Abstract: A highly reliable bulk chemical refill system for high purity chemicals is provided. The system employs at least one metallic level sensor in a refillable ampule. The refillable ampule of the present invention comprises a metallic level sensor for sensing a high level or full level in the ampule. The metallic level sensor transmits this signal to a control unit that automatically stops the refilling process. Additionally the refillable ampule includes a low level sensor that either provides an automatic signal for starting the refilling process or an audible or visual alarm to alert an operator that the container is empty and requires refilling. At the same time, the low level sensor sends a signal to the processing equipment indicating the empty state of the ampule.

Abstract: A bottle cap having a valve which provides a water tight seal to prevent spillage when a water bottle is inverted for installation onto a water dispenser, but which can be opened after the water bottle is installed by generating a hydraulic shock wave within the bottle to open the valve. A first embodiment has a triple valve seal with mechanical interference between the valve pieces to create an initially water tight seal. A second embodiment employs a dual valve structure. A third embodiment employs a single valve structure. In the first three embodiments, the valves are pivotally attached to the valve body by flexible living hinges. A fourth embodiment has a single linearly sliding valve. Three methods are presented for generating the hydraulic shock wave to open the valve. In the first method, the water bottle is positioned just above the water dispenser and lowered rapidly.

Abstract: An apparatus for and a method of delivering water softener salt in bulk to residential water softeners is disclosed. The apparatus includes a bulk salt hopper mounted to a transportable frame that can be lifted by forklift and carried in the bed of a conventional pick up truck. The hopper includes an inlet for receiving salt pellets in bulk form and a discharge outlet which can be opened and closed by a gate valve. A motor driven air pump mounted with the hopper maintains the hopper at a predetermined relatively low pressure. A delivery hose is connected to the hopper outlet, and with the gate valve opened and the air pump running, salt pellets flow through the delivery hose. The delivery hose is sealably connectable through an externally accessible coupling at the serviced residence, and an internal delivery pipe leads to the water softener salt bin. Sensors are included for remotely determining the level of salt within the water softener bin, enabling the operator to stop salt delivery when the bin is full.

Abstract: A gravity based system for accurately dispensing a fluid and for mixing the fluid with another fluid. The system includes a bottle containing a quantity of the fluid. The bottle may be inverted and engaged with a dispenser assembly. The system is constructed so that the bottle is opened to allow the fluid to flow through the system when the bottle is engaged with the system, and to close the bottle when not engaged with the system. A second fluid may be introduced into the system and mixed with the first fluid in a controlled manner to dilute the first fluid.

Abstract: A system for charging compressed air cylinders with air for breathing incorporates a fragmentation containment chamber having walls of 1/4" minimum thickness steel plate and a carousel mounted in the front panel for transferring the cylinders into and out of the chamber. Specially configured locking plates are moved in and out of locking position for the carousel in accordance with the pressurizing operation. A rotary valve serves to insure that compressed air can only be transferred to the cylinders within the cylinder when they are in position for charging and not to the cylinders outside the chamber. A grating at the bottom of the chamber permits high pressure air to exit the chamber safely in case of any malfunction. Safety interlocks and automatic controls operate in accordance with rotation of the cylinders on the carousel results in the easy, rapid and safe charging of the breathing air cylinders.

Abstract: The present invention relates to a transfer tank security system for liquids such as beverage syrups which discourages the unauthorized filling of the transfer tank through either the pressurized gas inlet and/or the liquid outlet. This is accomplished by providing a flow restrictor in line with the pressurized gas inlet and/or the liquid outlet, which flow restrictor severely limits the rate at which a liquid can be introduced into the transfer tank through either the pressurized gas inlet and/or the liquid outlet.

Abstract: An electronically controlled carbon-cleaning apparatus for removal of carbon deposits in internal combustion engines. A microcomputer and associated electronics perform all control, and user interface functions. Firmware provides self test, automatic voltage adjustment to direct current systems used on internal combustion engines. The apparatus includes a fill feature whereby a solution tank is filled automatically. The apparatus circulates a fuel-cleaner solution through the fuel injection system of the engine while it is operated, thereby saving the time and cost associated with the removal and hand cleaning of injectors. Fuel-cleaner solution level and run time are continuously monitored by the microcomputer and displayed on a LCD display. Solution pressure is continuously monitored and necessary adjustments automatically made while circulating fuel-cleaner solution. An engine cut-off solenoid driver is provided to shut down the engine in the event of a empty solution tank.

