Abstract: A dispenser (50) for flavoring concentrate is adapted to be attached to an open mouthed beverage vessel (10). The dispenser (60) comprises a reservoir (51), a manually operable pump (52) and a storage chamber (60). The reservoir is arranged to contain concentrate, and the pump is coupled to the reservoir to dispense a measured quantity of concentrate to the storage chamber. The dispenser is adapted to be secured across the mouth of the vessel so that tilting of the vessel ensures escape of the concentrate from the storage chamber prior to escape of the beverage within the vessel.

Abstract: A liquid supply system with a pump for discharging fixed amounts of liquid composed of a liquid supply vessel which holds a liquid therein; a cylinder device composed of a cylinder cover and a cylinder with a bottom portion having a piston hole, a first liquid suction hole with a liquid suction valve and a second liquid suction hole; a piston device which is slidably disposed within the cylinder, including a piston with a liquid suction inlet and a liquid inlet valve, and a valve-pressing member, a piston cover provided above the piston to form an inner space therebetween to hold the liquid therein, a piston shaft which, in a sealed state, passes through the piston hole formed in the bottom portion of the cylinder, and is integrally connected with the piston in such a manner as to slidably move the piston device along the inner side of the cylinder when pressed upward or downward, the piston shaft including herein a liquid discharge conduit which is connected to the inner space of the piston device and from w

Abstract: A spray or dispensing bottle is preferably blow molded from plastic material which is squeezable, with a sufficient plastic memory to cause the plastic to return to its original shape after it is squeezed and relaxed. The bottle includes an integral tube which extends from the bottom of the bottle, upwardly to the top of the bottle. Along the route of this tube, an aneurism or bladder is formed to receive and hold fluid which is sucked up the tube when the bladder is squeezed. Check valves are provided for opening and closing the fluid path from the bottle to the bladder and out of a nozzle. Thus, the bladder may be repeatedly pressed to create a vacuum, causing it to fill, or if squeezed when full, to spray the fluid out of the bottle. In one embodiment, a lever arm is positioned over the bladder in order to increase the mechanical advantage and relieve the stress which results if fingers must be used to squeeze the bladder.

Abstract: The invention relates to a manually operated pump able to dispense liquid or creamy substances at a predetermined constant pressure. The pump comprises a hollow main body carrying a dip tube and fixable to the mouth of a container containing the substance to be dispensed. The cavity of the main body houses a movable piston and a stem which are sealedly connected together. The piston is sealedly slidable along a cylindrical surface of the main body and is urged by a spring which maintains the stem thrust against a stop on the main body, with a stem appendix projecting to the outside. Between the stem and the piston a chamber is defined which houses in a sealedly mobile manner a valving member which is urged by a spring against an annular ridge projecting from the opposing surface of the piston. The two springs are isolated from the path taken by the substance to be dispensed, and the delivery pressure of the substance can be easily predetermined.

Abstract: A DC-motor-driven whisk blends soap remnants with water until creamy. The blending is done in a translucent housing over the motor where the shaft of the motor rotates the whisk. The soap cream is dispensed through a pump dispenser that extends into the housing. The whisk has two differently-shaped arms for more efficient blending and to avoid interfering with the pump dispenser. Water and soap are added through holes in the top of the housing that also enable soap fragrances to vent into the vicinity of the device.

Abstract: A dispensing container for storing and dispensing liquid such as perfume, medicine and the like is disclosed. The dispensing container contains a reservoir for the liquid, a pump for dispensing the liquid and a sealing collar for sealing the pump with respect to the reservoir.

Abstract: A welding fuel tank has a magnet 3 disposed on the inside or outside thereof in the vicinity of a fuel pump 12 which is housed inside the fuel tank. The magnet collects magnetic spatter which remains inside the fuel tank after welding and prevents the spatter from entering the fuel pump. The magnet may be a permanent magnet or an electromagnet, and it may be disposed outside the pump or in the fuel filter of the fuel pump. A cleaning method for a welded fuel tank comprises introducing a magnet into a fuel tank after welding, vibrating the fuel tank so that the magnet will move about the inside of the fuel tank and collect magnetic spatter, and then removing the magnet and spatter from the fuel tank.

