Abstract: A beer foam reducing apparatus disposed for placement into the beer delivery lines between a keg and a beer serving spout to prevent pressurized carbon dioxide from entering the delivery line between the apparatus and the serving spout when a keg empties of beer. The apparatus comprises a base with a shallow receptacle disposed to receive an inverted, clear plastic container for sealed, threaded engagement. The plastic container is easily removed for cleaning or replacement and easily sealed for operation. The apparatus also comprises an inlet and outlet in the base, a float disposed for releasably sealing the outlet of the base when a keg empties, and a flow control column secured in the base and extending upwards into the inverted container. Single handed manipulation of a handle leveraged against a mounting bracket regulates operation of the flow control column, and specifically the venting of pressurized carbon dioxide and releasing of the float to begin delivery of beer through the outlet.

Abstract: A condensate trap assembly includes a monitoring device 4 which is closely coupled to, or integral with, a condensate trap 2. The monitoring device 4 includes a flow restriction 56 and a condensate receiving chamber 48 which accommodates a sensor 66. The chamber 48 communicates with an inlet passage 52 on the upstream side of the flow restriction 56 and, via a bore 50, with an outlet passage 54 on the downstream side of the flow restriction 56. The sensor 66 provides an indication of the condition of the condensate trap 2, in accordance with whether the sensor tip 68 is submerged in condensate and in accordance with the temperature of the condensate.

Abstract: A medical dye delivery system includes a medical dye container and a syringe for withdrawing the medical dye from the container and delivering the dye to a patient. A valve is disposed in the system having an inlet in flow communication with the medical dye container and an outlet in flow communication with the syringe. The valve includes a housing defining a flotation chamber with a valve seat and a flotation member disposed therein. The flotation member seals off the valve seat opening upon medical dye depletion, forcing any remaining fluid flow through a bypass channel that provides restricted flow to provide a tactile warning to the operator of the system that the medical dye container is depleted, yet allow the operator to purge remaining dye from the system.

Abstract: Minimalized energy use and operational cost are provided by the method and apparatus of this invention for liquid distribution system in which pumped liquid is charged to a pneumatically pressurized storage tank, filling it to an optimum level for subsequent distribution of incremental quantities of liquid drawn from the tank, as typical for well water systems of rural residiences. A pneumatic pressure-head of nominally constant mass is maintained in a liquid storage tank during intermittent operations of filling and of discharging liquid from the storage tank, thereby neccesitating minimal venting or charging of air for mainting constancy of pneumatic mass in the tank.

Abstract: A fuel delivery system (200) is provided for removing air from fuel delivered to a diesel engine, and includes a primary water separation filter (16), and a secondary air separation filter (18). The air separation filter (18) is located downstream from the water separation filter (16) for delivering substantially gas-free fuel to the engine at a positive pressure in a volumetric rate exceeding engine fuel demand. The air separation filter includes a vessel (58), a fuel inlet into the vessel (300), a fuel outlet (424) leading to the engine, an inlet side fuel return discharge (294), an outlet side fuel return discharge (428) leading to the fuel tank, and a filter cartridge (58) including filter element (94) presenting numerous small openings therein for permitting the passage of fuel therethrough but screening out bubbles entrapped in the fuel. As the bubbles are trapped on the element, they float upwardly for discharge through gas discharge port (294).

Abstract: A separator (10) for separating a heavier liquid from a lighter liquid is disclosed which is intended to operate between a fuel tank (12) and a fuel pump connected to the fuel outlet (24) of the separator (10). The separator includes a float (30) which is light enough to float on the heavier liquid and which is heavy enough to sink in the lighter liquid. The float controls opening and closing of a valve (44, 46) through which heavier liquid is disclosed from the separator. As heavier liquid accumulates, the float lifts to open the valve (44, 46). A plate (34) subjected to a force caused by fuel flowing into the separator through the inlet (16) prevents the float opening the valve whilst the separator is in sub-atmospheric pressure. The plate can be replaced by a diaphragm which is subject on one side to atmospheric pressure and on the other side to the pressure in the separator.

