Abstract: A gasoline dispensing system and method according to which one end of a dispensing hose is connected to a source of gasoline, and a nozzle is connected to the other end of the hose for dispensing the gasoline. A conductor is connected to a source of energy to cause the energy to be transmitted flow through the conductor. The conductor extends through the length of the hose and the dispensing of the gasoline is terminated when current ceases to flow through the conductor as a result of it breaking in response to a drive-off, or the like.

Abstract: A gasoline pump system for the concurrent filling of more than one car, tank or container with gasoline or other liquid petroleum products comprising: a plurality of fuel outlets, each for delivering a predefined type of fuel, wherein each outlet is supplied by a fuel pump from a reservoir containing one type of fuel and further including a flowmeter for measuring the amount of fuel delivered; a plurality of sets of interface means with a station operator, each set relating to one serviced car, wherein each set comprises input means for selecting the type of fuel for that serviced car and display means for indicating a filling status for that car; and a digital controller comprising an output for activating pumps for desired fuel types responsive to electrical signals received from the sets of interface means, input means for receiving signals indicative of the amount of fuel delivered from each of the flowmeter means, computer means for computing filling-related status information and for outputting the stat

Abstract: A housing in which a first hinge member is disposed on an enclosure and has a curved surface. A second hinge member is disposed on a door for the housing and also has a curved surface. The respective curved surfaces of the hinge members interlock to connect the door to the enclosure while permitting relatively pivotal movement therebetween and quick and easy removal of the door from the housing.

Abstract: A beverage dispense apparatus having one or more outlets for fluids to be dispensed, a fluid supply line for each fluid, each outlet being governed by a valve, and a valve actuator to open and close each valve. A flow sensor is positioned in each fluid supply line and connected to a control which controls the opening of its respective valve on receiving a start signal and actuates closing of the valve when the pre-determined amount of fluid flow has been achieved. Each valve includes a closure member movable in a passageway from a first position in which the valve is fully closed to a second position in which the valve is fully open. The closure member comprises a groove having a transverse cross section that increases in area in the downstream or upstream direction, whereby movement of the closure member from the first position towards the second position opens a flow channel through the groove.

Abstract: A method and apparatus for detecting tampering with a fuel dispenser digital pulse stream during dispensing of a fuel. The method includes generating a digital pulse stream indicative of the volume and flow rate of fuel dispensed wherein the pulse stream includes an identifying pulse anomaly; storing a digital pulse stream signature in a memory device wherein the stored signature includes the identifying pulse anomaly; comparing the incoming digital pulse stream with the stored digital pulse stream; and allowing fuel delivery to continue if the incoming digital pulse stream generated by the pulse generator is substantially similar to the stored digital pulse stream signature.

Abstract: A system for dispensing batches of fluid comprising a flowmeter (5), a pump or valve (6) for starting and stopping the flow and a controller (9) for controlling the pump or the valve. In order to reach a target batch size, the settling time at start of the flowmeter is compensated for as well as for the time it takes to stop the flow by generating a stop signal before the target batch size is reached. Further, to compensate for variations in the actual flow caused by variations in the feed pressure and the like, the compensation is made a function of the actually measured flow. A controller or a batch flow meter for use in dispensing batches is equipped with an interface for setting a compensating time constant and a correction unit for compensation of changes in the flow. The correction unit can consist of a differentiator an a summation circuit. Using digital techniques, the correction unit can be made as a lead filter.

Abstract: The present invention provides a fluid flow system and method according to which the fluid is pumped from a source through a conduit while the flow rate of the fluid is sensed and terminated in response to the fluid flow rate falling below a predetermined minimum. After a predetermined time delay the valve is re-opened to allow flow to resume.

Abstract: A single meter blending fuel dispensing system utilizing a pair of proportional flow control valves each having a pressure transducer positioned aft of the valve flow control mechanism. A computer controller is used to program a desired fuel mixture by varying the pressure for each flow control valve. A pressure decrease in one valve produces a corresponding pressure increase in the other valve. A third pressure transducer can be situated downstream of the valves and is set such that the pressure it receives cannot exceed that of the two valve pressures. Flow meters can be substituted for the pressure sensors. A calibration method for calibrating the positive displacement meter is also disclosed. At installation the positive displacement meter is at its most accurate and is synchronized with the less accurate pressure sensors or flow meters.

