Abstract: A powered dispensing tool includes a housing, a motor, a rack operably coupled to the motor for powered translation along a longitudinal axis in at least one of a forward direction and a reverse direction, a transmission housing at least partially positioned within the housing through which the rack is extendable, first and second plungers, at least one of which is coupled to one end of the rack, and a first cartridge housing within which first and second material cartridges may be supported in a side-by-side relationship. The first and second plungers are associated with the first and second material cartridges, respectively. The tool also includes a second cartridge housing within which only a single material cartridge may be supported. The first and second cartridge housings are interchangeably coupled to the transmission housing to adapt the tool for use with dual material cartridges or single material cartridges.

Abstract: The present invention relates to a drive mechanism for a spring assisted injection device configured for setting and expelling set doses of a drug. The drive mechanism comprises an assembly provided by a rotatable piston driver (6), a rotatable counter-element (15) and a spring device (19) tensioned between the piston driver (6) and the counter-element (15). During dose setting and during dose expelling the piston driver (6) and the counter-element (15) move relatively along an axis. A releasable interlock (6c, 15d) is provided for maintaining the piston driver (6) and the counter-element (15) in a fixed relative axial condition wherein the spring device (19) is in a tensioned state. The interlock provides for a simplified manufacturing process. The invention also relates to a method of assembling an injection device.

Abstract: The purpose of the present invention is to provide a rotary pipe-type linear feeder which enables a stable metered feed by the rotation of a pipe provided with a linear inner cylinder and outer cylinder. In this rotary pipe-type linear feeder (1), a motor-driven pipe (3) is connected to a pipe connection hole (2a), formed at the bottom of a hopper (2) in which a particulate/chopped food ingredient is stored, the food ingredient is fed from the hopper (2) through the interior of the pipe (3) as the pipe (3) rotates, and the food ingredient is supplied to a production line. The pipe (3) is provided with a linear inner cylinder (3a) and a linear outer cylinder (3b) which has a shorter overall length than the inner cylinder (3a) is slidably inserted into the outer cylinder (3b) with a high degree of precision.

Abstract: A storage or transport container for gasoline or similar hydraulic media, which tend to form explosive mixtures of air or gas and vapors. The container includes an electrically conductive plastic. The interior chamber of the container is substantially filled with an explosion-protection filling made of very highly thermally conductive material having a small displacement volume and a large surface.

Abstract: This specification describes technologies relating to a pump for dispensing precise quantities of fluids. In some implementations, a pump includes a rotatable portion including one or more recesses configured to receive one or more corresponding roller components; and a base portion including a fluid channel including an input aperture and an output aperture, the fluid channel being configured to receive the one or more roller components, and a flexible membrane that provides a seal between the roller components and the fluid channel, wherein, the rotatable portion is rotatably coupled to the base portion such that the fluid channel includes one or more portions sealed by the flexible membrane and one or more roller components and wherein rotation of the rotatable portion causes the one or more roller components to traverse the fluid channel pushing fluid trapped within the fluid channel and the membrane in the direction of rotation.

Abstract: A booster pump for a coffee beverage dispenser's water inlet source, in one example, a “city water” inlet. A chamber is formed which has the diluent/water inlet and a bottom surface and a top end covered by a removable lid. The removable lid has a hole large enough for a motor to be partially seated within the chamber and the motor has a shaft with supports that is connected to a cover plate that has through holes, and a rotor below the cover plate with a set of radially oriented vanes. The hole in the lid is bigger than the cross section of the cover plate and so the motor, shaft, supports, rotors and cover plate can be pulled out as desired for easier maintenance. When the motor is seated properly in the hole of the lid, the cover plate seats properly along the edge of a cylindrically shaped pump cavity. The cover plate and the edge form a seal. The inlet for the pump cavity has a smaller cross section than its outlet and the pump cavity can have a deflection body.