Abstract: A condensate trap for an air conditioning system includes a chamber having an upstream port coupled to the air conditioning system and a downstream port coupled to the external atmosphere, a sealing device disposed in the chamber, a lower seat member positioned in the chamber, and an upper seat member, disposed between the sealing device and upstream port. In response to a positive pressure at the upstream port, the sealing device contacts the lower seat member to prevent air from the air conditioning system from exiting to the external atmosphere. On the other hand, in response to a negative pressure at the upstream port, the sealing device contacts the upper seat member to form a seal which prevents the ingress of air from the external atmosphere into the air conditioning system. Moreover, in response to a predetermined amount of condensate accumulating in the chamber, the sealing device moves out of contact with the seat members to allow the fluid to drain from the downstream port of the chamber.

Abstract: A fob detector for use in a supply line between a pressurized beverage container and a dispenser has a vent valve whose valve head is acted upon by pressure inside the chamber of the fob detector and which is operated by a handle which is movable from a rest position to an activated position, such that upon removal of manual pressure from the handle the valve is closed automatically.

Abstract: A resilient seal for a liquid-gas accumulator of the type having a housing with a top gas port and a bottom liquid port. A valve assembly including a spring-loaded normally open poppet valve surrounded by a sleeve is positioned in the liquid port, and a device for controlling the opening and closing of the valve in response to the level of liquid in the housing is also provided within the housing. The resilient seal is positioned on top of the popper valve and comprises a first resilient seal member and a second resilient seal member. The first resilient seal member is positioned to seat on the first end of the sleeve outside of the valve seat as the valve closes thereby providing a secondary seal.

Abstract: A vertically oriented float assisted automatic driptrap mechanism having a float valve chamber defined by a body section and base is disclosed. A float is located for vertical liquid level responsive movement within the float valve chamber and reciprocates within a valve stem float guide. A diffuser is provided at the inlet of the chamber to prevent impingement of incoming fluid on the float. The valve stem guide also serves as a filter support for a filter which filters out contaminants that might interfere with the valving action of the driptrap mechanism. A valve seat having a tapered seat surface and a self-positioning valve plug movably supported by the valve stem and having a differently tapered sealing surface establish line contact sealing to ensure effective valve operation under high pressure conditions.

Abstract: An air compressor waste drain valve having an automatic drain hole and a dust collector provided respectively at the center and circumference of the inside base of the drain valve so that the moisture produced by the air compressor can be stored in the dust collecting tank of a dust collector and the dust produced by the air compressor can pass through an overflow port of a hollow cover plate. After the moisture has accumulated to a sufficient level, the water will be drained automatically through the drain hole and the accumulated dust can be drained for collection by means of opening the valve, so as to achieve the respective drainage effort for water and dust.

Abstract: A gravity flow chemigation system (10) is disclosed which generally consists of chemical supply tank (37), in which chemical (29) is contained, a supply line (37) connected to the bottom of chemical supply tank (36), and a low-level shutoff valve (11) suspended across an irrigation ditch (39) and partially below the surface of irrigation water (38). Chemical enters the valve (11) from supply line (37) through air vent tube (21) and inlet (18). The chemical (29) within supply line (37) will continue to flow through valve (11), out outlet (15) and through outlet screen (28) to mix with irrigation water (38) as long as the level of irrigation water (38) remains at a level above converging valve seat (16) of lower float valve (13). Once the level of irrigation water (38) falls below valve seat (16), lower float (17) will engage the lower converging valve seat (16) and close off the valve which will not reactivate until manually reset, even if the irrigation water level rises.

Abstract: Automatically resetting mechanical valve is used to control unwanted discharge of liquids less dense than water, principally oil, which may be present in waste water flows. The valve is closed by the sinking of a primary flow which closes a primary orifice, and the floating of a secondary float which closes a smaller secondary orifice. The primary float is less dense than water but more dense than oil. The secondary float is less dense than both oil and water. When the primary float becomes sufficiently immersed in oil, the primary float sinks and effectively closes the primary orifice in an outlet conduit. In the event of evaporation or removal of liquid from the valve, the (smaller) secondary orifice automatically opens, thereby allowing hydrostatic pressure inside and outside of the outlet conduit to equalize. Upon reintroduction of water to the device, the primary float unseats and the valve automatically re-opens.