Abstract: A system for delivery of volatile liquid drugs as supplied to a patient by an anaesthetic vaporizer comprises a supply container (2) and a vaporizer (32) which includes a sump. Each of the supply container and the vaporizer is provided with a valve assembly (6, 34) which, when closed, prevent passage of fluid from the supply container into the sump. The supply container and the sump are connected to one another by means of a bayonet connection, which is made when indexing elements on the containers correspond. The valve assemblies in the containers are opened when the containers are connected to one another by means of an insert (40) located within an inlet conduit (10) linking the two containers.The inlet conduit (10) is rotatable between lowered and raised positions, to open a valve (37) by which flow of fluid into and out of a reservoir for fluid in the sump can be controlled.

Abstract: A prefabricated, self-contained and self-supporting container (10) for converting dry cargo vessels in whole or in part to bulk liquid products carriers and for rapidly transporting, storing and dispensing bulk liquid products at remote locations lacking storage and dispensing facilities. A loading rack (140) allows for rapid and convenient filling of tank trucks or tank cars from the container. A plurality of active or passive containers may be connected in series to create a large terminal facility or tank farm capable of storing and dispensing a large volume of a single product or smaller volumes of a plurality of compatible products. A method for loading and unloading said containers is provided by off-loading an empty container and filling it with liquid cargo from a loaded container. The newly empty container may then itself be off-loaded and filled from yet another full container.

Abstract: The invention is an attachment for airguns and/or similar devices powered by compressed gas. The unit is multi functional in that it facilitates rapid refilling of a connected gas supply vessel from a bulk supply source, without the necessity of removing the supply vessel from the airgun. The adaptor also provides the basic benefits of a simple expansion chamber, effectively providing compensation for periodic introduction of any liquid gas propellant from the gas supply vessel caused by handling or orientation of the airgun and/or aerosol supercharging.

Abstract: A freshness keeping cup including a cup body and a check valve disposed therein. A U-shaped fixing inner sleeve member and a fixing outer sleeve member are secured with the lower portion of the cup body. A leakproof ring and a top flange of a soft bellows member are clamped between the bottom of the inner sleeve member and a top surface of an upper slide sleeve of a slide assembly. An outer lower surface of a top flange of the upper slide sleeve abuts against an inner upper surface of the bottom portion of the outer sleeve member. A top flange of the middle slide sleeve is engaged in a bottom flange of the upper slide sleeve and a top flange of the lower slide sleeve is engaged in a bottom flange of the middle slide sleeve. An upward inward projection is formed on the top flange of the lower slide sleeve. Engaging grooves are formed on lower inner portion of the lower slide sleeve for engaging with corresponding engaging hooks of a bottom cover for securing the same.

Abstract: A coupling arrangement connects a container of concentrated cleaning fluid to a dispensing apparatus in a carpet cleaning machine. To facilitate the required fluid connection, the container is fitted with a plug having one port at its center and a second port radially disposed from the center port and positioned within an annular groove concentric with the center port. The distance from the center port to the second port in the plug is equal to the distance between corresponding central and radial ports in the dispenser. When the container is rotated to engage the dispenser and advance it into position, the center port of the plug and central port of the dispenser align since they are on the same axis. The radial port of the dispenser is aligned with the annular groove in the plug, enabling fluid communication with the second port in the plug irrespective of the rotational orientation.

Abstract: A device for the loading of bottled fluid with no spillage consists of a valve body and a base plate coupled to the valve body in a vertically slidable manner. The valve body consists of a body, an integrated cap handle, a bottle seal and a pair of hinge brackets. The base plate consists of a body, a set of bottle stabilization posts and a pair of hinge brackets which, being coupled to the valve body through a pair of clamp levers, converts the sliding movements between the base plate and the valve body into rotations of the clamp levers to permit or prohibit the flow of fluid from the bottle regardless of its orientation while simultaneously unlocking or locking the device onto the bottle.