Abstract: The invention relates to a metering device for supplying devices such as, for example, extruders, injection molding machines or the like with bulk materials such as pellets, chips, granules, powders, flakes, grains, flour or the like, having a housing. It is demonstrated how an optimally smooth passage of such bulk materials through such a metering device is possible without there being any possibility of nests forming and throughflow being hindered in the feed channel.

Abstract: A system and method to facilitate the unloading of bulk materials from containment vessels and transport vehicles, including non-flowing DDGs in such vehicles, is disclosed. The system includes a compressed air system that further includes a motor, an air compressor, and an air reservoir; a hydraulic fluid system that further includes a motor, a hydraulic fluid reservoir, and a pump; a wireless control system; a slew drive; a hydraulically-powered, articulating boom arm that also includes hydraulic cylinders that remain in a plane parallel to the boom arm throughout operation of the system; and a blaster assembly with first and second ends that includes an air reservoir proximate the first end, a mount assembly, a discharge tube assembly, and a discharge tip assembly that includes a shooting valve proximate the second end.

Abstract: A metering and dispensing closure for a container wherein two rotatable disks rotate in conjunction with a stationary cap member to afford accurate measuring of a powder material and dispensing of it. The disks and the container cap afford a consistent measuring of the powder material, as well as provide a variety of drive members which can be utilized with the dispensing closure.

Abstract: A liquid pump creates a fountain type of dispenser for a container. The liquid pump includes a top portion, an elongated body and a bottom portion. The bottom portion at least partially includes an electric motor that is designed to draw fluid into the bottom portion when the electric motor is activated. The bottom portion is fluidly connected to the elongated body and the elongated body is fluidly connected to the top portion such that fluid that is drawn into the bottom portion is designed to flow out of the bottom portion and into the elongated body and then out of the elongated body and into the top portion.

Abstract: A device for dispensing a liquid is connectable to a container containing the liquid and detachably connectable to a base station having a drive member, the device including a liquid duct and a pump actuated by the drive member for effecting passage of liquid through the duct, characterized in that the device includes a cutter for piercing a tamper resistant foil positioned across the outlet of the container and that a push pin for actuating the cutter is operable from outside the device.

Abstract: A system includes a dispenser and a transmitter. The dispenser is configured to support and dispense product. The dispenser includes: a housing; an antenna disposed and configured to receive electromagnetic energy that originates from the transmitter; a power supply disposed within the housing and configured to convert the electromagnetic energy received at the antenna into DC (direct current) power; a dispenser mechanism configured and disposed to dispense the product from the dispenser on command; a controller disposed in operable communication with the power supply and the dispenser mechanism; and, an actuator disposed in operable communication with the controller. Upon actuation of the actuator, and upon presence of the DC power, the controller is responsive to facilitate action by the dispenser mechanism to dispense the product. The transmitter is configured to transmit electromagnetic energy and is disposed in operable communication with the dispenser.

Abstract: An electronic soap dispenser includes an upper dispensing head supported above a sink deck, and a liquid soap reservoir and a pump assembly supported below the sink deck. A capacitive sensor is operably coupled to the dispensing head. A controller is in electrical communication with the capacitive sensor and activates the pump assembly in response to input from the capacitive sensor.

Abstract: A system comprises an automatic mixing and dispensing device for a dental substance, and a material container. The mixing and dispensing device comprises a reservoir for receiving the dental substance, and first and second pressure plates. The material container has first and second material chambers for containing components of a material. The first and second material chambers have first and second cross-sectional chamber areas. At least one of the first and second cross-sectional chamber areas is smaller than smallest surface area of the first and second pressure plates. The system helps facilitating preparation and handling of dental materials.

Abstract: A powered dispensing tool includes a housing, a motor positioned within the housing, a rack coupled to the motor for powered translation in at least one of a forward direction and a reverse direction, and a transmission selectively coupling the motor and the rack. The transmission includes an input ring rotatable in response to rotation of the motor in a first direction corresponding with powered translation of the rack in the forward direction, a first clutch member engaged with the rack through an intermediate gear, and a second clutch member that receives torque from the input ring and that is movable in response to rotation of the motor in the first direction toward a first position engaging the first clutch member. The second clutch member is also movable in response to rotation of the motor in an opposite, second direction toward a second position disengaged from the first clutch member.