Abstract: A fluid flow system and method according to which fluid is pumped from a source through a conduit and a sensor senses the pressure of the fluid in the conduit. A meter is activated to measure the flow rate of the fluid when the fluid pressure in the conduit is relatively high, and is deactivated when the fluid pressure in the conduit is relatively low.

Abstract: Substrate beads for combinatorial synthesis are selected individually from a mixture by suspending the mixture in an electrically conductive liquid, in a bead selection vessel, causing the liquid to flow at a controlled rate through an aperture in the side wall of a pipette extending through the vessel, and detecting the passage of a bead through the aperture by monitoring an electrical resistance across the aperture. In an alternative embodiment, beads are passed through a tube into a collection passage in which a continuous laminar flow takes place. Detection takes place at the tip of the tube, and, in response to the detection of a bead, the flow through the collection passage is diverted to cause the bead to be deposited. In both cases, the selected bead is deposited into a well of a plate having rows and columns of wells in a rectangular array, while a vacuum is drawn through a filter in the bottom of the well.

Abstract: This invention relates to a height measurement apparatus for determining volume/density of wood chips on a conveyor. Such structures of this type, generally, employ the use of contacts that ride on top of the pile of wood chips in order to more accurately measure the volume and density of the wood chips.

Abstract: A device for metering and measuring quantities of liquid, in particular in a pump for liquid fuels, having a plurality of volume meters, an assigned valve being arranged upstream of each volume meter, and having a liquid supply which branches into individual supply lines opening out into the valves, wherein the valves (5) and the volume meters are assigned to a housing (1, 2, 3) configured in the form of a block, which housing has an inlet opening (4) and supply ducts (6), which branch off from the inlet opening (4) to the valves (5) and form the individual supply lines, a first housing block (1) forming the inlet opening (4) and valve connection openings (8) covered by a respective valve head (7), in which valve connection openings (8) a respective supply duct (6) opens out and from which proceeds a respective connecting duct (10) to the assigned volume meter, which connecting duct can be closed off by a piston (9), a disk, a diaphragm or the like of a valve (5), the volume meters being assigned in each case

Abstract: The present invention consists of a method and apparatus providing for the continuous stream blending, preferably on a mass ratio basis, of two or more liquids. Each individual liquid stream is synchronously dosed in precise mass ratio to a common mixing point. The flow of each stream is on-off or digital. Repeated mass ratio doses of defined and matching flow interval, referred to as synchronous digital flow, interspersed with a defined interval of no flow, constitutes digital flow at a net rate sufficient to meet or exceed some required take-away of the blended liquids. In one preferred embodiment, each dose stream flow is produced and measured by a four element apparatus preferably consisting of a servo motor and controller, a precision positive displacement pump, a Coriolis mass meter and a precision flow stream shut-off device. The servo motor and controller establish and control a periodic and intermittent flow rate necessary to displace a defined mass dose in a precisely defined flow interval.

Abstract: A fuel dispenser with telescoping frame having a upper column portion operatively affixed to a lower column portion for movement of the upper column portion relative to the lower column portion. In one embodiment, a valance is attached to the upper column portion. In this embodiment, the upper column portion and valance are adapted for movement toward and away from the lower column portion.

Abstract: Two, preferably three or more gasoline (or other fuel) blending components are delivered to a point adjacently point of sale to the motorist and are blended by an apparatus which proportions the flow of individual components in response to signals indicative of the gasoline quality variables, octane, Reid vapor pressure, percent alcohol, etc. (The preferred octane for control purposes is motor octane, but pump octane or research octane or any combination of these three may be utilized.

Abstract: A multiproduct fuel dispensing system for dispensing different grade fuels stored in several reservoir tanks. Several fuel delivery conduits deliver a specific grade of fuel from one or more of the reservoir tanks. Plural ultrasonic metering orifices are mounted in a single housing with shared electronic circuitry, and use sing-around measurement to measure flow. Each of the meters has a volume of about 50 cubic centimeters and a flow rate of about 10 gallons per minute. The housing is connected to the conduits to permit measurement of fuel flow through each meter.