Abstract: A system for containing oil in a containment tank received from a transformer bank for a hydroelectric power generating station. A capacitance proximity sensor is mounted at a predetermined height within the tank and is operative to sense the passage of an oil/water interface in close proximity to the sensor to generate an output control signal for controlling a solenoid operated valve for the tank to close the valve and prevent spillage of oil into the environment. Collected water can be drained from the tank to a point where the oil/water interface has been reduced to a predetermined height within the tank, thereby leaving adequate remaining oil containing capacity within the tank in the event of further oil discharge from a transformer.

Abstract: This invention relates to a free float steam trap comprises a trap which casing having an inlet port and an outlet port and a valve chest formed therein, a valve seat member attached to the lower portion of the valve chest and having a valve orifice opened through which the valve chest communicates with the outlet port, a float valve arranged in a free state in the valve chest, rising and descending in accordance with the water level in the valve chest to directly open and close the valve orifice and a means for dispersing and passing condensate flow downward, provided at a fluid inlet through which the inlet port communicates with valve chest.

Abstract: A float-type refrigerant control device meters the flow of saturated refrigerant liquid condensate to a subsequent stage from an outlet of a sump in a refrigerant condenser. A float in the form of a metal shell open at the bottom is slidably positioned on an upright, generally cylindrical standpipe which is mounted at the outlet of the sump. A metering sleeve situated within the standpipe is joined to the float for axial travel with the float. One or more metering slots penetrate the standpipe near its lower end, and these are uncovered by the sleeve as the float rises to permit the liquid to flow out through the sump outlet. A vapor injection duct supplies refrigerant vapor from a high pressure source to the float to keep the same replenished with vapor, thereby maintaining a positive buoyancy relative to the saturated refrigerant liquid condensate in the sump.

Abstract: A vent for relieving pressure in a sewage collection system for buildings characterized by a buoyant float-closure which will easily open in response to fluid pressure to permit escape of gas or liquid from the system upon the build-up in the system of minimum pressure in excess of atmospheric pressure. The float closure is mounted in a threaded plug which is adapted to replace the conventional clean-out plug on the exterior of the building.

Abstract: A combination draw valve and sending unit assembly includes a draw valve assembly and sending unit assembly. The draw valve assembly is constructed for drawing fuel from a fuel tank of a truck or other motor vehicle. The draw valve assembly includes an adapter valve and a float valve constructed for automatically closing so that no fuel can be withdrawn from the fuel tank when the fuel level in the tank is low. The sending unit assembly inlcudes a potentiometer and a magnetic contact wherein the magnetic contact is coupled to the float valve for providing an electrical signal indicative of the amount of fuel remaining in the fuel tank.

Abstract: This invention relates to a free float steam trap which comprises a trap casing having an inlet port and an outlet port and a valve chest formed therein, a valve seat member attached to the lower portion of the valve chest and having a valve orifice opened through which the valve chest communicates with the outlet port, a float valve arranged in a free state in the valve chest, rising and descending in accordance with the water level in the valve chest to directly open and close the valve orifice and a means for dispersing and passing condensate flow downward, provided at a fluid inlet through which the inlet port communicates with valve chest.

Abstract: An automatically resetting mechanical valve used to control unwanted discharge of liquids less dense than water, principally oil, which may be present in waste water flows. The valve is closed by sinking both a primary float and a secondary float, each less dense than water but more dense than the liquid whose discharge is to be stopped. The sinking primary float effectively closes an orifice in an outlet conduit upon the sinking primary float's becoming sufficiently immersed in the less dense liquid. Upon the reintroduction of water, the secondary float acts upon a lever of high mechanical advantage, which pries the primary float upward, which, in turn, allows hydraulic pressure inside and outside the conduit to equalize, thereby allowing the primary float to unseat and the valve to automatically re-open.