Abstract: A hygienic liquid dispensing system includes a coaxial cap to close the opening of an inverted liquid container enclosing drinking water or other potable liquid. The cap has a lid portion to overlie and sealingly close the opening and an annular skirt portion extending axially away from the lid to surround a portion of the container neck. The lid portion is provided with an axially inwardly extending recess including an outer sleeve and an inner plug portion connected thereto. An upstanding probe or feed tube is dimensioned for forcible insertion into the recess for separating the plug portion from the sleeve to permit the discharge of liquid from the container. A removable mounting apparatus is also provided to fit on the upper portion of a water cooler cabinet and defines an annular ring for supporting the shoulder of an inverted bottle or container thereon.

Abstract: A two-piece hygienic cap to close the neck opening of an inverted liquid container has a lid portion to overlie and sealingly close the container opening and an annular skirt portion extending axially away from the lid to surround a portion of the container neck. The lid portion is provided with an axially inwardly extending recess including an outer sleeve and an inner plug portion connected thereto. The cap is adapted to cooperate with a feed tube or probe dimensioned for insertion into the recess for separating the plug portion from the sleeve to permit the discharge of liquid from the container. When the tube or probe is withdrawn from the recess, the plug portion is drawn into the sleeve to close the recess and reseal the container. The tearable skirt of the cap includes a line of weakness and a pull tab permitting easy removal of the cap from the container.

Abstract: A valve for use in a pipette gun for selectively providing different ranges of flow rates through a pipette cooperating with the pipette gun. The valve has a predetermined number of discrete settings, each of which provides a range of fluid flow rates between zero and a different maximum flow rate. The operator controls the flow rate by depressing the gun trigger a selected distance. To change the flow rate setting, the operator simply rotates the gun trigger to a desired setting. The present valve also eliminates the "piston effect" of prior art valve elements by isolating the pipette chamber while the valve element operably slides in and out of engagement with a port thereby connecting the pipette with a fluid source either under pressure or at a vacuum.

Abstract: A method and system for transfer of fluids, such as paint, using a fluid canister carried by a transfer device, such as a robot, instead of having paint lines connected to a delivery device, such as a spray gun, carried by the robot. A novel mechanism for initially docking and then filling the canister from a fluid outlet of a pressurized source of fluid without straining the robot is provided. Also, a novel mechanism for cleaning the canister between canister fillings is provided so that paint colors can be changed without loss of productive robot time. In one embodiment, the canister is integrated with the robot. Also, a novel, non-contact sensor is provided for providing a signal to allow the metering of the paint entering or/and discharged from the canister.

Abstract: A syringe filling and metering device (2, 90) for pharmaceutical containers (4) including a variable volume region housing the liquid pharmaceutical (78) and a needle access portion, such as a septum (74) or piston (104), which is pierced by the needle cannula (72) of the syringe (6), such as by mounting the syringe in a syringe carrier (8). An elongate piston stop (58) is held in place by a piston driver (42) to which the syringe carrier is threadably connected. The syringe carrier is screwed into the piston driver to drive the barrel of the cartridge over the piston, thus forcing the contents of the cartridge through the needle cannula and into the syringe. The invention can also be practiced with the needle cannula piercing the piston so that the movement of the piston into the barrel of the container forces the liquid pharmaceutical through the needle cannula and into the syringe.

Abstract: A hygienic liquid dispensing system includes a removable mounting apparatus adapted to fit on the upper portion of a water cooler cabinet and to define an annular ring for supporting the shoulder of an inverted bottle or container thereon. The mounting apparatus also defines a tapered entry portion having a closed inner wall extending downwardly and inwardly from the annular ring for receiving the neck of the inverted container therein. The container neck opening is closed by a cap having a lid portion to overlie and sealingly close the opening and an annular skirt portion extending axially away from the lid to surround a portion of the container neck. The lid portion is provided with an axially inwardly extending recess including an outer sleeve and an inner plug portion connected thereto.

Abstract: A one-piece hygienic cap to close the neck opening of an inverted liquid container has a lid portion to overlie and sealingly close the container opening and an annular skirt portion extending axially away from the lid to surround a portion of the container neck. The lid portion is provided with an axially inwardly extending recess including an outer sleeve and an inner plug portion integrally formed with a frangible connection therebetween. The cap cooperates with a probe dimensioned for insertion into the recess for breaking the frangible connection and separating the plug portion from the sleeve to permit the discharge of liquid from the container. When the probe is withdrawn from the recess, the plug portion is drawn into the sleeve to close the recess and reseal the container.