Abstract: A concentrate/extract cartridge for dispensing a liquid concentrate/extract is provided. The cartridge includes a hollow body and a dispensing tube that contains a pumping device. The cartridge includes a valve having a valve stem that passes through a port of a valve seat connected to the dispensing tube. A piston is located at a first end of the valve stem and a valve body is located at a second end of the valve stem in removable contact with the valve seat for alternately opening and closing the port. A liquid dispenser suitable for numerous applications and having a removably insertable concentrate/extract cartridge and a method of dispensing a liquid are also provided.

Abstract: An electric soap dispenser is provided with a housing; a cover; a reservoir; a valve; a nozzle; an electric motor; a gear system; an arm having one end rotatably disposed in the gear system; a link having one end pivotably secured to an other end of the arm and loosely put on the nozzle; an electric control unit; a sensor; and a power source. The electric control unit actuates the electric motor upon receiving a signal from the sensor, the actuated electric motor rotates the gear system, one end of the arm rotates 180-degree to move the link upward to open the valve thereby flowing liquid soap from the reservoir to the nozzle, and one end of the arm rotates further 180-degree to move the link downward to close the valve thereby stopping the flowing and deactivating the electric motor. Power demand is greatly reduced when in use.

Abstract: A device for delivering fluid, having an elongated outer casing (10) provided with a substantially cylindrical inner chamber (11); an inner cartridge (20), for insertion into the inner chamber (11) and including a plunger (21) movable axially along a longitudinal axis A-A of an inner reservoir (22) towards an outlet (28). The device also includes a coil assembly (12, 23, 24) having an outer coil (12), an inner coil (23) and an inner coil core (24). The outer coil (12) is provided on the outer casing (10) and axially oriented along the chamber longitudinal axis. And, the inner coil (23) is provided in the inner cartridge (20) attached to the movable plunger (21).

Abstract: A chemical mixing device. The device includes a flow generator operative to provide at least two streams of chemicals and a mixing chamber, including at least two inlets adapted to receive the at least two streams of chemicals and an outlet through which a mixture of the streams of chemicals is ejected from the mixing device. The mixing chamber has an open state in which the chemicals are mixed and a closed state in which the volume of the mixing chamber is less than a fifth of the open state volume.

Abstract: A chemical mixing device. The device includes a flow generator operative to provide at least two streams of chemicals and a mixing chamber, including at least two inlets adapted to receive the at least two streams of chemicals and an outlet through which a mixture of the streams of chemicals is ejected from the mixing device. The mixing chamber has an open state in which the chemicals are mixed and a closed state in which the volume of the mixing chamber is less than a fifth of the open state volume.

Abstract: A lubricant dispenser and an electrical tool. The dispenser includes a housing; a reservoir for containing lubricant; a pump assembly operable to pump lubricant; and a purge assembly including a channel defined by the housing and extending between the reservoir and atmosphere, at least a portion of the channel extending along a channel axis through an opening in the housing and to atmosphere, and a plunger slidable along a plunger axis between a sealed position, in which the reservoir is isolated from atmosphere, and an open position, in which the reservoir is in fluid communication with atmosphere, the plunger axis extending at an angle with respect to the channel axis. The purge assembly may include a biasing member operable to bias the plunger toward the sealed position. The tool may be a dispenser and may include a motor supported by the housing; a trigger; and a trigger lock assembly.

Abstract: A system and method for releasably coupling a fluid dispenser to a structure. There is a push to connect-pull to disconnect connector system that has first and second mating connectors. A first connector is mounted to the dispenser and a second connector is mounted to the structure. The connector system accomplishes both mechanical and electrical interconnection between the dispenser and the structure.