Abstract: An air-oil full hydraulic reservoir tank of the type used with a vehicle lift system. The tank includes a tank wall forming the tank and a discharge pipe within the tank. The discharge pipe includes an inlet tube portion, an outlet tube portion, each extending through an upper portion of the tank, and a connection, such as a connecting loop portion or a passageway in a casting, within a lower portion of the tank, that joins the lower ends of the inlet and outlet tube portions. A low oil control mechanism within the tank blocks the flow of hydraulic oil from the inlet tube portion to the outlet tube portion when the level of the oil is below a predetermined level, thereby preventing the flow of air through the outlet tube. The inlet tube may be perforated, and the low oil control mechanism may be a float within the inlet tube that rests on a valve seat to block the flow of air into the outlet tube. A connecting pipe joins the reservoir tank to a hydraulic lift cylinder, with interposed control valves.

Abstract: A condensate trap in the exhaust gas conduit of a forced draft water and space heater comprises a housing providing a chamber open at its upper end to the exhaust conduit and having a condensate outlet below the inlet and controlled by a float valve in the chamber.

Abstract: A liquid intrusion prevention and elimination device having a fully controlled output of flow, facilitating; a body having a inlet port communicating to the upper interior of an enclosed chamber, a controlled output port communicating to an output valve having a valve seat accessing the upper interior of the chamber, a discharge port communicating to a discharge valve having a valve seat accessing the lower interior of the chamber, the chamber housing a float having an attached upper float rod with a valve end compatible to the output valve valve seat passing within a plurality of upper finger members, the upper finger members having substantially tapering gaps, therebetween, the valve end being communicatable to the output valve valve seat, the float having an attached lower float rod with a valve end compatible to the discharge valve valve seat passing within a plurality of lower finger members, the lower finger members having substantially rectangular gaps, therebetween, the valve end being communicable to

Abstract: A liquid-gas accumulator having a housing with a top gas port and a bottom liquid port. A spring-loaded, normally open valve is positioned in the liquid port and a buoyant float is rigidly connected to the valve element for controlling the opening and closing of the valve in response to the liquid level in the housing. A resilient seal may be provided between the float and the valve element positioned to seat around the valve as the valve closes thereby providing a secondary seal.

Abstract: Disclosed is a valve used in the water drainage system of an aircraft having a pressurized cabin. The valve includes a housing with a water inlet and outlet and in which a float is mounted by a spring. The float includes a stopper element adapted to engage the water outlet in the housing. The water inlet is in communication with the cabin pressure and the water being discharged and the outlet is in communication with atmospheric pressure outside the aircraft. The spring normally biases the float so that the stopper element is away from the water outlet when the plane is on the ground. As the plane gains altitude, the differential in pressure between atmospheric pressure and cabin pressure closes the valve, with the spring moving the stopper element into engagement with the water outlet. This occurs in response to the changing differential in pressure between the cabin pressure and atmospheric pressure.

Abstract: A fluid passage valve selectively opens and closes a fluid passage port defined in a bottom of a chamber which contains a fluid to be transfused into a patient's vein. The fluid passage valve has a valve member movable toward and away from the fluid passage port to open and close the fluid passage port, and a valve member casing which houses the valve member. The valve member casing has a plurality of limbs which are progressively spread outwardly away from each other in a direction toward the bottom of the chamber, so that the valve member will not be caught by the limbs when the valve member is lowered to close the fluid passage port.

Abstract: A fuel supply system for a portable engine driven device is provided which comprises two fuel tanks that are spaced apart from each other. The two fuel tanks are connected in fluid communication by a first conduit that is connected to each fuel tank at a bottom portion thereof and at a region of that bottom portion which is closest to the other fuel tank. A fluid pumping means is provided and connected in fluid communication with each of the two fuel tanks for pumping a liquid from the two fuel tanks toward a device which requires the use of the fluid. For example, if the liquid in the tanks is a liquid fuel, it can be pumped for use by an internal combustion engine. In addition, the internal combustion engine can be connected in torque transmitting relation with a compressor such as in a portable engine driven compressor apparatus.