Abstract: A portable spray system is provided with a plurality of storage containers for receipt and storage of pressurized water from a residential water tap. A manifold connects the storage containers to a segment of hose. The opposite end of the hose is connected to a standard spray nozzle which includes a trigger handle and a threaded discharge end. The water stored in the portable containers and the pressure to pressurize the system are received simultaneously from a standard residential water tap. The only component required for filling and pressurizing the containers is a short filling hose segment having a threaded female connector at each end. To prepare the water spray system for operation, one end of the filling hose is connected to a water tap and the other end of the filling hose is connected to the threaded discharge end of the spray nozzle. The spray nozzle is opened and the water tap is turned on which permits water to flow into the storage bottles. The bottles are filled with water under pressure.

Abstract: Apparatus and method for filling motorcycle front forks comprising, a horizontally planar platform for positioning proximate a motorcycle front fork. Mounted upon the platform are a tubular, vertically adjustable dipstick, a hand pump and a reservoir. The dipstick is vertically adjusted to the correct level of fork fluid in the reservoir. The front fork is then overfilled with fork fluid. Excess fork fluid is then pumped out of the fork by the hand pump into the reservoir. Flow of fork fluid automatically ceases when the correct level of fork fluid is attained because the end of the dipstick will then be above the level of fork fluid in the motorcycle front fork.

Abstract: A unitary one-piece needle-guide and bottle-holder device in which one portion of the device is adapted to securely yet removably receive a portion of a bottle or vial such that a central area of the needle-penetratable cap on the bottle is exposed to a needle-guide channel which in turn communicates with a needle guide for guiding a syringe to an abutment therein which allows constant or same-depth penetration of the needle into a vial every time the guide device is used and without risk or harm to the user.

Abstract: A closed granular chemical handling system comprising a dispensing valve and a receiving valve. The dispensing valve and the receiving valve are automatically opened when the valves are coupled together, and are automatically closed when the valves are uncoupled from one another. The valves are configured so that the receiving valve always is the first to open and the last to close. The valves are driven together by a camming structure having a neutral portion that acts as a delay between the opening and closing of both valves so as to allow granular material to flow from between the valves through the receiving valve.

Abstract: A hygienic liquid dispensing system includes a cap to close the opening of an inverted liquid container enclosing drinking water or other potable liquid. The cap has a lid portion to overlie and sealingly close the opening and an annular skirt portion extending axially away from the lid to surround a portion of the container neck. The lid portion is provided with an axially inwardly extending recess including an outer sleeve and an inner plug portion integrally formed with a frangible connection therebetween. A feed tube is dimensioned for forcible insertion into the recess for breaking the frangible connection and separating the plug portion from the sleeve to permit the discharge of liquid from the container. A mounting apparatus is also provided to fit on the upper portion of a water cooler cabinet and defines an annular ring for supporting the shoulder of an inverted bottle or container thereon.

Abstract: Some paste or liquid products, used as cosmetics and medicines, for example, have to be protected from contact with air. Methods have been developed for vacuum packaging them. These methods are more concerned with eliminating air that may remain in the packaging filled with the product at the time the latter is closed (by welding, by sealed fixing of a dispensing valve, etc). No special precautions are taken during filling of the packaging which is carried out in air and inevitably causes unwanted air bubbles to be trapped. The present method avoids any inclusion of air in the product. The packaging, which consists of a variable volume reservoir, is filled while in its maximum content configuration in an hermetically sealed enclosure that is evacuated. The enclosure is formed by a bucket receiving the reservoir and to which a bell fits in a sealed way. The bell is connected to a system of vacuum pumps and to a store of the product.

Abstract: A universal medication port includes a cylindrical member having an internal bore with a plurality of radial passageways extending therefrom. A plunger is disposed within the internal bore of the cylinder, the plunger having an internal bore with a plurality of radial passageways extending therefrom. The plunger is movable in response to insertion of a needle-less hypodermic syringe into the internal bore of the cylindrical member so as to align the respective passageways in the plunger and the cylindrical member with one another to establish a fluid path from the syringe through the internal bore of the plunger and respective passageways in the plunger and the cylindrical member to a receptacle, such as a vial, an intravenous bottle or intravenous delivery system, in which the cylindrical member is inserted.