Abstract: A cylindrical pump body is axially disposed in a container and has an annular shoulder sealingly abutting an outer end of the container neck opening. The wall of the pump body is press fit against the interior wall of the container neck. A cylindrical sleeve is telescopingly press fit within an outer end portion of the pump body and has an annular collar sealingly abutting the pump body shoulder. The press fit between these components as well as their abutting annular sections ensures securement of the components within the container as well as the sealing of container contents therein without the use of threaded closures of gaskets.

Abstract: The device of the invention dispenses a liquid, such as detergent or softener, into a clothes washing machine. The device includes two components: a container and a nozzle assembly. The container holds a quantity of liquid and a vane pump. The pump pumps the liquid through a conduit to the nozzle assembly. An anti-siphon tube is located in a hole in the conduit, within the container, but above the level of the liquid. When the pump is shut off, the anti-siphon tube prevents the creation of a siphon effect within the conduit. The nozzle assembly includes a nozzle housing, a hose from the container to the nozzle housing, and a nozzle to direct the liquid into the tub of the washing machine.

Abstract: A developing device incorporated in a copier for supplying a toner from a toner container to a reservoir to feed a toner-containing liquid developer to a developing unit. A developer feeding mechanism is disposed in the reservoir for feeding the toner-containing liquid developer to the developing unit. The liquid developer is circulated from and to the developing feeding mechanism along a circulation path. A discharging device for discharging the toner has an outlet which is open to the circulation path.

Abstract: This invention relates to reusable and re-collapsible containers, and particularly to a one-piece container having a peripheral side wall which is arranged to include areas of differential wall thickness and diameter to thereby permit collapse of the container from an extended to a collapsed condition by reason of a telescoping relationship between the various portions of the peripheral side wall. The container is provided with a closure incorporating a low profile spray head which is substantially nested within the container when the container is collapsed.

Abstract: A pump for use with containers with differential and transmission oil includes an adjustable collar for attachment to the containers, and a length adjustable casing to facilitate oil removal from the bottoms of the containers. The pump is manually operated and includes a flexible tube for delivery of the oil to a desired location. A bell-shaped adjustable collar facilitates an attachment of the pump to the top of the container, and an overflow line having a sight gauge can be used to determine when no more oil should be pumped to the receiving structure. Small baffles may also be provided interiorly of the pump casing to prevent solid residue and particles from being pumped into the differential or transmission of a vehicle. In a modified embodiment, the baffles comprise thin magnetized plates so as to be particularly effective in capturing ferromagnetic particles.

Abstract: This invention relates to a liquid jet blower that operates as an aerosol sprayer without using any pressurized gas. This invention is intended to provide a liquid jet blower which is free from clogging of the nozzle and undesired flows of the liquid outside its container. To that end, structure is provided for relieving any excessive pressure within its pressure chamber and transferring any remaining liquid to a small chamber specifically arranged within the blower.

Abstract: A substantially modularized countertop mounted liquid soap dispensing system, including a delivery module comprised of a housing, a frame, a delivery spout and an actuator channel through this frame. Residing in the actuator channel is an actuator rod assembly. The lower portion of the actuator rod assembly is free. Attached to the lower portion of the frame is a canister top adapted to engage a canister for enclosing a disposable liquid soap reservoir module. The liquid soap reservoir module is substantially completely enclosed such that the liquid soap within is not exposed to the atmosphere until it is pumped from the module. The disposable reservoir module includes an enclosing top section, a lower cap and a pump affixed to the lower cap. There is a guide cylinder extending from the enclosing top section to the pump for receipt of the free end of the piston rod assembly. A flexible tube extends from the pump and is easily inserted into and withdrawn from the delivery spout.

