Abstract: A fuel tank and a canister are connected to each other by a first evaporated-fuel passage and a second evaporated-fuel passage, and a valve chamber of a float valve separate from the fuel tank is disposed at an intermediate portion of the first evaporated-fuel passage. Thus, there is no limitation in the positional relationship between a filled-up liquid surface in the fuel tank and a valve seat of the float valve. Therefore, it is possible to reduce the vertical dimension of the float valve. Moreover, since the valve chamber is provided separately from the fuel tank, it is unnecessary to define an opening for mounting the valve chamber to the fuel tank.

Abstract: A ventilating/sterilizing system for food-quality liquid storage tanks has a weatherproof overhead hood. Incoming air, drawn up into the hood is first filtered at the intake of an electric blower forcing the airflow through a main filter to be sterilized by ultraviolet radiation then heated for tank entry, where airflow drives out moisture and displaces air in the head region through a specially designed weather protective tank outlet vent with a removable cone-shaped dual-screen filter unit. A remote indicator light panel indicates normal operation and malfunctions. Stainless steel construction throughout minimizes deterioration and contamination. The main filter is enclosed in a housing mounted on a base unit containing the ultra-violet chamber, the heating chamber, and electrical components. The hood is hinged for intake filter access; similarly the blower assembly is hinged for main filter access for replacement or cleaning.

Abstract: An apparatus for packing a container with powder of the present invention includes a suction pipe. The suction pipe includes an air separating portion implemented by a plurality of layers that are sieve nets or filters each having a particular mesh size. The air separating portion can therefore suck air contained in the powder over its entire periphery, enhancing dense, accurate packing of the container with the powder.

Abstract: A fueling environment having a vent on an underground fuel storage tank may be improved by adding a mass flow meter in conjunction with a vapor recovery membrane in a tank vent. The mass flow meter measures an amount of vapor that passes through the vent and thus allows alarms to be generated if the vapors passing through the vent exceed a predetermined level or an efficiency of the membrane drops below a predetermined threshold. Measurements from the mass flow meter may be provided to a site controller or a remote location for further analysis.

Abstract: A fueling environment having a vent on an underground fuel storage tank may be improved by adding a mass flow meter in conjunction with a vapor recovery membrane in a tank vent. The mass flow meter measures an amount of vapor that passes through the vent and thus allows alarms to be generated if the vapors passing through the vent exceed a predetermined level or an efficiency of the membrane drops below a predetermined threshold. Measurements from the mass flow meter may be provided to a site controller or a remote location for further analysis.

Abstract: A method and apparatus have been provided for directing toner from a hopper containing a supply of toner to fill as well as cleanly cutoff filling of a container without post-cutoff dribbling. The apparatus for the method includes (a) a conduit member connected to the hopper and having a discharging end for permitting a toner to be moved therethrough; (b) a conveyor device located at least partially within the conduit member for moving the toner from the hopper in a toner moving direction towards the container; and (c) an anti-dribbling nozzle device for directing the toner from the conveyor to cleanly fill the container. The anti-dribbling nozzle device includes a source of pressurized air, a controller, and a nozzle member that has a first end connected to the discharge end of the conduit member, a second and opposite end for dispensing moving toner into the container, and a nozzle wall connecting the first end to the second thereof.

Abstract: A filling system includes a container, a cap for the container defining an egress and an ingress for a material from and to the container, respectively, a tank in fluid communication with the container through both the ingress and the egress of the cap, and means for urging the material between the container and the tank through the egress and ingress of the cap. A cap for a container includes a cap base engageable with the container and defining an inlet port and an outlet port, an inlet coupling in fluid communication with the inlet port, a draw tube, and an outlet coupling in fluid communication with the draw tube.

Abstract: A device for transferring a fluid product from one container to another including a hollow needle suitable for piercing a membrane and having a first, front opening, the needle being connectable to one of the containers via a first, rear hollow needle opening so that the fluid product can be conveyed into or out of the container through the hollow needle and hollow needle openings, the needle having a second, rear opening which forms a fluid connection between the another container and a pressure compensation device or the environment while the fluid is being transferred.