Abstract: An improved pesticide application utilizes a relatively large replenishment tank to store several working days requirements of pesticide solution at a relatively high pressure head. Both solution and pressure head, portions thereof, are transferred to a portable, working cylinder from the replenishment tank. Because a pressure head is directly transferred from the replenishment tank to the portable cylinder, rather than creating a pressure head within the cylinder solely by the transfer of solution under pressure to the cylinder, the pressure head within the portable cylinder is maintained for a significant working period. The improved pesticide application system requires the handling of concentrated pesticides and water only once every several days, rather than 3 or 4 times a day. No manual hand pumping is required to maintain a pressure head within the portable cylinder.

Abstract: A needle-shielding fluid transfer device for safely transferring fluid from a needle-bearing medical device to a separate container. The device includes a housing having a passage therethrough. At one end section of the housing, the passage has a relatively large diameter and the housing is adapted to easily accept and hold the needle-bearing medical device from which fluid is to be transferred. At a second end section, the housing is adapted to accept the container into which fluid is to be transferred. When a needle-bearing medical device is inserted into the passage at the first end section of the passage and a container is inserted into the second end section of the housing the needle of the needle-bearing medical device enters the container and fluid may be transferred. In one embodiment, the housing is split into two housing components to form a clamshell-like structure.

Abstract: A water dispensing apparatus has a locator for retaining a container in vertical alignment with a discharge tube to allow water to be directed into the container. The locator has a movable carriage which is vertically guided by an upright track. The carriage is moved to actuate a switch and allow a second manually operated switch to be actuated to commence the water dispensing cycle. A solenoid is energized to open a valve whereby water flows from the tube into the container.

Abstract: A closed granular chemical handling system comprising a dispensing valve and a receiving valve. The dispensing valve and the receiving valve are automatically opened when the valves are coupled together, and are automatically closed when the valves are uncoupled from one another. The valves are configured so that the receiving valve always is the first to open and the last to close. The valves are driven together by a camming structure having a neutral portion that acts as a delay between the opening and closing of both valves so as to allow granular material to flow from between the valves through the receiving valve.

Abstract: There is provided by this invention an apparatus for injecting resin which provides a sealed injection position for uniform injection pressure on the resin and allows the depth of the injection needle to the controlled so that even minute delaminations, cracks, and voids in composite structures may be filled. The filling resin is contained in a syringe which is held in an injector frame. The syringe's needle protrudes from the nosepiece which is threadably engaged in the injector frame so that by further rotation of the nosepiece the depth of injection may be altered. Air lines and inlet ports are provided to urge the plunger of the syringe forward so as to eject resin into the composite structure, as well as to provide an improved seal about the injection position at the surface of the composite structure.

Abstract: A combined pneumatic and manual grease dispensing system comprises a manually operated fluid pump that draws lubricant from a source and delivers the lubricant at a first fluid pressure, and a pneumatically operated lubricant dispensing gun that receives the lubricant supplied by the manual pump at the first pressure and receives a supply of compressed air from a compressed air source, and dispenses the lubricant received at a second pressure substantially increased from the first pressure at which the lubricant is supplied to the gun.

Abstract: A closed granular chemical handling system comprising a dispensing valve and a receiving valve. The dispensing valve and the receiving valve are automatically opened when the valves are coupled together, and are automatically closed when the valves are uncoupled from one another. The valves are configured so that the receiving valve always is the first to open and the last to close. The valves are driven together by a camming structure having a neutral portion that acts as a delay between the opening and closing of both values so as to allow granular material to flow from between the valves through the receiving valve.

Abstract: A fluid dispensing system comprises a first linearly translatable plate and a second linearly translatable plate mounted below the first plate at 90 degrees relative thereto, the first plate being displaceable in one direction and the second plate being displaceable in another direction, said dispenser including an overhead fluid dispenser for dispensing calibrated amounts of fluid into each well of a multi-welled dish wherein the wells are spaced apart in rows and columns.