Abstract: A washer pump for sending, to a nozzle under pressure, cleaning liquid introduced thereinto from an inlet thereof provided in the interior of a washer tank and discharged from an outlet thereof is designed to allow an individual to determine the level of cleaning liquid in the washer tank. The washer pump includes: a cylindrical peripheral wall formed by extending the peripheral wall of the inlet upward so that the upper end of the cylindrical peripheral wall serves as the opening thereof; and a flow passage serving as a through-hole provided on the cylindrical peripheral wall at a lower portion thereof. Preferably, the through-hole is provided on the cylindrical peripheral wall such that the height of the through-hole is almost the same as that of the inlet or below the inlet. The through-hole may consist of a groove vertically extending in the direction from the upper end of the cylindrical peripheral wall toward a lower portion thereof.

Abstract: A lower end of a first hollow cylinder is connected to an upper end of a second hollow cylinder. A first outer hollow stem has an intermediately disposed first external enlargement disposed within the first cylinder. A hollow vertical main piston is vertically slidable within the first cylinder. A second inner stem extends upwardly through the main piston and through a bore in the first stem. A space between an upper section of the second stem and the first stem defines a vertical fluid discharge path. An upper end of an integral lower vertical section of the second stem engages the lower end of the main piston so that a horizontal channel extends between the lower section and the lower end of the main piston and connects the region between the lower section and the inner wall of the first cylinder to the fluid discharge path. A fluid discharge port is formed between the upper ends of the first section and the inner stem.

Abstract: A dispensing pump having a minimal number of molded plastic components is configured to have a relatively low. profile when mounted on a spray container. The pump includes a base having a chamber depending downwardly therefrom within which is received a piston biased by a spring. The piston has a piston rod which extends upwardly through the base for coupling with one leg of a L-shaped handle pivoted on the base. Upon squeezing the handle, the handle rotates to lift the piston to pressurize liquid in the container. The liquid is dispensed laterally of the base through a valve body which includes a rotatable valve element seated therein. The rotatable valve element rotates about an axis perpendicular to the valve body and includes both an opening for releasing a stream of liquid from the pump and an opening for releasing a spray of liquid from the pump. In order to refill the chamber with liquid from the container, a dip tube extends from the base and is in communication with the chamber.

Abstract: An atomizing pump for dispensing liquids from a container which has a low profile and is non-throttling. The pump comprises a body, a spring biased piston, a lower valve openable and closable by both pressure in the pump body and by frictional interengagement with the pump piston with an extending upper end of the lower valve, and an upper valve that frictionally and sealingly fits in a lower chamber in the piston, but which can be moved against a spring force and the friction force when pressure in the pump reaches a critical limit, so that the upper valve moves into a larger upper chamber so that liquid can escape from the pump body. The upper valve preferably has an extending stem that contacts the extending upper end of the lower valve during the terminal portion of a downward stroke of the piston and an initial portion of an upward stroke of the piston so that the upper valve can be held open.

Abstract: A precompression metering pump has already been mounted on a pressurized receptacle in the prior art. It serves not only to propel the contents of the receptacle for spraying purposes, but also to isolate said contents from ambient air in order to prevent it being degraded. However, in the past such a pump has been provided with a return spring capable of raising the pistons of the pump to a rest position regardless of the pressure inside the receptacle. Consequently, should a leak arise from the receptacle, there has been a danger of delivering a substance that has been degraded by contact with the atmosphere. The present invention avoids this problem by making spraying impossible should the pressure inside the receptacle fall below a predetermined pressure which is advantageously chosen to lie in the range 1 bar to 2 bars above atmospheric pressure.

Abstract: Product admission into the working chamber 23 of a precompression pump is accelerated by providing a differential piston 4 with a bore 63 which establishes communication between the inside of a skirt 42 and a shoulder 44. A cylindrical sealing element 60 is fitted over a spindle 41 to be applied against the shoulder 44, level with two annular contacts 64, 65 between which the bore terminates. The sealing element closes the bore on discharge of the precompressed product dose. The sealing element is configured such that, particularly when the pump is idle, it is kept deformed and is therefore applied to the shoulder 44 with sufficient force to guarantee the seal of the two annular contacts 64, 65.