Abstract: The object of this invention is to improve safety by preventing the leakage of liquid caused by the internal pressure of a container. A liquid path plug in which a pipe is provided in the lid section of the plug, and a gas path plug which does not have a pipe are attached to openings of the container. The engaging groove section is formed on the end surface of the liquid path cap which closes the through hole provided in the liquid path plug section of the liquid path plug. The engaging protrusion section and the engaging hole section are formed on the end surface of the gas path cap which is provided in the gas path plug section of the gas path plug and closes the through hole. The gas path cap is detached by engaging the engaging pin of the detaching fixture on the engaging hole section of the gas path cap and by turning the gas path cap.

Abstract: A method and apparatus for monitoring and determining fuel vapor recovery performance is disclosed. The dispensing of liquid fuel into a tank by a conventional gas pump nozzle naturally displaces a mixture of air and fuel ullage vapor in the tank. These displaced vapors may be recovered at the dispensing point nozzle by a vapor recovery system. A properly functioning vapor recovery system recovers approximately one unit volume of vapor for every unit volume of dispensed liquid fuel. The ratio of recovered vapor to dispensed fuel is termed the A/L ratio, which should ideally be approximately equal to one (1). The A/L ratio, and thus the proper functioning of the vapor recovery system, may be determined by measuring liquid fuel flow and return vapor flow (using a vapor flow sensor) on a nozzle-by-nozzle basis. The disclosed methods and apparatus provide for the determination of A/L ratios for individual nozzles using a reduced number of vapor flow sensors.

Abstract: Apparatus and method of replacing old fluid in a transmission system by feeding clean fluid into the system from a clean fluid tank using a pump and draining the old fluid into a waste tank and using a processor to monitor the clean fluid pressure in the clean tank and the old fluid pressure in the waste tank and adjusting the pump's speed using the processor such that the old fluid is drained at substantially the same rate as the clean fluid is fed.

Abstract: A method of assembling and filling a dispenser device for dispensing a fluid substance made up of an active substance and of a propellant. The device includes a receptacle and a dispenser member, such as a metering valve, for dispensing the fluid substance. The method is characterized in that it includes the steps of assembling the dispenser member onto the receptacle in leaktight manner; inserting a determined quantity of propellant into the receptacle and/or into the dispenser member; storing the dispenser device for a determined storage time; checking and/or testing the dispenser devices so as to discard any devices that have defects; and filling the active substance to be dispensed only into those devices which have satisfied the checking and/or testing.

Abstract: A method of replacing radiator fluid in an automotive radiator includes providing two gas tight containers, a fluid conducting hose with a gas tight nozzle fitted into a radiator fill pipe nipple. The method further includes the steps of filling one of the containers with a fresh radiator fluid, drawing a high vacuum on a second one of the containers, drawing spent radiator fluid into the second one of the containers using only suction from the container, thereby leaving the automotive radiator under a partial vacuum and then drawing the fresh radiator fluid, from the first one of the containers, into the radiator using only suction from the partial vacuum in the radiator. A radiator flush step may also be applied following the same method, using two additional containers, one with initial high vacuum and the other containing flush fluid.

Abstract: A resealable cap for a medicament vial has a base portion formed of vulcanized rubber or like material known for providing a stable environment for the medicament contained within the vial, and a resealable portion overlying the base portion. The resealable portion is made of low-density polyethylene or like material, and can be punctured by a needle or like injection member for dispensing medicament into the vial. Prior to filling, the cap is assembled to the vial and the cap/vial assembly is sterilized. Then, a needle is inserted through the cap and medicament is introduced through the needle and into the vial. Upon withdrawal of the needle, the penetrated region of the cap is fused by laser or direct heat sealing to hermetically seal the needle hole in the cap.

