the valve the valve will remain cutoff even if the fluid level in the tank has lowered. A relief valve to drain the fluid remaining in the filling hose after the filling pressure is off. A sight level indicator to visually show that the tank is in a filled condition. A monitoring node to be used with or without the mechanical cutoff valve in a totally controlled application where the filling person is not responsible for shutting off the filling tank truck, with two switches, one to alert that the tank is near a filled condition and the second to alert that the tank is in a filled condition.

Abstract: A liquid fuel shut-off valve for insertion through the feed pipe opening and mounting inside a fuel tank including, in combination, a valve body having an inlet and an outlet joined by a first bore aligned axially with the feed pipe through which the fuel is fed to fill the tank, a valve spool rotatably mounted in a cross-bore formed in the valve body between the inlet and the outlet and attached to a float extending outward from the valve body that is responsive to the level of liquid in the tank, and a valve shut-off formed in the spool including a second bore formed transverse thereto for passing fuel between the inlet and the outlet, and a relief opening formed in the trailing edge of the wall of the second bore allowing progressive rotation of the second bore from a first position in full hydraulic alignment with the first bore to a second position in full hydraulic closure with the first bore free of a countervailing hydraulic turning moment developed by the flow of fuel there through.

Abstract: A drain valve including a housing engaged on a base, compressed air may flow into the housing via an inlet of the base, a casing disposed in the upper portion of the housing, a piston slidably engaged in the casing, a rod extended downward from the piston into an outlet of the base for blocking the outlet, a puncture formed in the upper portion of the casing, a plug disposed for blocking the aperture and can be opened by a float. The condensate is accumulated within the lower portion of the housing. Most of the parts are disposed within the upper portion of the housing.

Abstract: An automatic air release valve which is viable to operate at any pressure. The air release valve includes a first orifice for exhausting air and a second orifice which is exposed to atmosphere but is always sealed. The second orifice exposes a vertically movable stem within the valve to forces which are equal and opposite to a suction force which tends to hold the valve stem in sealing relation to the first, air exhaust orifice. Because of the equalization of pressures made possible by the provision of first and second orifices, movement of the valving mechanism within the valve housing downwardly as the liquid level goes down causes the air vent orifice to open irrespective of the pressure within the valve.

Abstract: The present invention is directed to a hydraulically balanced ballcock (10). A unique valve element (60) is translationally slidable within a valve housing (22) provided in the body (11) of the ballcock (10). A washer (74) received on the head (70) of the piston (61) in the valve element (60) moves in and out of engagement with a valve seat (85) presented from the valve housing (22) to effect closure and opening of the ballcock (10). A bore (95) extends through the piston (61) and stem portion (62) of the valve element (60) to communicate with a control chamber (125). Radial orifices (98 to 101) through a nozzle (73) that extends forwardly of the piston head (70) and through the washer (74) are located to communicate the pressure resulting from the venturi effect of fluid flow between the washer (74) and the seat (85) to the control chamber (15) by virtue of the bore (95).

Abstract: A vent valve for venting fuel and other such tanks includes a float having a valve closure poppet for opening and closing the valve at a predetermined liquid level in the tank. The valve also has a bellows actuator which relieves excessive internal tank pressures by holding the closure poppet open in opposition to buoyant forces on the float when the excessive pressures are encountered. The bellows actuator and the valve poppet are self-compensating since higher internal tank pressures cause the actuator to increase the valve opening for greater pressure relief.

Abstract: The electronic weft stop motion is designed for monitoring the weft thread in a last phase immediately following the weft insertion into the weaving shed when a thread tensioning device located on the picking side of the machine laterally deflects the weft or filling thread and thus holds it tensioned. A tactile thread sensor is arranged in the region of the lateral deflection of the weft thread in such a manner that the thread sensor goes free from the weft thread in the undeflected condition thereof, however is frictionally contacted by the weft thread when the latter is being laterally deflected.

Abstract: A liquid level control valve, more particularly for use with air separation means and having a suction chamber communicating with a source of vacuum, is disclosed. A port in the wall of the suction chamber is opened and closed by a float-controlled valve which has the center of a flexible diaphragm fixely connected thereto and the periphery of the diaphragm sealingly engaged around the periphery of an aperture in the suction chamber, the arrangement providing a balanced action.

Abstract: A T-shaped pipe whose base extends through a sidewall of a steam trap housing terminates internally of the housing in open ended upper and lower vertical arms. The lower arm is closed off by an axially movable valve disc mounted to a valve actuator rod extending axially through the arms and coupled at its upper end to a pressure balancing plate sealably connected at its periphery by a non-ferrous metal bellows to the upper end of the T-pipe arm. A float ball fixed to a float arm is pivotably coupled at the opposite end of the arm to the valve actuator rod and to the T-pipe with the pressure on balancing plate balancing the pressures acting on the movable valve disc.