Abstract: An apparatus for applying a flowable material, such as a pizza sauce, onto an object, such as a pizza shell, is disclosed. The apparatus comprises a source of the flowable material having a source outlet port and a chamber having an chamber inlet port and a chamber outlet port. The apparatus further includes a piston and cylinder for moving the flowable material from the source to the chamber and a flow control gate disposed at the chamber outlet port. The apparatus further includes an arm responsive to actuation of the piston for opening the flow control gate, thereby permitting a substantially uniform application of the flowable material onto the object.

Abstract: The lower end of a first hollow vertical cylinder curves inwardly to merge with the upper end of a lower second cylinder. A hollow vertical piston extends through a top opening of the first cylinder into the first cylinder and is vertically movable therein with a lower end of the piston slidably engaging the inner surface of the first cylinder. A vertical member has upper and lower integral sections, the lower section being enlarged with respect to the upper portion, the upper section being engagable or disengagable with the upper end of the piston to define a first closed or open port therewith. A third vertical hollow cylinder has a lower end in continuous fluid sealing engagement with the inner surface of the second cylinder. An upper end of the third cylinder is engagable or disengagable with the lower section to define a second closed or open port therewith. The first port is open when the second port is closed and vice versa.

Abstract: A trigger-type device for operating a pump of the axial displacement piston type against a bias spring, sprays liquids out of a handheld container. The pump has a delivery head which is movable axially with the piston and provided with a delivery conduit set at an angle to the displacement axis of the piston and lying in the same plane where the angular movement of the trigger lever takes place. The device includes a rocker lever which converts the angular movement of the trigger lever into a corresponding axial displacement of the delivery head to thereby drive the pump piston against the bias spring and produce the spray.

Abstract: This invention is a small hand piston type pump design to pump small quanity of flammable liquids safely from a drum. The pump has a grounding clip, and a bonding clip attached and a metal bung adapter to ensure that static build up during the pumping process is adequately grounded from not only the pump but the vessel into which the liquid is being pumped and the drum. The pump also contains a flame arrestor in the spout and a check ball and a strainer in the pickup tube to ensure that a fire within the pump will not extend into the drum and a strainer in the pickup tube to further arrest any flames. The pump is made out of carbon steel, glass and teflon so that the parts have good chemical resitance and are long lasting. The pump has a sealing device design for longjevity. This sealing device has a packing gland whose edges are beveled. It fits into a conically channel between the packing head and packing nut and when the packing nut is tighten the packing gland is forced towards the shaft.

Abstract: A manually operated dispensing pump is provided for delivering a precise quantity of ophthalmic solution to the surface of the eye in a desired spray pattern with an impact pressure on the eye that is comfortably tolerable by an individual. The dispensing pump basically comprises a push button actuator having a nozzle member disposed therein, a cap member for receiving the push button actuator and having a control ring for selectively limiting the downward travel of the actuator, and a pump chamber engaged in the cap member and in communication with the push-button actuator for pressurizing a metered quantity of ophthalmic solution.

Abstract: In spraying equipment comprising a base, a tank mounted to the top of the base, and a manually operated pumping system transferring liquid from the tank to a compression chamber, the base, the seatings for the moving parts of the pumping system, and the ducts connecting the tank, pumping system and compression chamber are in a single block, and the pumping system comprises two identical piston pumps integral with the base, accommodated in respective recesses formed in the bottom of the tank at each side and operated in push-pull by a single hand lever hinged to the base; the compression chamber is insertable into the tank from above and secured to the base by its bottom end.

Abstract: The lower end of a first hollow vertical cylinder is connected to the upper end of a second vertical hollow cylinder of smaller diameter. A first outer hollow stem open at its ends has an intermediately disposed first external enlargement disposed below the top open end of the first cylinder. A hollow vertical main piston is vertically slidable within the first cylinder. A second inner stem has an upper vertical section which extends upwardly through the main piston and through a bore in the first stem. A vertical fluid discharge path is formed between the upper section and the first stem. An integral lower vertical section of the second stem engages the lower end of the main piston. A fluid discharge port is formed between the first section and the stem. A vertical inner piston is slidable in the second cylinder. A first spring normally biases the stems together, closing the discharge port. A second spring causes the discharge port to open during a selected point on the downstroke.