Abstract: A water hammer absorber provided in a cold or hot water supply passage including: a tubular portion whose cross section gradually decreases toward a flow direction of cold or hot water until the inner diameter of the portion becomes minimum and then gradually increases toward that direction so that a negative pressure generates therein; and a pressure absorbing chamber which is formed at the minimum inner diametered section of the tubular portion or therearound at the downstream side so as to communicate with the water supply passage and which is provided with a passage-way leading to the atmosphere and a check valve disposed in the passage-way and capable of admitting the entry of air only into the pressure absorbing chamber. The absorber according to the invention is suitably used in the joint of a delivery faucet or a mixing faucet.

Abstract: A simple flow control device is provided in a condensate drain pipe to prevent the flow of refrigerant vapor therethrough and to regulate the flow of liquid refrigerant as a function of the level of accumulated liquid refrigerant in the drain pipe. The only moving part is a float device that rides up on a cylindrical valve body in response to the level of liquid refrigerant to thereby expose slots in the valve body which allow for the flow of liquid refrigerant to the refrigerant return line to the cooler.

Abstract: A retrofittable drain insert for existing bell shaped traps and other type drains is provided. The drain insert enables an existing bell trap or pipe drain to be modified and upgraded easily by not only preventing the backflow of sewer gases but also by substantially reducing the backflow of fluid through the drain into the drained area. The drain insert includes a housing with a valve means suspended by an expandable suspension means which easily fits into and can be mounted within the existing drain opening. The valve means has a larger diameter than the housing so as to form a gas tight and fluid tight seal, however, it has a smaller diameter than the existing drain opening so as easily to be retrofittable and fit therein.

Abstract: A flow regulator comprises a float valve body provided in an inner container which in turn is fitted in a lower portion of an outer container. The float body has an elongated slender upper portion which is suddenly restricted at an upper side and an elongated tapered lower portion. The slender upper portion extends through a central opening of a first plate at the top end of the inner container. The tapered lower portion passes through a valve seat of a second plate placed below the first plate and extends beyond a restricted tubular bottom end of the inner container. A flexible tube is sleeved on said tubular bottom end and receives the end of the float body. By moving the flexible tube, the float body can be moved away from the valve seat. A further valve seat may be formed in the tubular bottom end of the inner container.

Abstract: Apparatus for regulating the flow of a subject fluid which includes immiscible fluids having differing densities such as oil and water, wherein plug means are provided which sink in oil and float in water, said plug means being positioned to control the flow of fluids through a scupper aperture. The plug means cause a sealing surface to move in and out of contact with the scupper aperture. Means are provided to enhance the separation of the sealing surface from the scupper aperature when fluid flow is to be permitted, and to increase the fluid tightness of the seal when fluid flow is to be prevented. Means are also provided for reducing the effects of turbulence in the subject flow, and hence to enhance the separation of the immiscible fluids from one another.

Abstract: The present invention pertains to a condensate trap for a condensing furnace comprising a housing having an inlet adapted to be connected to a condensing heat exchanger, an outlet for flue gas and an outlet for condensate. The housing has a chamber therein, a valve seat defining an opening from the chamber, a float valve in the chamber adapted to close the opening, and a drain orifice in the outlet for condensate forming a dam to prevent negative pressure from undesirably dislodging the float valve from the opening. The drain orifice is constructed and arranged to retain condensate at a level higher than that of the bottom of the valve seat.

Abstract: A fuel tank construction comprising a tank and a sump is disclosed which construction includes a float operated water separator. The separator operates automatically to drain water which has separated out and accumulated at the bottom of the sump. The separator is in the sump which is secured to the underside of the tank. The tank has an opening through which the sump and tank communicate, and there is a normally open one-way valve in this opening. This valve prevents water and solids flowing back into the tank from the sump if the tank construction is inverted. Within the tank there is a filter through which fuel flows to reach the fuel outlet line. The filter is normally spaced along the tank from said opening but can be displaced to a position overlying the opening when access to it through said opening is required for servicing purposes.

Abstract: A gas separation valve assembly for a diesel motor system having a tank with a float therein controlling a valve mechanism through which fuel is dispensed from the tank. A dual sleeve assembly is arranged within the tank having an inner sleeve with a lower end in fluid-tight connection with the tank and an outer sleeve arranged to define an annular space between itself and the outer wall of the tank and an intermediate space between itself and the inner sleeve. Fuel is introduced into the tank through an aperture so as to flow into the annular space between the tank wall and the outer sleeve and then to pass through the intermediate space so as to overflow the inner wall and to flow into an interior space of the tank within which the float is located.