Abstract: A method and apparatus for blending and dispensing fluids with multi-directional selector valves, a single meter, and a mechanism for purging the dispenser. The single multi-directional selector valve and single meter is used for reducing the number of leakage points in a dispenser, to simplify the dispenser, and to reduce the production cost of the dispenser. Purging is used for decontaminating the fluid dispenser of fluids previously used by the dispenser and to ensure proper fluid grade.

Abstract: An apparatus for delivering abrasive suspensions includes a reservoir containing an abrasive suspension, a loop for delivering the abrasive suspension to a point of use, the loop being connected to the reservoir, a pumping arrangement for circulating the abrasive suspension in the loop and for ensuring its return into the reservoir, the loop and the reservoir being arranged for recovering the abrasive suspension after circulation in the loop at a recovery point of the reservoir, and a control system for controlling the pumping arrangement so as to maintain a continuous circulation of the suspension.

Abstract: The command device for dispensing fluids comprises a handgrip posteriorly constrained to a fluid feed pipe and anteriorly bearing a spout connected to the feed pipe and destined to be introduced into an access mouth of a container to be filled with the fluid. A trigger can selectively assume at least a first, closed position in which a connection between the spout and the fluid supply pipe is closed, and a second, open position in which the connection is opened. A mobile lock can on command assume at least a first, locking position, in which the trigger is maintained in the open position, and at least a second unlocked position in which the trigger is free to return into the closed position.

Abstract: A method and apparatus for detecting tampering with a fuel dispenser digital pulse stream during dispensing of a fuel. The method includes generating a digital pulse stream indicative of the volume and flow rate of fuel dispensed wherein the pulse stream includes an identifying pulse anomaly; storing a digital pulse stream signature in a memory device wherein the stored signature includes the identifying pulse anomaly; comparing the incoming digital pulse stream with the stored digital pulse stream; and allowing fuel delivery to continue if the incoming digital pulse stream generated by the pulse generator is substantially similar to the stored digital pulse stream signature.

Abstract: An apparatus for adding an additive, such as a marker, to a base fluid, such as oil, includes a blender having a receptacle or diffusion chamber in which mixing of the additive and the base fluid occurs. The additive is injected in discrete amounts. Resistances to fluid flow in the receptacle or chamber cause fluid flow to occur at different rates in order to reduce the slugging effect caused by additive injection in discrete amounts.

Abstract: The assembly of the present invention includes a liquid dispensing device having conduit means for delivering liquids from a storage chamber to a mixing chamber, from which the liquid product is dispensed, and valve means incorporated in each conduit. The assembly further includes a flow meter for each liquid which operates to produce an output signal proportional to the quantity of liquid flowing through the conduit. A control means receives the output signals and operates on detecting that flow of one liquid exceeds a predetermined amount, by closing the flow control valve associated with that liquid. Upon detecting that the proper proportion is achieved, the control means signals the valve to reopen.

Abstract: A system for monitoring the volume rate of flow and total volume of liquid being drawn from a supply by way of a plurality of discharge conduits includes a flow meter transducer for associated individually with each of the discharge conduits with the transducers providing pulse information to associated flow meter circuits that are connected in series relationship with one another and to a master control module. Each of the individual flow meter circuits includes a pair of microprocessors, one for determining from the pulse information of its associated transducer the volume rate of flow of liquid out its associated discharge conduit. The second microprocessor is programmed to combine the flow information from its own transducer with combined flow information from an adjacent upstream flow meter circuit in the series string and produces a combined flow output signal for delivery to an adjacent downstream flow meter circuit.