Abstract: In a hand-operable double-action metering and/or atomizing pump, comprising a pump body having a pump cylinder and a pump plunger mounted therein, the pump cylinder being provided with a downwardly directed tubular extension forming a transition to a suction tube, on the pump plunger an extension is formed in the axial direction of the pump and extends into the tubular extension. Arranged on the tubular extension is an encircling sealing lip which points in the direction towards the pump cylinder and bears sealingly on the pump plunger extension.

Abstract: A prior art precompression metering pump which incorporates a differential piston forming part of the pump chamber inlet valve and its outlet valve is difficult to prime, especially in the case of metering paste products. In the improved pump there is disposed between the differential piston and the main piston of the pump a collar consisting of a ring from which project substantially axial tongues which are slightly inwardly inclined and each provided with a head. The collar moves inside the pump body so that normal operation proceeds as if it were not present. To prime the pump, however, the user depresses the collar until it contacts a step on the pump body. The tongues then bend so that their heads, interposed between the two pistons, move the latter apart (by a wedging effect or by a lever arm effect, or by a combination of the two). This is followed by mechanical opening of the pump chamber outlet valve whereby the air initially contained in the pump chamber escapes to the exterior.

Abstract: The dispenser consists of a container which contains a portion of a paste-like material. The dispenser has an internal check valve and an internal spring for biasing the dispenser actuator. At the lower part of the container is a piston which moves upwardly as the paste-like material is dispensed from the container. This dispenser due to the flow of material can be adapted to put stripes onto the main paste-like material stream. In addition, the dispenser can be adapted to function as an atomizer. As an atomizer, a tube will extend downwardly from the pump head to the bottom of the container. Also, the discharge spout will have an atomizing orifice.

Abstract: A spray head for use with a receptacle containing a liquid which is maintained under pressure by a propellant gas, thereby enabling a product to be packaged so that it is protected from coming into contact with the air, the spray head being of the type comprising a manually-operated precompression pump which includes a pump chamber comprising first and second cylinders (11, 15) capable of engaging telescopically, the chamber being closed by relative displacement of the cylinders, said first cylinder being integral with the pump outlet valve and being provided at one of its end with a circular sealing lip (12) capable of engaging against and of sliding along the wall of the second cylinder, which second cylinder is in communication with the inside of the receptacle, the wall being provided at at least one of its ends with relief (18) such that when the sealing lip lies over the relief and the relief causes sealing to be broken, a passage is opened suitable for passing gas at a rate of flow which is sufficient

Abstract: A precompression pump for discharging a liquid in spray form has a first inner compression chamber formed within a pump body between a valve for closing an orifice through which liquid is withdrawn from a storage container and a discharge orifice through which the withdrawn liquid is expelled to a spray-discharge head. The volume of the first chamber is variable by means of a driving piston which is continuously urged by a first helical spring towards a position corresponding to the maximum volume. A second intermediate chamber is located between the first chamber and the discharge orifice, this orifice being shut-off by a needle-valve piston which forms the precompression system. The needle-valve piston is mounted within a moving element but outside the first chamber and urged by a second helical spring to a position of closure of the discharge orifice.

Abstract: A dispensing apparatus for bulk fluids, and a method associated therewith, is disclosed in which a bulk storage tank operates in association with a second tank of a smaller size, and which retains a fluid to be dispensed in a self-serve operation. Preferably, separate pumps are employed for feeding liquid from the bulk tank to the smaller reservoir, and from the reservoir through a nozzle to a receptacle, on demand. The apparatus of the present invention provides a system for dispensing fluids such as windshield washer at e.g., service stations, which can be used by a customer when it is desired to re-fill a vehicle windshield washer, without the problems associated with filling using larger containers.