Abstract: The separating valve is intended for discharging the liquid phase of a two-phase fluid. It comprises a seating and a valve member, the latter being actuated to open by a float at the end of a first arm of a lever, whose other arm comprises a cam which engages in a neck of the shank of the valve member. The seating comprises a port at the center of a flat face from which projects a sleeve for guiding the shank of the valve member. Directed towards the flat face, the valve member comprises a flat plate from which there projects a truncated conical valve needle. Between seating and valve member there is defined an annular space communicating by three passageways with the chamber for receiving the liquid phase: one passageway which is an extension of a slot where the lever arm fits, and two passageways along a diameter perpendicular to the slot and tangential to the flat face.

Abstract: Apparatus for regulating the flow of a subject fluid which includes immiscible fluids having differing densities such as oil and water, wherein plug means are provided which sink in oil and float in water, said plug means being positioned to control the flow of fluids through a scupper aperture. The plug means cause a sealing surface to move in and out of contact with the scupper aperture. Means are provided to enhance the separation of the sealing surface from the scupper aperature when fluid flow is to be permitted, and to increase the fluid tightness of the seal when fluid flow is to be prevented. Means are also provided for reducing the effects of turbulence in the subject flow, and hence to enhance the separation of the immiscible fluids from one another.

Abstract: A device for the automatic regulation of fluid flows through an aperture for use with immiscible liquids having differing densities, wherein the volume, weight and shape of a floatable plug are selected to provide a negative buoyancy with respect to the less dense liquid and a positive buoyancy with respect to the denser liquid, and with the buoyancy of the plug in the various liquids determining whether the fluids will be permitted to flow through the aperture.

Abstract: A gas-sealing insert for floor drains. The insert comprises a cover for sealing a floor drain opening except for a hole passing through the cover, and tubing suspended below the cover for receiving water passing through the hole. The tubing, at one end, sealingly encircles the opening, and has an outlet at its other end. A water trap, e.g. a U-bend, is provided in the tubing between its two ends and a gas-sealing valve is located at the outlet. The valve can be opened by the presence of water passing through the tubing but closes automatically, preferably under the effect of gravity. The insert can be used to replace a conventional drain cover and seals the drain against seepage of noxious gases, such as radon, from the drain system even if the water in the U-bend evaporates when the drain is not used for prolonged periods.

Abstract: A hydro-pneumatic expansion tank is provided in a water pipe circuit. The hydro-pneumatic pressure vessel is in the form of a water/air expansion tank communicating with the pipe circuit by means of a conduit and a float valve is provided in the conduit. The expansion tank includes air under pressure and the water. A barrier liquid is provided as a barrier layer between the water and the air, the barrier liquid being made of a clear polyalphaolefin fluid which is impermeable to water and does not readily absorb oxygen. The float valve has a float member having a specific gravity less than the specific gravity of water but greater than the specific gravity of the barrier liquid such that when the barrier liquid is being drained from the expansion tank, the float member in the valve will sink onto the valve seat when the barrier liquid is in the valve chamber thus closing the valve.

Abstract: Apparatus for regulating the flow of a subject fluid which includes immiscible fluids having differing densities such as oil and water, wherein plug means are provided which sink in oil and float in water, said plug means being positioned to control the flow of fluids through a scupper aperture. The plug means cause a sealing surface to move in and out of contact with the scupper aperture. Means are provided to enhance the separation of the sealing surface from the scupper aperture when fluid flow is to be permitted, and to increase the fluid tightness of the seal when fluid flow is to be prevented. Means are also provided for reducing the effects of turbulence in the subject flow, and hence to enhance the separation of the immiscible fluids from one another.

Abstract: The invention relates to a condensate trap for compressed air plant. There is a sealing member arranged inside a trap housing. The sealing member also has the function of a float moving up and down with the level of condensate trapped in the housing. In its lowered position the sealing member shuts off a lateral discharge port and in a raised position it uncovers it. There are cam surfaces for guiding the sealing member and float so as to center it on the port.