Abstract: A system for spray delivery of liquids comprising a motor axially coupled to one or more pistons through a wobble plate coupling. Each piston feeds an input port of a swirl chamber spray nozzle. Each piston may separately pulse the swirl chamber using a different injection point. In one embodiment, the spray nozzle, swirl chamber, feed channels and cylinder heads for the cylinders may be formed as a single integrated casting. In one embodiment, the sprayer may include an intermediate plate rotatably mounted on the wobble plate. The sprayer may include a piston cap with a flat contact with the wobble plate/intermediate plate and a spherical interface with the piston. In a further embodiment, the system may be configured for handheld application of liquids and may comprise a tank for holding the liquid, a power source and control actuator together with the spray pump and nozzle in a hand operable package.

Abstract: A countertop automatic foam soap dispenser includes an automatic foam soap dispenser body, a soap liquid container, a circular connecting tube and a battery compartment. The soap liquid container is filled with an appropriate quantity of liquid soap. The battery compartment supplies electric power to the automatic foam soap dispenser body. The automatic foam soap dispenser body is passed through the circular connecting tube by a soap transmission tube and installed to the bottom inside the soap liquid container. The automatic foam soap dispenser body includes a foam soap valve, a control circuit board, a sensor, a motor controlled by the control circuit board, and a transmission gear set. When a user's hand approaches a sensor of the automatic foam soap dispenser body, the motor drives a cam of the transmission gear set to rotate and compress a foam soap valve to supply the appropriate quantity of foam soap.

Abstract: An apparatus and method for collection and containment of collected materials is provided. The apparatus can include a vacuum truck with at least one vacuum tank, the vacuum tank having a hollow interior region. A flexible bladder can be disposed within the hollow interior region of the vacuum tank. The bladder can be impermeable to and compatible with the collected material and capable of containing the material.

Abstract: The liquid material ejector has a liquid material supply port through which the liquid material is supplied, a nozzle for ejecting the liquid material, a valve block having a metering bore to be filled with the ejected liquid material and a liquid material supply channel communicating with the liquid material supply port, a selector valve having a first channel for allowing communication between the metering bore and the liquid material supply channel and a second channel for allowing communication between the metering bore and the nozzle, a plunger advancing and retracting in the metering bore, a plunger driving section for driving the plunger, a valve driving section for driving the selector valve, and a transmission section for transmitting driving power from the valve driving section to the selector valve. The plunger driving section, the valve driving section, and the valve block are arranged successively in the longitudinal direction.

Abstract: The container disclosed has a first compartment and a second compartment. The first compartment is formed by a sidewall extending upward from a base and a top and is capable of storing water. The second compartment is formed by a removable section and the side wall of the first compartment. A pump assembly and switch assembly are housed in the second compartment. A first tube extends from the pump assembly in the second compartment through a first opening in the side wall to the first compartment. Pump assembly connects to a power source by an electric wire. An optional third compartment can house an internal power source. When activated pump assembly provides suction to first tube which collects water from first compartment. Water is pressurized in a high pressure pump and expelled through a nozzle conduit and spray nozzle for use.

Abstract: A concentrate/extract cartridge for a beverage dispenser adapted to dispense a liquid concentrate/extract and a diluent is provided. The cartridge includes a hollow body for containing liquid concentrate/extract and an aperture. A pumping device is connected to the hollow body for dispensing the liquid concentrate/extract from the hollow body through the aperture. A method for dispensing a liquid concentrate/extract from a beverage dispenser using a concentrate/extract cartridge is also provided in which the concentrate/extract does not come into contact with the dispenser.

Abstract: A control circuit for a PMDC motor used in an ice delivery apparatus, the circuit including a double pole double throw relay that switches both sides of the circuit and peripheral circuitry connected between a power source and the double pole double throw relay to rectify the power source and power the PMDC motor.