Abstract: A method for actuating an onboard refueling vapor recovery (ORVR) valve to selectively enable passage of fuel vapor from a fuel tank to a collection canister for the fuel vapor. The method includes determining whether a filling event is occurring and determining a fuel level within the fuel tank. The ORVR valve is selectively opened and closed in connection with whether a fueling event occurs and whether the fuel tank is full.

Abstract: A wine preserving assembly which simultaneously delivers an inert-gas to the headspace of a wine bottle while simultaneously evacuating undesirable gas contained in the headspace through the action of operatively engaging an inert gas-containing vessel to the wine preserving assembly.

Abstract: A method for controlling pressure in the vapor or ullage space of an underground storage tank of volatile liquid fuel includes treatment or conditioning of gaseous flow of vapor and air and/or air into the ullage space in a manner to increase the fuel vapor concentration of the gaseous flow toward saturation. A system for controlling pressure in the vapor or ullage space of an underground storage tank of volatile liquid fuel is also described.

Abstract: A system is provided that includes a load lock apparatus having an interior configured to receive an object. At least one inlet valve may be flow coupled to the interior of the load lock apparatus, and at least one outlet valve may also be flow coupled to the interior of the load lock apparatus. A controller may be configured to selectively control opening and closing of the at least one inlet valve. The load lock apparatus may include an object receiving mechanism that is movable within the interior of the load lock apparatus to throttle the evacuation of the interior. Several methods of using the system and load lock apparatuses are also disclosed.

Abstract: An apparatus (10) for filling at least one cell of an accumulator (12) with electrolyte is described, having a vacuum pump (14) for evacuating the cell of the accumulator (12), and having a filler device (16) for introducing the electrolyte into a fill opening (32) of a cell, and having a container (18) for receiving the entire accumulator (12), the container (18) communicating with the vacuum pump (14) via a connection stub (20), so that the accumulator (12) can be put in its entirety under a vacuum, and the filler device (16) has at least one delivery line (22) for the electrolyte, which line is extended in vacuum-tight fashion into the container (18). The delivery line (22) on each end has a respective filler head (34) with an outlet stub (36), and the outlet stub (36) engages the inside of the fill opening (32) of a cell with play (FIG. 1).

Abstract: Refilling of a used liquid container of a liquid ejector such as an ink-jet apparatus is carried out by sequentially performing the steps of drawing out liquid remaining in the liquid container by way of a liquid outlet port of the liquid container, reducing the inner pressure of the evacuated liquid container by way of the liquid outlet port, and filling liquid from a liquid supply tank into the liquid container by way of the liquid outlet port. The liquid drawn out from the liquid container is fed back into the liquid supply tank.

Abstract: A nozzle is provided which includes a nozzle body having a proximal end and an insertion end and defining an inlet orifice at the proximal end thereof and an outlet orifice at the insertion end thereof. The nozzle body is adapted to be attached at the proximal end thereof to an opening of a container and to be inserted at the insertion end thereof into an opening of a receiving vessel for dispensing a first fluid from the container into the receiving vessel from the inlet orifice to the outlet orifice thereof. The nozzle further includes a venting device connected to the nozzle body and defining a vent discharge opening for venting a second fluid from the receiving vessel into the container through the vent discharge opening such that the second fluid is vented through the vent discharge opening of the venting device without traversing the first fluid in the container substantially during an entire time for a dispensing of the first fluid from the container into the receiving vessel.

Abstract: A vent module is adapted to be mounted in a top wall of a fuel tank to vent fuel vapor from the tank to a vapor recovery canister located outside the tank. An outer shell is positioned around the vent module to define a fuel vapor transfer passageway arranged to conduct liquid fuel droplets into a liquid fuel accumulation chamber. A fuel vapor transfer port is formed in the outer shell to admit fuel vapor into the fuel vapor transfer passageway. A fuel vapor inlet port is formed in the vent module to lie below the fuel vapor transfer port. Liquid fuel entrained in fuel vapor is shed as fuel vapor flows laterally from the fuel vapor transfer passageway into the vent module through the fuel vapor inlet port so that “demoisturized” fuel vapor flows into the vent module and liquid fuel droplets fall into the liquid fuel accumulation chamber.