Abstract: Varying the daily dose of either or both of the estrogen and the progestogen administered for hormone replacement therapy (HRT) is readily and inexpensively accomplished, without the necessity of the physician prescribing a new product each time the daily dose of the estrogen or progestogen is changed, by administering preferably transdermally the estrogen and the progestogen contained in separate extrudable pharmaceutical compositions from a dispenser which contains means, preferably adjustable only by the attending physician or dispensing pharmacist, for varying the volume of either or both of the respective compositions which is dispensed as a single dose from the dispenser in response to a defined digital dispensing manipulation of the dispenser thereby facilitating optimal compliance to a combination of HRT with individually adjusted dosages of the estrogen and progestogen.

Abstract: A system for pumping a selected fuel product from a storage tank to a dispenser includes a site controller, several fuel dispensers, each operable for dispensing a selected fuel product, and a data link connected to convey product information from a selected dispenser to the site controller. Several storage tanks each contain a different fuel product from each other tank, and also contain a submersible pump in each tank. A relay is connected to each pump. A submersible pump controller (SPC) is connected to each relay and the site controller. The SPC may also be connected to each dispenser. The SPC receives product selection information from the site controller and activates the relay connected to the pump in the storage tank containing the selected product, whereby the selected fuel product is pumped to the selected dispenser.

Abstract: A fuel dispensing installation that includes first and second fuel tanks containing first and second fuels of different octane levels. The tanks are provided with first and second octane level sensors mounted in the first and second fuel tanks respectively for measuring fuel octane levels and generating output signals indicative of the octane levels of the first and second fuels. Conduits from the first and second tanks transport the fuel to one or more fuel dispensers. The fuel dispensers include a blending system for blending the first and second fuels to form at least one blended fuel having an intermediate octane. A site controller in electronic communication with the blending system receives the output signals and controls the blending system to permit the dispensing of one or more blended fuels based on the measured octane levels of the first and second fuels.

Abstract: A fluid system and method according to which a first fluid, a second fluid, or a blend of the fuels is passed to a first meter for measuring the flow thereof while the second fluid is passed through a second meter before it passes to the first meter. The flow of the first fluid to the first meter and the flow of the second fluid to the second meter and then to the first meter are controlled by valves and, as a result, a predetermined ratio of the blended fluids can be established and maintained. The second meter can be calibrated based on the first meter and therefore does not have to inherently provide relatively accurate volumetric measurements. Thus, the second meter can be less costly than the first meter.

Abstract: The invention provides a fuel dispenser for a dispensing system having a receiver capable of receiving fueling parameters transmitted from the vehicle. The fueling parameters relate to information about tank size, ullage, maximum allowed fueling rates and maximum fueling rates as a function of ullage, among others. Based on these fueling parameters, the fuel dispenser controls the fueling operation to optimize fuel delivery and minimize fuel spillage. Control of the fueling operation may vary from simply adjusting the delivery rate to a maximum allowed by the vehicle to defining a fueling schedule for the entire fueling operation wherein the fueling schedule defines a fueling process which varies flow rates throughout the fueling operation as necessary to optimize fueling. Additionally, the dispenser may continuously adjust the maximum fueling rate throughout the fueling operation based upon a fueling parameter defining the maximum fueling rate as a function of ullage.

Abstract: A pulse encoder for fitting to a meter of a liquid dispenser device for the purpose of supplying a signal representative of the flow of dispensed liquid. The encoder includes a coding wheel driven by the meter at a speed of rotation that is substantially proportional to the liquid flow rate. The wheel carries a first series of divisions of angular period P, and referred to as "primary" divisions. Two primary sensors which detect the primary divisions are angularly offset from each other by one-fourth of the angular period, i.e. P/4, modulo P, so as to provide two primary pulse signals that are likewise offset by one-fourth of a period. The coding wheel also carries a second series of divisions, referred to as "secondary" divisions, of angular period P' equal to twice the angular period P of the primary divisions. A secondary sensor is suitable for detecting the secondary divisions so as to supply a secondary pulse signal of a period that is double the period of the primary pulse signals.