Abstract: A manually actuated, pressure build-up pump sprayer that is to be interconnected with a container for atomizing and spraying a liquid from the container. The pump sprayer includes air-tight seals and valves which are opened and closed at different portions of the stroke cycle, such that trapped air may be quickly compressed and efficiently blown from the poppet into the container and liquid from the container drawn into the poppet and sprayed from the spray head. Thus, the sprayer may be easily primed after only a few stroke cycles. The sprayer is characterized by a relatively reduced number of parts and manufacturing cost as well as the ability to prevent leakage and allow spraying of the liquid in the event that the container is tipped or turned over.

Abstract: An atomizing fluid dispenser has a pump chamber defined by a hollow vertical region defined by adjacent portions of interconnected upper and lower cylinders, a vertical member and a piston. The chamber has a first fluid entry port and a second fluid discharge port. The second port is opened and the first port is closed during a downstroke and the first port is opened and the second port is closed during an upstroke. Both ports are closed during periods of non use.

Abstract: The assembly comprises a sealing collar and a mounting cup which is slidable through a path of movement over a container flange to an assembled position with the cavity retaining the sealing collar therein. The skirt has an inner sidewall that has a circumferentially extending groove formed therein for snappingly engaging the collar perimeter when the collar is inserted axially into the cavity, whereby the collar and pump body are lockingly retained in combination with the cup by the cooperation of the groove with the collar perimeter.

Abstract: A distributor body comprises a housing having a bottom, a lateral wall secured to the bottom and a top end opposite to the bottom, and a dome sealingly fixed to the top end. The dome is rigid and formed of a plastics material and comprises a central annular portion having a minimal thickness between 1.2 and 4 mm, an upper annular portion and a lower annular portion. The lower annular portion sealingly fixes the dome to the top portion by direct axial fitment. The upper annular portion is adapted for receiving a distribution means such as a valve or pump. The distributor body can be used to dispense materials in the areas of cosmetology, pharmaceuticals, hygiene and foodstuffs.

Abstract: A decompression device for suction pumps having a pumping chamber and a plunger formed with a resilient lower lip, which in the end-of-stroke position reaches a lower limit level and which comprises at least one protuberance in the surface of the pumping chamber extending on both sides of the lower limit level and determining a lower edge and an upper edge, between which at least one continuous slot extends.

Abstract: A dispensing pump for a fluid in a container, in which the component parts form two units which are functionally joined together by a coupling member, while being easily separable. The component parts of each unit are non-separably assembled together. The second unit includes a valve for communication with the container and is inseparably attached to the container and is further provided with a device restraining access to the valve, whereby this second unit acts as a seal for the container. The first unit comprises a cylinder, piston, actuator spring and a communication passage with the external environment and can be attached to successive second units.

Abstract: A fluid container with a removably attached dosage dispenser receptacle in which the container is provided with a pump for pumping up fluid to the receptacle in predetermined dosages. An opening in the receptacle is aligned with the pump outlet conduit so that fluid can be pumped directly through the outlet conduit to the receptacle in predetermined amounts, and the dispenser can be detached from the container for use when required.

Abstract: A liquid dispenser includes a plunger and an elongate barrel having a cylindrical bore which receives the plunger. The plunger includes an axial passage which delivers a volume of liquid as the plunger is depressed downwardly into the barrel. The volume of liquid delivered depends on the length of the downstroke of the plunger, and a mechanism is provided which allows the plunger to be rotated to limit the length of the downstroke to a predetermined percentage of total length. In this way, premeasured volumes of liquid may be delivered by the dispenser.

Abstract: An atomizing dispenser employs a vertical hollow elongated body with upper and lower ends and an orifice centered on the body axis and disposed between the upper and lower body ends. A hollow sleeve is disposed within the body with a relatively large open lower end and a relatively small open upper end and is vertically slidable. A vertically movable member has a lower enlarged section disposed within the sleeve and an upper section extending through the upper end of the sleeve. A vertically movable hollow piston has upper and lower open ends. The upper section of the member extends through the lower end of the piston into the piston interior; the lower end of the piston slidably engaging the inner surface of the upper body end.