Abstract: A vacuum toilet system comprises a waste-receiving bowl having an outlet, a sewer pipe that can be placed at a pressure that is lower than that in the interior of the waste-receiving bowl, and a discharge valve connected between the sewer pipe and the outlet of the waste-receiving bowl for controlling passage of material from the waste-receiving bowl to the sewer pipe. The discharge valve comprises a valve housing and a closure member. The closure member is movable relative to the valve housing between an pen position and a closed position. A drive mechanism is connected to the closure member for bringing about movement thereof relative to the valve housing. A sensing device provides a control signal in the event that the drive mechanism is not able to cause the closure member to attain its closed position.

Abstract: An air eliminator for liquid handling systems comprises a cylindrical container having a liquid inlet and a liquid outlet which are separated from one another by a cylindrical porous barrier positioned to subdivide the interior of the container into first and second chambers. The cylindrical barrier comprises a porous membrane which permits liquid to flow from the first chamber to the second chamber while preventing the passage therethrough of any gases which are entrained in incoming liquid supplied to the first chamber. Any such entrained gases accumulate in an air space located in the first chamber and are vented from the first chamber at atmospheric pressure. Liquid passing through the membrane, free of entrained gases, accumulates in the second chamber within the cylindrical barrier, and then passes to the liquid outlet via a modulating valve in the second chamber.

Abstract: There is provided a steam trap having a first valve seat and cooperating closure valve, and an associated control device. A second valve seat and cooperating closure valve are disposed downstream of the first valve seat. An actuating element influenced by the inlet pressure is provided for the second closure valve, which, furthermore, is acted upon by an opening biasing force of a certain magnitude.

Abstract: A condensate separating and discharging device including a pressure reducing valve, a separator section and a steam trap section provided below the separator section. The steam trap section includes a condensate discharging valve having a float, a dome-like float cover for covering the float and at least one small hole formed through the float cover. The invention is directed to an improvement whereby the small hole formed in the cover is located at a position on a circle having a center identical with that of the float cover and having a radius obtained by multiplying the outer diameter of the float cover by an empirical coefficient having a value between 0.2 and 0.36.

Abstract: A safety device for monitoring the condition of the condensate outlet conduit in a high efficiency furnace is provided which comprises a float member positioned in a condensate trap arranged to float on the condensate and to rise in response to a rising level of condensate in the trap to block the gas vent inlet. A pressure sensing device is utilized to sense the back pressure in the vent and when the float blocks the vent inlet, the back pressure increased and the sensing device will then operate to terminate operation of the furnace.

Abstract: A vacuum pump drain device for draining contaminating water from the oil reservoir of a vacuum pump. A valve regulates the flow of water through an outlet port disposed adjacent the water responsive to the level of the oil in the oil reservoir. Preferably, the valve includes a float attached to an outlet port seal by a shaft or the like.

Abstract: Holding tanks in an extremely simple vacuum-sewage system can provide high volume storage against emergencies such as vacuum pump failure, while providing under normal circumstances frequent, sudden, small-volume discharges in which any one holding tank discharge may trigger one or more others as in a cascade sequence, precluding conditions that might produce septic accumulations. Each holding tank has a float valve with a float that can be held on the respective valve seat, against buoyancy by sewage, by conventional vacuum pumping of the main. When vacuum in the main is degraded by use of a special valve or switch for the purpose or by holding tank discharge, holding tanks are selectively discharged as a result.

Abstract: A condensate discharge device for combustion apparatus which automatically drains condensate from the combustion chamber or flue while preventing escape of gaseous products of combustion. The device includes a housing having an inlet in its upper end connected to the combustion conduit containing the waste gases of combustion. An outlet tube is disposed in an opening in the lower end of the housing in alignment with the inlet and the upper end of the outlet tube projects a substantial distance above the lower surface of the housing and provides a seat. A hollow plastic ball rests on the seat to prevent escape of gases from the housing. Condensate generated by cooling of the combustion gases flows into the housing and when the condensate accumulates to a level above the seat, the ball will float to permit the discharge of the condensate while preventing discharge of the gaseous products of combustion.