Abstract: The device serves to meter at least two free-flowing components and to convey metered quantities of the components into a mixer in which a reactive compound is formed from the metered quantities. For each component the device contains, as metering and conveying means, in each case at least one pump, a flow meter and a pressure vessel. The pressure vessel is subdivided by a flexible diaphragm into a first part-volume, which in each case receives one of the components, and a second part-volume which can be acted upon by incompressible fluid. When a starting component containing abrasive substances is used, to avoid sedimentation of the abrasive substances during metering and conveying, the pressure vessel which receives the abrasive component is designed and arranged in such a way that the abrasive component fed into its first part-volume rests on the flexible diaphragm.

Abstract: A device for dispensing multiple fluids in, for instance, a vehicle service facility is provided with a plurality of control modules. Each of those modules is capable of being connected to a number of pumps, a number of solenoid valves and a number of meters. This system may be set up such that to dispense one fluid a pump may be turned on from a first control module, that pump being connected to a valve connected to a second control module and even a meter connected with a third module. Of course, the pump, valve and meter may, if desired, all run off of the same module as well. By user programming, the user selects connected sets for each fluid. This architecture minimizes the amount of wiring and other connections as different modules may be closed to different parts of the plumbed section. Provision is made for security on the operator pendants and outputting of data for billing and record keeping.

Abstract: The invention provides a fuel dispenser for a dispensing system having a receiver capable of receiving fueling parameters transmitted from the vehicle. The fueling parameters relate to information about tank size, ullage, maximum allowed fueling rates and maximum fueling rates as a function of ullage, among others. Based on these fueling parameters, the fuel dispenser controls the fueling operation to optimize fuel delivery and minimize fuel spillage. Control of the fueling operation may vary from simply adjusting the delivery rate to a maximum allowed by the vehicle to defining a fueling schedule for the entire fueling operation wherein the fueling schedule defines a fueling process which varies flow rates throughout the fueling operation as necessary to optimize fueling. Additionally, the dispenser may continuously adjust the maximum fueling rate throughout the fueling operation based upon a fueling parameter defining the maximum fueling rate as a function of ullage.

Abstract: The assembly of the present invention comprises a liquid dispensing device having conduit means for delivering liquids from a storage chamber to a mixing chamber, from which the liquid product is dispensed, and valve means incorporated in each conduit. The assembly further comprises a flow meter for each liquid which operates to produce an output signal proportional to the quantity of liquid flowing through the conduit. A control means receives the output signals and operates on detecting that flow of one liquid exceeds a predetermined amount, by closing the flow control valve associated with that liquid. Upon detecting that the proper proportion is achieved, the control means signals the valve to re-open.

Abstract: A postmix juice dispenser for use with a disposable juice concentrate package that includes an integral progressive cavity pump and a mixing nozzle. The dispenser can read a product I.D. label on the package to automatically change ratios as packages are switched and a low liquid level indicator in the package to both warn the operator and to then provide automatic shut-off. A controller adjusts the pump motor speed in response to signals from a water flow meter to provide excellent control of ratio, even as water pressure changes. An easy lift-out refrigeration deck is located over an ice-water bath tank capable of holding 27 pounds of ice.

Abstract: A switch, mounted on a standard beverage tap, provides an electrical signal indicating when beverage is being dispensed into a serving container. The electrical signal is applied to a monitor which measures the period of time that the beverage flows from the tap. As beverage dispensing occurs, a series of steps are taken which determine from the time measurements whether the dispensing is proceeding into one container, is complete, is part of a continuous pour into several containers or has been completed with a subsequent single container pouring operation occurring. That determination is based on whether the period of time is within a range indicative of dispensing the beverage into a single serving container. When that determination is made a serving container count is incremented. The monitor also uses the measured time period to detect when the tap is opened for longer than the typical time required to fill a single beverage container.

Abstract: A dispenser system is provided, comprising a dispenser head (3), a feeding jet for water (7) at the dispenser head, and a reservoir immediately above the dispenser head for material to be dispensed, wherein an external supply of water is fed to a tank (4) arranged at a predetermined head above the dispenser head (3), wherein a feeding line (9) connects the tank (4) to the feeding jet (7), and wherein variations of flow to the tank (4) are accommodated by means of an overflow line (10) from the tank to a flushing jet (10) at the dispenser head, such that the water at the feeding jet (7) is always at a known pressure. This dispenser system was found to be a flexible arrangement in which low water pressures and/or varying water pressures can be adequately accomodated.