Abstract: A fill cup is provided for a fluid filter having a housing and an end plate which enclose a filter element. The end plate has an inlet port for receiving unfiltered fluid and an outlet port from which flows filtered fluid. The fill cup includes a base having openings formed therein, a cylindrical rim which surrounds the base, and a hollow tube which extends axially through the base and rim. The tube forms a stub which projects away from the base and which is adapted to be coupled to the outlet port of the filter. The tube also forms a hollow standpipe which is aligned with the stub and which projects away from the base and into an interior of the cup. When the filler cup is mounted on the filter, the cup openings communicate fluid to the inlet ports of the filter, and the hollow tube prevents unfiltered fluid from directly entering into the outlet port and communicates air from the filter to atmosphere as the filter is filled with fluid.

Abstract: The invention relates to a method and apparatus for an integrated vapor recovery and fuel delivery system for a fuel dispenser. The apparatus includes a fuel dispenser having a member constructed from extruded material connected to the fuel dispenser. The member has at least one fluid conduit located inside the member for transporting fluid. The member also has a vapor conduit located inside the member for transporting vapor.

Abstract: A fluid servicing apparatus for exchanging fluids with a power steering fluid reservoir including drain and supply conduits with inline pumps coupled to a control board on a cabinet housing new and used fluid receptacles and a remote pump actuator in communication with the control board including a switch selectively operable to actuate either of said pumps to drain and fill the reservoir.

Abstract: A manifold assembly for use in conjunction with a servicing apparatus for exchanging fluid between a serviceable automobile component and new and used fluid tanks and including a rigid manifold body with a fluid circuit defining a plurality of pathways connecting a plurality of ports whereby fluid is directed through the fluid circuit and ports by selectively operating first and second valves and circulated using a common pump to exchange fluid, recirculate fluid, and drain both the used and new fluid tanks as desired.

Abstract: A servicing apparatus for exchanging fluid between a serviceable automobile component and new and used fluid tanks and including a manifold with a fluid circuit defining a plurality of pathways connecting a plurality of ports whereby fluid is directed through the fluid circuit and ports by selectively operating first and second valves and circulated using a common pump to exchange fluid, recirculate fluid, and drain both the used and new fluid tanks as desired.

Abstract: A method and apparatus for monitoring and determining fuel vapor recovery performance is disclosed. The dispensing of liquid fuel into a tank by a conventional gas pump nozzle naturally displaces a mixture of air and fuel ullage vapor in the tank. These displaced vapors may be recovered at the dispensing point nozzle by a vapor recovery system. A properly functioning vapor recovery system recovers approximately one unit volume of vapor for every unit volume of dispensed liquid fuel. The ratio of recovered vapor to dispensed fuel is termed the A/L ratio, which should ideally be approximately equal to one (1). The A/L ratio, and thus the proper functioning of the vapor recovery system, may be determined by measuring liquid fuel flow and return vapor flow (using a vapor flow sensor) on a nozzle-by-nozzle basis. The disclosed methods and apparatus provide for the determination of A/L ratios for individual nozzles using a reduced number of vapor flow sensors.

Abstract: A method of managing fuel vapor pressure in a fuel system. The method includes locating between first and second ports a poppet and a seal cooperating with the poppet, positioning the seal in a substantially symmetrically deformed configuration so as to sense a negative pressure at a first pressure level, positioning the seal in a generally asymmetrically deformed configuration so as to vent negative pressure below the first pressure level, and positioning the seal in an undeformed configuration so as to vent positive pressure above a second pressure level. The poppet is movable along an axis. And the seal is flexible between the undeformed configuration when disengaged from the poppet, the substantially symmetrically deformed configuration when engaged with the poppet, and the generally asymmetrically deformed configuration when engaged with the poppet.