Abstract: An adhesive dispensing assembly includes a positioning module, a driving rod, a guiding block, a screw nut, a moving rod, and a motor. The positioning module is for positioning an adhesive cylinder. The screw nut is secured in the guiding block and engages with the driving rod by a screw thread. The moving rod has one end fastened to the guiding block and the other end for moving the adhesive cylinder. The motor drives the driving rod to rotate to move the screw nut, the guiding block, and the moving rod in one direction or another. An adhesive dispenser using the assembly is also described.

Abstract: A power trigger sprayer comprising an integrated nozzle and pump assembly. The pump may comprise one or more pistons. Each piston feeds an input port of a swirl chamber spray nozzle. The nozzle is pulsed at a high rate, producing a predetermined spray pattern. In a further embodiment, the sprayer may be configured for handheld application of liquids and may comprise a tank for holding the liquid, a power source and control actuator together with the spray pump and nozzle in a hand operable unit. The sprayer may comprise a drip guard for directing drip flow away from the trigger and hand grip portion of the sprayer. The sprayer may include a battery within the hand grip portion. The battery may be in a battery module with grip/latch tabs allowing easy removal and replacement of the battery.

Abstract: Embodiments of methods of controlling a motor for driving a load are disclosed herein. Exemplary methods include providing energy to a motor, sensing a parameter indicative of current. Determining the end of an inrush current and a start point that is after the inrush current and that is at about the beginning of a main current draw. Determining an end point at about the end of the main current draw. Continuing to provide energy to the motor for a time period that is a function of the time from the start point to the end point and de-energizing the motor.

Abstract: A powered dispensing tool includes a housing, a motor positioned within the housing, a rack coupled to the motor for powered translation in at least one of a forward direction and a reverse direction, and a transmission selectively coupling the motor and the rack. The transmission includes an input ring rotatable in response to rotation of the motor in a first direction corresponding with powered translation of the rack in the forward direction, a first clutch member engaged with the rack through an intermediate gear, and a second clutch member that receives torque from the input ring and that is movable in response to rotation of the motor in the first direction toward a first position engaging the first clutch member. The second clutch member is also movable in response to rotation of the motor in an opposite, second direction toward a second position disengaged from the first clutch member.

Abstract: A liquid atomizer (1) with battery-powered (1) piezoelectric vibration device (4), of the type timed to occur between alternate activation cycles and rest cycles and including a first electronic supply circuit (2) with an impulse current generator (9) at a relatively high voltage and a second supply circuit (5a) of the piezoelectric vibration device (4) at a relatively low voltage, as well as a switch device (10, 11) apt to connect in alternate phases the supply of the piezoelectric vibration device (4)—in a same actuation cycle—to the first circuit and to the second circuit. An actuation method of the atomizer is also described.

Abstract: An adhesive melter includes a melter support frame with a spring-loaded support and a manifold for receiving molten adhesive. The melter also includes a pump pack assembly having a rigid frame carrying a pump for directing flow of molten adhesive through the manifold, a motor, and a drive coupling operatively connecting the pump and motor. The pump pack assembly is collectively mounted as a unit on the melter support frame by positioning the rigid frame on the spring-loaded support, moving the pump into abutment with the manifold, and fastening the pump into fluid-tight engagement with the manifold, the support adjusting in position during fastening to assist with carrying the pump pack assembly as a cantilever load.

Abstract: A feeder apparatus includes a hopper having a longitudinal axis and a wall having an external surface and an internal surface defining a thickness therebetween. The wall defines an infeed end for receipt of particulate material and an outfeed end for conveyance of the particulate material from the hopper. The outfeed end defines or has an outfeed aperture therein. A base disposed such that at least a portion of the base is substantially coextensive with the outfeed aperture. The base has at least one base aperture therethrough to facilitate conveyance of the particulate material from the hopper. The base aperture may be concentrically or eccentrically disposed relative to the longitudinal axis of said hopper. At least one of the base and the hopper is capable of rotation relative to another of the base and hopper, such that the base aperture is in at least intermittent in particulate flow communication with the outfeed aperture.