Abstract: A shut-off valve for use with high pressure gas cylinders is disclosed which is adapted to automatically retain a residual pressure in the cylinder. The valve includes a check plug axially moveable within the housing which has a hard sealing surface, for establishing high pressure seals and a soft sealing surface for establishing low pressure seals. The plug is spring-biased into the closed position with force selected so that it automatically closes and seals the interior of the cylinder once the gas pressure in the cylinder drops to or below a predetermined threshold pressure.

Abstract: It is advantageous for a substance in the form of a liquid or a paste to be packaged under pressure and in the absence of any air inside a receptacle (1) which is hermetically closed by a valve (2) for the purpose of dispensing the substance. A convenient way of putting the substance under pressure therefore consists in using a resilient receptacle (1) which is prior deformed so that its walls (10) seek to return to their natural shape (in dashed lines) and exert a force on the substance. The present invention uses mechanical means for imparting said deformation. As a result, the receptacle (1) can be filled with substance at atmospheric pressure. The receptacle is constituted by a single envelope whose shape is of an appearance suitable for the market for this type of dispenser and is adapted to easy manipulation in the hand. Finally, if the dispenser is provided with a precompression pump type valve (2) up to 95% of the substance initially contained in the receptacle (1) can be dispensed.

Abstract: A system for delivering liquid catalyst to a core-making machine includes a single fireproof cabinet in which is located a catalyst storage tank. The storage tank receives catalyst from catalyst supply drums that are positioned one at a time in a pumping station located in the cabinet beside the tank and emptied into the tank by a barrel pump. A flash-off station is located in the cabinet beside the pumping station for receiving emptied drums and an exhaust hose, that is coupled to a scrubber system exhaust duct, is positionable within the drum to carry away vapors produced in the drum as residual catalyst flashes off. A catalyst supply pump is coupled for pumping liquid catalyst from the storage tank to a gassing unit of a core-making machine.

Abstract: Apparatus for formulating pasty materials comprising a set of supply containers each containing a pasty material and each having an extrusion nozzle. A receiving tube is adapted to fit on each extrusion nozzle. An element is included for stimating the amount of material extruded from a selected container of the set into the receiving tube when the tube is fitted on one of the extrusion nozzles. The receiving tube is of flexible material to allow pasty material extruded into the tube to be ejected from the tube by application of a traveling pinching action along the tube. The apparatus may include a container for the receipt of such ejected material and an element for stirring or mixing to homogeneity material in the container.

Abstract: A shut-off valve for use with high pressure gas cylinders is disclosed which is adapted to automatically retain a residual pressure in the cylinder. The valve includes a check plug axially moveable within the housing which has a hard sealing surface, for establishing high pressure seals and a soft sealing surface for establishing low pressure seals. The plug is spring-biased into the closed position with force selected so that it automatically closes and seals the interior of the cylinder once the gas pressure in the cylinder drops to or below a predetermined threshold pressure.

Abstract: A pneumatic action dispenser for filling bottles with soda and carbon dioxide according to alternate mixing sequences, where each bottle has a normally closed closure valve in its neck, said dispenser being engageable with the neck of the bottle and provided with a pneumatically and coaxially activated mobile body which contains another body mobile with respect to the other, said second mobile body having a mouthpiece engageable with the bottle which is provided with a central opening for a member capable of opening the valvular closure of the bottle and which is in communication with an inlet and/or outlet connector for carbon dioxide and soda. The main pneumatically activated mobile body includes a member for opening the valvular closure of the bottle, the activation of which opens a closure valve within the dispenser between the main and second mobile bodies in the communication line for the fluid feed.

Abstract: Loader-mixer device for endermic injectors which is suitable to cooperate with a portable endermic injector momentarily in loading, by aspiration through an injection-aspiration nozzle included in an injection head (17) of the portable endermic injector, the product to be injected, the device comprising in cooperation:at least one seating to lodge and position phials (12) together with two needles (13-14),a socket (31) to position the injection head (17), anda selector assembly (20) to connect a phial (12) to the injection head (17) as required.

Abstract: Process and device for filling packaging containers, in particular tubular bags or similar packages, with doses having a predetermined weight of a fluid, powdery or finely granulated filling material, with the filling material being gravimetrically introduced into the packaging containers such that the predetermined amount of filling material to be introduced into the packaging container is fed by means of a speed-controlled metering screw at intervals, gravimetrically regulated, from a first filling material supply, and a measured amount of the filling material more or less equivalent to the amount dispensed is subsequently fed from a second filling material supply to the first filling material supply within a time corresponding to the stop period of the packing machine.