Abstract: A hermetic substrate transportation container permitting storage of an electronic substrate is provided, keeping a rise of internal moisture concentration low, thus preventing generation of natural oxidation film on the surface of the electronic substrate and allowing detection of the contents inside the substrate transportation container, from outside. A container body having an aperture for loading and unloading an electronic substrate, the substrate transportation container comprising a lid for sealing such aperture, in which the container body and the lid are made of a material having an amorphous polyolefin as its main constituent. By constituting the container body and the lid using the amorphous polyolefin with low hygroscopic characteristic as a main constituent, it is possible to keep discharge of moisture from the internal wall thereof low and also to prevent an increase of moisture concentration in the sealed compartment.

Abstract: A pressure sensor includes a pair of inputs for determining the pressure within a vapor recovery path. The inputs are positioned about a flow restrictor within the vapor recovery path. The vapor recovery path may include a mounting platform for attaching the pressure sensor and positioning the inputs relative to the flow restrictor. In one embodiment, a vapor sensor may also be positioned within the vapor recovery path. An inlet port and an outlet port direct vapor from the vapor recovery path to a sensor. The inlet and outlet ports are positioned relative to the flow restrictor for forcing the vapor through the sensor. In this embodiment, a common flow restrictor within the vapor recovery path may accommodate both the vapor sensor and the pressure sensor. If vapor is not being returned in the vapor return path properly, the fuel dispenser may set an alarm condition and/or shut down the fuel dispenser operation.

Abstract: A cooling unit is mounted to an upper wall of a fuel tank so as to cool fuel. A control valve and a vent valve are disposed in a vapor line extending from a float valve to a canister. The control valve and the vent valve are disposed in parallel with one another and constitute a valve member. A cooling unit is mounted to an evaporation passage between a float valve and the valve member. Operation of the cooling units serves to cool fuel and inhibit generation of vapor. If the pressure in the fuel tank exceeds a control pressure, a control circuit opens the control valve and performs control such that the pressure in the fuel tank becomes lower than a running-state relief pressure.

Abstract: The invention provides a method of flushing the brake system of a vehicle by administering new brake fluid to the master cylinder under pressure while at the same time suctioning with a clear wand old brake fluid from a particular bleeder valve on the vehicle with all the remaining valves closed. Once the particular valve has been adequately bled, new brake fluid will be seen coming out of the valve through the clear wand, and the valve should be closed. This procedure is repeated for each of the remaining valves one at a time until all of the bleeder valves on the vehicle have been bled. Ideally, the first valve selected should be the one furthest from the master cylinder and the last valve selected should be the one closest to the master cylinder.

Abstract: An apparatus comprises a wheeled cart, and mounted on the wheeled cart a plurality of containers placed in adjacent upright attitudes. A support framework engages the wheeled cart and further provides a support framework engaging an operator's panel with operator's controls. A suction developing device, pressure developing device, conduit switching device, and conduit manifolding device, are enabled for acting together to apply vacuum and pressure exertion on fluids for driving such fluids between the containers and an automotive radiator through a system of conduits.

Abstract: A spout for a liquid container, such as a gasoline container, as well as a container equipped with the spout. The spout comprises a fluid passage and a vent passage fluidically parallel with the fluid passage. The fluid passage has an inlet, an outlet, and an S-shaped portion between the inlet and outlet. The vent passage has an inlet adjacent the outlet of the fluid passage. The S-shaped portion of the fluid passage is configured to entrap a liquid therein, causing a liquid lock to form, when a liquid is dispensed through the spout and air is prevented from flowing through the vent passage. In this manner, the spout is capable of preventing the overfilling of a receptacle tank being filled with fluid dispensed from a container equipped with the spout when the fluid level in the receptacle tank blocks the flow of air into the inlet of the vent passage.

Abstract: An electronic onboard refueling vapor recovery (ORVR) system including an electrically operated ORVR valve that selectively opens and closes a fuel vapor path between a fuel tank and a collection canister. An electronic control circuit generates control signals to selectively open and close the ORVR valve. The electronic control circuit receives one or more inputs from one or a plurality of sensors and evaluates the one or more inputs to determine whether to activate the ORVR valve. The sensor inputs include at least a sensor indicating fuel is being introduced into the filler neck and may also include at least a sensor indicating a fuel level within the tank.