Abstract: The present invention is a drywall spray gun that disperses drywall material that includes a funnel-shaped hopper, a casing that houses a flip lever and a fan, a slide lock trigger and a trigger shield that protects the slide lock trigger from being struck or touched unintentionally and a rechargeable battery pack. The spray gun also includes a removable motor, a forearm rest, an adjustable nozzle and a corresponding stand with a bottom base, an upright vertical backing and a c-shaped top that secures the drywall spray gun in place while the drywall material is poured into the hopper.

Abstract: The present invention discloses a liquid dispenser having a body capable of attaching to an upright support surface. The body having a top wall, sidewalls, and a bottom wall, and a first orifice present in the bottom wall. The first orifice leads into an intermediary chamber said intermediary chamber having a second orifice. The second orifice may be located substantially opposite said first orifice. The intermediary chamber having an open end for admitting a control mechanism, with the control mechanism axially or reciprocally disposed within the intermediary chamber. Also present is a refill opening that is disposed along the sidewalls.

Abstract: An applicator for extruding strings of cake icing or other flowable semi-solid material comprises a longitudinally slotted screw rotated in a fixed nut and thereby advanced longitudinally in a tube, and a rotating nozzle assembly having a partition extending into the slot or slots of the screw whereby the nozzle assembly rotates with the screw as the screw advances. Pistons formed at an end of the screw fit cylinders formed by the interior wall of the tube and the partition to eject icing through one or more nozzles of the rotating nozzle assembly.

Abstract: A spray device comprises spray container receiving means and spray container actuation means (102, 126), wherein the spray container actuation means are adapted to periodically cause ejection of spray material from a spray container (116) by means of an actuator arm (102), wherein the actuator arm (102) incorporates position indication means (144).

Abstract: The present invention is preferably directed to a dispenser of the type sold by 3M ESPE under the trade name Pentamix and as also described above. Such a dispenser preferably comprises at least a first and a second compartment for a first reservoir and a second reservoir, respectively, the first and the second reservoirs containing a first and a second component for the dental material, respectively. It further preferably comprises a first and a second plunger driven by a first drive for advancing the first and the second components from the first and the second reservoirs, respectively. Moreover, a dynamic mixer driven by a second drive for automatically mixing the first and second components to form the dental material from the first and second components is provided. Such a dispenser further preferably has a dispensing portion or mixing tip for dispensing the mixed dental material.

Abstract: A pumping system comprises an internal combustion engine, a generator, a pumping unit and a heat recovery system. The generator is driven by the internal combustion engine. The pumping unit is powered by the generator. The heat recovery system thermally couples the internal combustion engine with the pumping unit.

Abstract: A soap dispenser can be configured to dispense an amount of liquid soap, for example, upon detecting the presence of an object. Certain embodiments of the dispenser include a housing, reservoir, pump, and nozzle. In some embodiments, the dispenser includes a bypass passage, which can facilitate priming of the pump. In certain embodiments, the dispenser is configured to inhibit or avoid the formation of an air bubble that could obstruct the liquid soap from entering the pump. In some embodiments, the pump includes engaging gears, which can include a plurality of teeth with substantially pointed tips. In certain embodiments, the nozzle comprises a one-way valve, such as a duckbill valve. Some embodiments of the one-way valve are shaped or otherwise configured to provide certain biases to the valve, which can, for example, facilitate rapid opening and closing of the valve.

Abstract: A quick disconnect device for connecting a sprayer tank to a portable pump assembly has a tubular body with an internal passageway for conveying gas between the sprayer tank and the portable pump assembly. A first plunger member is mounted within the internal passageway of that device for moving reciprocally between the sprayer tank and the portable pump assembly. A second plunger member, mounted within the internal passageway, moves reciprocally between the sprayer tank and the portable pump assembly. A first resilient member urges the first plunger member away from the sprayer tank to prevent gas from flowing into the sprayer tank. A second resilient member urges the second plunger member toward the sprayer tank to prevent gas from flowing out of the sprayer tank. The first plunger member moves toward the sprayer tank to overcome the spring constant of the first resilient member to direct gas from the portable pump assembly into the sprayer tank.