Abstract: A vessel for receiving fluid includes a flexible part having a closed end and an opening at its opposite end, and a rigid protective cover, the edges of the opening in the flexible part being attached to the rigid cover in a manner such that the inside of the flexible part and the inside of the cover define a closed interior space, the flexible part being capable of being drawn up against the inside of the protective cover upon evacuation of the interior space whereby the flexible part is received within the protective cover. A connection member is provided on the outside of the protective cover, the connection member having a bore therethrough and a perforatable, resilient, self-sealing membrane extending across the bore, through which membrane a puncturing member may be inserted for removing material from or adding material to the interior space.

Abstract: A valve assembly (52) has a valve housing (64) which fits in neck (76) of container (50). Valve member (88) is slidably movable in housing (64). Housing (64) has a plurality of grooves (86) and apertures (80), which interact with flanges (92, 94, 96) to define flow paths in the valve assembly (52). The flanges (92, 94, 96), inside surface (84), apertures (80), slots (86) and valve member (88) provide a flow path through the valve assembly (52) when the valve member (88) is in its downward position inside housing (64) and seal the flow path when the valve member (88) is in its upward position. A spring (102) urges the valve member (88) to its upward position.

Abstract: Oxygen generator for cartridges, having a pressure tank and a cartridge holder connected thereto. The cartridge holder is divided by a gas-tight separable joint into two halves, and its interior is in communication through an opening with the interior of the pressure tank. To maintain functionality over a long period of time, the bottom half of the cartridge holder is joined to the pressure tank with good thermal conductivity in the area of the separable joint and is in communication with the pressure tank through an unplugged opening which is narrow in proportion to the inside cross section of the lower half. Further, the upper half of the cartridge holder is superimposed on the bottom half directly at the top of the pressure tank and is provided with a cooling structure.

Abstract: Inert gas is supplied to a closed reagent reservoir for reagent dosing in producing gaseous measuring samples according to the "hydride method". Thereby, reagent is pressed into a sample vessel through a reagent dosing conduit. A manometric switch is provided at the inert gas connecting conduit to produce a defined reagent flow, by means of which manometric switch a valve located in the connecting conduit is driven into its closed position, if a preset pressure has been reached.

Abstract: A fluid container and dispenser including an elastomeric reservoir and a dispensing tube connected thereto and a valve to either allow or inhibit fluid flow into or out of the reservoir. One embodiment includes an elongate tube with a hole in one side and an elastomeric sleeve surrounding a portion of the tube. A sliding valve element is mounted in the tube to close the hole. The valve element is mounted on a second, smaller tube which slides within the first-mentioned tube. The sleeve is filled by sliding the valve element away from the hole and injecting fluid under pressure into the sleeve to expand it. The valve then is slid to its closed position. The combined first-mentioned and second tubes together form a straw to withdraw fluid from a secondary container into which fluid may be dispensed.

Abstract: A filling valve for filling compressed gas into gas containers or tubes, comprising an inlet (11) to the valve housing (10), an outlet (12) for connection to the container or tube, an outlet for venting air and a connected channel, in which a spring loaded cone (37) of a high pressure valve is actuated to closing or opening by a displaceable spindle, which is moved by a lever (16) actuated by hand to actuate, via an operating piston (22), the spindle to arrive into three different positions, which allow shut-off, opening and venting, respectively, of the filling valve.

Abstract: A combined manual and pressure-responsive shut-off valve, intended particularly for use with high pressure gas cylinders, is disclosed. The valve includes a single seat and a single plug, the plug having a first sealing surface for closing against a low residual pressure in the cylinder and a second sealing surface for closing against a relatively high cylinder pressure. A pressure-responsive actuator engages the first sealing surface against the seat whenever pressure in the cylinder falls below a predetermined minimum. A manual actuator engages the second sealing surface against the valve seat to close against a wide range of pressures. The seat is specifically configured to conform to the plug. Means are provided for refilling the cylinder without removing the combined valve. In one embodiment, a special tool is provided for opening the pressure-responsive actuator. In a second embodiment, a bypass check valve is provided to allow gas to flow into the cylinder.