Abstract: A reservoir in which fuel can be collected when only a small amount of fuel remains in the fuel tank, is arranged to support a fuel pump and to be connectable to the lower wall of the tank by a snap action type connector arrangement which is defined between a bracket fixed to the lower wall of the fuel tank and a portion of the reservoir which cooperates with the bracket. The reservoir containing the pump can be manually introduced into the interior of the fuel tank through an opening in the top thereof and maneuvered into engagement with the bracket. The center of gravity of the relatively heavy pump is arranged to be generally over the top of the bracket. When a predetermined strong force is applied to the reservoir in a predetermined manner it can disengage from the bracket.

Abstract: A finger operated pump dispenser employing interconnected upper and lower cylinders, first and second pistons disposed in the upper and lower cylinders, a hollow sleeve, and a stem which extends upwardly through the first piston into the sleeve. The first cylinder, the stem and the two pistons define a pump chamber which is filled with fluid. When the dispenser is actuated, fluid is displaced from the chamber into the second cylinder and a port is opened. The port can be made to open at the moment that all of the fluid is displaced into the second cylinder. Once the port is opened, the fluid is discharged and further piston movement enables fluid to be pulled upward out of the container secured to the dispenser via an opening formed between the second piston, stem and inner wall of the second cylinder refilling the chamber. The motions of pistons, stem and sleeve are so controlled that accurate dosage is produced independently of the method of actuation.

Abstract: The pump comprises: a main cylinder (24); a main plunger (12) urged by a first spring (62) and extended by a hollow stem (10) and having a valve seat therein; a secondary cylinder (52) comprised within the main cylinder (24); a secondary plunger (64) urged by a second spring (70) having an upper extension (66) and being provided with a cavity (72) which is closed in the proximity of the end (68) engageable with the valve seat; while it is open at the lower end thereof, maintaining communication with the space (54).

Abstract: A vertical hollow body has a first upper hollow vertical cylinder and a second lower hollow outer vertical cylinder. A third inner hollow vertical cylinder is disposed concentrically within and spaced from the second cylinder. The lower ends of the first and second cylinders are joined. The upper end of the third cylinder has an aperture. A hollow piston is vertically movable within the first cylinder. A vertical member has an upper section extending into the piston interior, an enlarged middle section and a fourth vertical hollow cylinder as an enlarged lower section. The fourth cylinder has an inner shoulder at its upper end. A spring is disposed between and bears against the joined lower ends and the shoulder. A pump chamber is defined by a hollow vertical region bounded by adjacent portions of the body, member and piston and has a first fluid entry port and a second fluid discharge port.

Abstract: A container for fluent material having a nozzle for dispensing the material with the nozzle being moved into dispensing position and also being actuated by a slidably mounted container cover. The container may be, for instance, a pressurized container for dispensing an aerosol product or a pump container equipped with, for example, a ball check valve for dispensing a fluent mass material.

Abstract: In a dispenser a manually operable thrust piston pump (2) has a presuction piston (11) located with a limited spacing within a pump piston (10) and which in the manner of a telescopic tube engages over a cylindrical, freely projecting chamber body (15) and consequently bounds a presuction chamber (17) constantly connected by a line to a container and whose length and volume are significantly greater than that of a pump chamber (20) surrounding presuction chamber (17). The two working pistons slideably guided on one another form valve closures of an outlet valve (23) controlled by pressure difference and which at the end of the pump travel and in addition to said control, can be mechanically opened by a dog (40) positionally variable by means of a compressible neck (29) for venting the pump chamber (14).

Abstract: A paint toning machine comprising a plurality of color paste containers (1), and a pump (2) for each color paste container (1) for pumping color paste from the container for the dispensing or circulation thereof. For the elimination of the problems caused by leaks occurring in the color paste dispensing pump and the connections of the color paste suction and feeding conduits thereof, the pump (2) according to the invention is arranged in the paste container (1) in the vicinity of a bottom (4) thereof essentially below the surface of the color paste (3) contained in the container.

Abstract: A device intended primarily for use in a shower stall that is adapted to dispense a predetermined total amount of a selected additive into a water stream, with the rate of mixing of the additive and water being controlled as a function of the water pressure. A positive displacement pump is used to dispense the additive from a storage chamber, and the additive is dispensed via a controllable applicator device.