Abstract: A combined oil drain and fill apparatus includes an oil supply container, oil waste container, supply pump, waste pump, supply check valve, waste check valve, Y-connector, and oil hose. One end of the supply pump is connected to the supply container and the other end is connected to the supply check valve. One end of the waste pump is connected to the waste container and the other end is connected to the waste check valve. The Y-connector has two inlets and one outlet. The supply and waste check valves are connected to the inlets of the Y-connector and the oil hose is connected to the outlet of the Y-connector. The supply and waste check valves may be replaced with a supply shut-off valve and a waste shut-off valve.

Abstract: A fuel dispenser includes vapor and hydrocarbon concentration sensors positioned in the vapor recovery line to provide accurate feedback relating to the speed and concentration of hydrocarbon laden vapor recovered by a vapor recovery system. The sensors provide diagnostic information about the vapor recovery process as well as insuring that the vapor recovery process is carried out in an efficient manner. Additionally, the sensors may be positioned in an underground storage tank vent apparatus to monitor fugitive emissions from the underground storage tank.

Abstract: A gas cushion proportioning microsystem to proportion liquid volumes in the microliter and sub-microliter ranges, comprising a liquid reservoir including a storage space for the liquid being proportioned the boundary line of which is broken through by an outwardly leading liquid passage and a gas passage, a gas displacement system which has a micropump to pump a gas and a connection to the gas passage, and a proportioning control in an operative communication with the micropump to generate a negative pressure or positive pressure by actuating the micropump and to apply the negative pressure or positive pressure to the liquid reservoir in order to receive liquid in the storage space through the liquid passage or to deliver it from said space.

Abstract: An electrolyte injection method for injecting an electrolyte into a battery case tightly closed except an electrolyte injection hole, said method comprising an electrolyte injection nozzle airtightly mounted on the electrolyte injection hole, exhausting the space inside the battery case with the electrolyte injection nozzle mounted on the electrolyte injection hole, an electrolyte pot connected to the electrolyte injection nozzle via an electrolyte injection valve and for storing the electrolyte to be injected into the battery case, and feeding a given amount of the electrolyte into the electrolyte pot via an electrolyte feeding valve, and injecting the electrolyte in the electrolyte pot under pressure into the battery case, whereby the pressurized gas feeding means is connected to the electrolyte pot via a pressure valve, and the electrolyte is injected by pressurizing the electrolyte after exhausting internal space of the battery case.

Abstract: In a preferred embodiment, a quick connect adaptor has a first coupling that attaches to the bung of a plastic blow molded drum by way of pivotal retainer members and a second coupling that connects to a conventional dispense head. The bung has internal or external threads and may have a radially extending circumferential lip or other retainer member engagement structure. The first coupling provides a secure attachment that is quickly accomplished by manual operation. In a preferred embodiment, the pivotal retaining members pivot into and out of a retention position with the radially and circumferential extending lip. The retaining members are mechanically linked with a circular manual handle member to operate the pivoting of said plurality of retaining members. The pivotal members are preferably biased toward the retention position. These couplings will generally utilize O-rings for sealing.

Abstract: A containment system for biohazardous fluids is described. The containment system operates under the action of gravity at substantially constant atmospheric pressure. The system includes a container having a first membrane and a second membrane coupled together to enclose a containment volume. The first membrane is characterized by being permeable to gases and impermeable to liquids and aerosols. The second membrane is characterized by being impermeable to gasses and liquids and includes an inlet port configured to receive a tube. A self-sealing inlet port minimizes splashing back and spillage. Particular embodiments include a single-use liner assembly and a rigid, reusable receptacle with a securable lid and a drain for disposing of collected fluids. The receptacle may be coupled to the liner assembly to substantially enclose the liner.