Abstract: A replenishable liquid soap dispensing apparatus includes a liquid soap container, a soap dispensing device and a support rack. The liquid soap container includes a holding portion, a bottle opening on the holding portion and at least one lean portion on the holding portion. The soap dispensing device has a soap intake tube connecting to the liquid soap container to draw liquid soap, a soap discharge tube connecting to the soap intake tube to discharge the liquid soap and a pressurizing mechanism to increase the pressure in the soap intake tube and soap discharge tube to send the liquid soap from the soap intake tube towards the soap discharge tube. The support rack includes a first support portion to hold the soap dispensing device and a second support portion corresponding to and coupling with the lean portion to hold the liquid soap container.

Abstract: A sludge handling system includes at least one bin that receives sewage sludge at an upper end thereof, and that has sloped side wall(s) at the lower end thereof, for directing sewage sludge toward a generally central discharge opening. A rotating discharge device is provided in the form of a thin foil or blade that is rotationally driven to scrape along the sloped side wall(s) of the bin, scraping sludge therefrom, to keep the sludge from adhering to sloped portions of the bin, and to direct sludge out the discharge opening. The rotating discharge device is mounted on and carried by a generally cylindrical rotating table that is motor-driven. A generally cylindrical seal is also carried by the rotating table, and slides along the inside of a sludge discharge chute, at the discharge opening of the bin.

Abstract: An electric caulking gun has a body and an actuating assembly. The body has a pushing shaft, a motor, a gearbox, a transmission device, a circuit board and a switch. The gearbox has a sun gear with multiple mounting slots. The actuating assembly is mounted in the body, is connected to the switch and engages the sun gear and has a connecting arm, a linking arm, an actuating element, an oscillating arm and a pressing button. The connecting arm is pivotally connected to the switch. The linking arm is connected to the connecting arm. The actuating element is mounted in the body, selectively engages one of the mounting slots and has a wedge mount and an engaging block. The oscillating arm is connected to the body and is connected to the connecting arm. The pressing button is movably mounted in the body and is connected to the oscillating arm.

Abstract: This specification describes technologies relating to a pump for dispensing precise quantities of fluids. In some implementations, a pump includes a rotatable portion including one or more recesses configured to receive one or more corresponding roller components; and a base portion including a fluid channel including an input aperture and an output aperture, the fluid channel being configured to receive the one or more roller components, and a flexible membrane that provides a seal between the roller components and the fluid channel, wherein, the rotatable portion is rotatably coupled to the base portion such that the fluid channel includes one or more portions sealed by the flexible membrane and one or more roller components and wherein rotation of the rotatable portion causes the one or more roller components to traverse the fluid channel pushing fluid trapped within the fluid channel and the membrane in the direction of rotation.

Abstract: A dosing apparatus for the delivery of a substance in discrete form comprises a conveying element in which the discharge end thereof is a close fit in a discharge bushing thereby to ensure that the correct dosage of substance is discharged on a consistent basis. At least a portion of the conveying element located adjacent the discharge wall has a sharp edge for an easy breaking of larger particles of the feeding substance to ensure accurate dosage.

Abstract: A grease gun includes a housing, a motor positioned within the housing, a pump assembly coupled to and driven by the motor, and a chamber supported by the housing in fluid communication with the pump assembly. The chamber is configured to store a liquid. The grease gun also includes an outlet in fluid communication with the chamber and a measurement system operable to measure an amount of liquid being dispensed through the outlet. The measurement system monitors a change in current of the motor over a cycle of the pump assembly, compares the change in current to a predetermined value, and, if the change in current is greater than the predetermined value, increases a pump cycle counter to indicate that liquid was dispensed.