Abstract: An arrangement for dosing fluids, such as beverages, comprising a flow meter arranged in the fluid dosing duct, an on-off valve arranged in the dosing duct downstream of the flow meter for releasing or cutting the flow of fluid, and an evaluation circuit that transmits a switching off control signal (closing signal) to the on-off valve when a predetermined amount of fluid has passed through the flow meter. The flow meter and on-off valve are preferably an impeller flow meter and an electrically actuable on-off valve, respectively. In order to improve the dosing accuracy, a sensor is provided with the flow meter for sensing the speed of flow given, for example, by the frequency of rotation of the impeller and for supplying, to the evaluation circuit, a preferably electric sensor signal that corresponds to the speed of flow.

Abstract: A fuel dispenser for delivering fuel along a fuel delivery path, a flow rate modulator in the fuel delivery path and a control system operatively associated with the flow rate modulator for regulating the rate of flow in the fuel delivery path during a fueling operation to achieve a flow-rate-dependent result. The precision fuel dispenser may further include a flow transducer in the fuel delivery path configured to provide a flow transducer signal representing a volume of fuel flow in the fuel delivery path to the control system.

Abstract: A vapor recovery system (20) with integrated monitoring unit (28). The system includes one or more tanks (22, 24, 26) into which captured vapor is returned. A pressure sensor (52) is mounted into each tank not in fluid communication with the other tanks. The signals produced by the pressure sensors are forwarded to a control module (54). In the event the measured pressure drops below a selected level the control module actuates an alarm (56). The control module also disables the dispenser (31, 32) generating the liquid that is being vaporized.

Abstract: An oil-feeding apparatus of the present invention includes a main body housing containing oil-feeding pumps and flow meters therein. An indicator housing is placed on the main body housing with supplied oil amount indicators, and a strut is stood at one side of the main body housing. A top housing has one end connected to the top of the strut, and the other end extended to a part above the main body housing. A hose guide is provided between the main body housing and the top housing, which guide oil-feeding hoses, each with an oil-feeding nozzle at a free end thereof, the other end being connected to a discharge pipe provided at the outlet side of the flow meter at a lower part of the hose guide. Retractors are provided in the top housing with wires drawn from the retractors. The midportion of each of the hoses is joined to the wire so as to be suspended in an inverted U-shape in the hose guide.

Abstract: A system which precisely arrays small objects into a plurality of containers which comprises a vessel containing the objects in a fluid suspension; a tube, the proximal end of which is positioned substantially at the bottom of the vessel and the distal end of which is connected to a member which directs gravitationally-formed fluid drops from the distal end downward into a container positioned below said distal end; a small-objects detector, for detecting the objects in the fluid in the tube, disposed near the distal end; a drop detector connected to the member below the distal end; a device for controlling flow of the suspension through the tube by pressurizing the vessel; or device for discriminating between those signals from the small-objects detector caused by the small objects and those signals caused by other events, i.e.

Abstract: The invention relates to a method and apparatus for dispensing and metering a fluid, particularly fuel, from a plurality of fluid sources to a single or a plurality of fluid outlets. The invention uses a single meter for measuring the amount of fluid dispensed from each of the fluid outlets. Valves are used at the inlet to and outlet from the meter to control the flow of fluid from a single source to a single outlet intended to dispensing fluid from the selected source. The invention is particularly useful in a multiple grade or octane-level fuel pump or dispenser. The meter can advantageously be located near the dispensing nozzles, so that the contamination caused by using a single meter is purged after a small amount of fuel is dispensed. The invention preferably uses a small-volume meter with valves located near the meter, to thereby limit the amount of octane variation caused by use of a single meter.

Abstract: Apparatus for dispensing liquids includes a body in which the liquid is initially located. A one-way valve and an outlet are located on the body in reasonable proximity to each other, the outlet communicating with a conduit able to be closed by a control valve. When the body is located such that the one-way valve and the outlet are below the surface of the liquid, gravity ensures constant liquid flow through the conduit when the control valve is opened, and when air begins to pass through the one-way valve. A flow rate change measuring instrument has two metallic strips, one of which is able to move in relation to the other strip in response to flow changes, the capacitance between the strips being processed to obtain a measurement of flow rate change. The measuring apparatus may be located in the conduit of the dispensing apparatus.