Abstract: A fill cup is provided for a fluid filter having a housing and an end plate which enclose a filter element. The end plate has an inlet port for receiving unfiltered fluid and an outlet port from which flows filtered fluid. The fill cup includes a base having openings formed therein, a cylindrical rim which surrounds the base, and a hollow tube which extends axially through the base and rim. The tube forms a stub which projects away from the base and which is adapted to be coupled to the outlet port of the filter. The tube also forms a hollow standpipe which is aligned with the stub and which projects away from the base and into an interior of the cup. When the filler cup is mounted on the filter, the cup openings communicate fluid to the inlet ports of the filter, and the hollow tube prevents unfiltered fluid from directly entering into the outlet port and communicates air from the filter to atmosphere as the filter is filled with fluid.

Abstract: An adapter connects different sized conduits to a radiator, where each conduit has an open end configured differently than the open ends of the other conduits. The adapter includes a body member having a cavity therein, with a connection member having one end extending from the body member to be attached to a coupling member and another end in communication with the cavity. A passageway extends between these ends. Tubular inserts are individually and independently coupled to one sized conduit. Each insert has a first end sized to fit snug within the cavity and a second opposed end sized to fit within an open end of one of the conduits.

Abstract: The present invention combines the gasoline vapor recovery efficiency advantages of a flirt “Partial Seal System”, as disclosed, for example, in U.S. Pat. No. 4,680,004 to flirt, with the customer convenience advantages of gasoline vapor recovery systems employing “bootless” nozzles. The use of bootless nozzles in combination with strict environmental vapor emissions compliance is made possible because of specific system advantages, which include the use of a burner designed to operate at two different flow rates, a coaxial processor stack which permits second and third stage combustion of excess gasoline vapor generated by the system before it is released to atmosphere, and a remote sensor which continually monitors system vacuum pressure to ensure that a sufficient vacuum is maintained at all times.

Abstract: Apparatus and method of replacing old fluid in a transmission system by feeding clean fluid into the system from a clean fluid tank using a pump and draining the old fluid into a waste tank and using a processor to monitor the clean fluid pressure in the clean tank and the old fluid pressure in the waste tank and adjusting the pump's speed using the processor such that the old fluid is drained at substantially the same rate as the clean fluid is fed.

Abstract: A method and apparatus for reconstituting a multiple component material is disclosed. More particularly, the present invention discloses an apparatus utilizing an operator controllable pressurization device to generate a pressure differential between two receptacles attached to the device. The receptacles may contain individual components of a multiple component material, and may include liquid-liquid or liquid-solid compounds. The apparatus includes a material transfer lumen attachable to a first and second component receptacle. A pressurization lumen is connected to one of the component receptacles to facilitate material transfer. One embodiment of the present invention utilizes a negative pressure differential created in the second receptacle to facilitate transfer. In another embodiment, a positive pressure is created in the first receptacle to force material transfer between the two receptacles.

Abstract: A vacuum transfer system for transferring food grade products. A biased ball in a cage with a substantially uninterrupted cage wall is utilized as a check valve. The ball may be biased by a weight to float in a predictable orientation relative to the cage. The biased ball assures that a certain portion of the ball will consistently engage with and aperture. The biased ball also minimizes chattering of the ball in the cage under high flow conditions.

Abstract: A fuel dispenser includes vapor and hydrocarbon concentration sensors positioned in the vapor recovery line to calculate the vapor-to-liquid (V/L) ratio of the fuel dispenser. If the V/L ratio is not as desired, an adjustment is made to attempt a correction of the V/L ratio. If such correction attempt is unsuccessful, and error is reported.

Abstract: Method and apparatus, for servicing engine cooling systems, including a service inlet, a vacuum pump, a two-way solenoid interposed between the vacuum pump and the service inlet, a service outlet, a disposal hose, a new fluid tank, a pressure pump interposed between the service outlet and the new fluid tank, a three-way solenoid interposed between the service outlet and the two-way, solenoid, a low-level trigger mechanism, a flow control relief valve and other elements to enhance various modes of operation. The apparatus is capable of performing various operations, including closed-loop fluid cycle, fluid vacuum, fluid top-off, fluid exchange and fluid flow control.