Abstract: A container and dispenser for fluids, especially hydraulic and engine oil fluids for aircraft. The container, which is preferably made of a recyclable polymer such as high density polyethylene, is rectangularly parallepipedal, with a crowned top to minimize contamination by water or particulate matter. A pump is mounted on the top of the container, and various filters, check valves, and quick disconnect couplings are provided to further minimize contamination. In use, the container is mounted on a 2-wheeled cart that is especially designed to accommodate it.

Abstract: A fuel dispenser capable of distributing two fuel products by using flexible tubes and automatic distributing nozzles placed on a front side or on a gable side of a basic module is transformed by a rotation of its base over a quarter of a turn and by a rotation of its head over a quarter of a turn, thereby converting the dispenser to distributing multiple fuel products.

Abstract: Method and apparatus for supplying a preset quantity of a liquid, using a tank containing the liquid, a check valve distributor, and a hose connecting the tank to the check valve distributor, and having a pumping unit, a solenoid valve, and a pulsed flow meter interposed between the tank and the check valve distributor, including determining a volume difference between a first quantity delivered by the apparatus and a first quantity detected by pulsed flow meter, as the liquid is pumped at constant flow rate, low pressure and under laminar flow, during a first delivery of the liquid; starting a subsequent delivery of the preset quantity of the liquid, by opening the solenoid valve; and stopping the subsequent delivery of the preset quantity of the liquid when a difference between the number of pulses generated by the pulsed flow meter corresponding with the preset quantity, and the number of pulses output by the pulsed flow meter reaches a number of pulses corresponding to the volume difference; and during a

Abstract: The present invention provides improved method and apparatus for the transfer and delivery of very high purity chemicals for use in semiconductor production and similar processes. By employing a series of vessels arranged in parallel, a vacuum system to draw chemical from one or more bulk sources into the vessels, and a pressure system to deliver chemical under pressure from the vessels, chemicals can be easily delivered from any bulk source to one or more end-users. The use of a vacuum system to draw chemicals through sealed conduits eliminates the need for pumps which are a source of both maintenance problems and contamination in the system. Multiple vessels provide for a variety of flow options, which include continuous and uniform chemical delivery to the end-users, recirculation and regular filtration during periods of low use, and built-in redundancy to avoid system shut down if there is a component failure. Computer controlled process systems provides system flexibility and full automation.

Abstract: An improved dental hygene center utilizing push button toothpaste dispenser and incorporating a cooperating floss dispenser, automatic paste dispersal on the brush, mouthwash access, counter for replacement of toothpaste and message center.

Abstract: The present invention provides a dosing system and method for quickly and accurately indicating the proper volumetric dosage of a topical preparation. The container holding the topical preparation is provided with a pictorial representation of a measurement area which is equivalent to a known amount of the preparation when dispensed from the container to cover an equivalent area. A specialized instruction set is provided on the container which equates the represented area to dosage requirement such as age, weight, and/or effective application rate usually expressed as milliliters of topical preparation per square area of skin surface.

Abstract: An automated fueling facility allows untrained persons to safely dispense homogenous phase liquid methane from a cryogenic storage tank into a motor vehicle. The fueling facility automatically maintains pressure on the liquid methane within a predetermined safe operating range using methane gas trapped in the cryogenic storage tank. The pressure on the liquid methane is at least set equal to a set pressure equal to the sum of the saturation pressure of the liquid methane plus an additional amount to help to ensure that it remains in a fully saturated condition after absorbing any heat during pumping from the storage tank. A pump is cooled by placing it in the storage tank and circulating liquid methane through the pump and back into the storage tank. A dispenser, including nozzle for connecting to a motor vehicle, is cooled by circulating liquid through the nozzle and back to the storage tank through a receptacle on the dispenser to which the nozzle is connected.