Abstract: A fluid ejector for ejecting discrete volumes of ejectant includes a body with opposing first and second surfaces. One or more nozzles are defined as conduits extending through the body between the surfaces to connect first and second orifices at the first and second surfaces respectively. The fluid ejector further includes a gas supply means having a gas outlet and an ejectant supply means. The ejectant supply means supplies the ejectant to the nozzles at a pressure above ambient via their supply orifices. The supply orifice is defined in a conduit's side or is the second orifice. Relative movement of the gas supply means and body exposes first orifices to the gas outlet allowing the gas supply means to supply gas at a pressure above ambient, wherein a pressure difference thereby created between the first and second orifices causes ejection of the ejectant from the nozzles through the second orifices.

Abstract: A device (3000) for loading fluid into nozzle(s) of a nozzle-bearing body (3070) includes a first member (3010), having a first surface (3016), and a second member (3020) protruding from the first member (3010). The second member (3020) has second and third surfaces (3028, 3026), the second surface (3028) extending from the first surface (3016) at an angle. The first surface (3016) substantially complements the shape of the nozzle-bearing body's surface (3070). The device (3000) has a recess (3023) defined therein at least in part by the first and second surfaces (3016, 3028).

Abstract: A fluid ejector for ejecting discrete volumes of ejectant includes a body with opposing first and second surfaces. One or more nozzles are defined as conduits extending through the body between the surfaces to connect first and second orifices at the first and second surfaces respectively. The fluid ejector further includes a gas supply means having a gas outlet and an ejectant supply means. The ejectant supply means supplies the ejectant to the nozzles at a pressure above ambient via their supply orifices. The supply orifice is defined in a conduit's side or is the second orifice. Relative movement of the gas supply means and body exposes first orifices to the gas outlet allowing the gas supply means to supply gas at a pressure above ambient, wherein a pressure difference thereby created between the first and second orifices causes ejection of the ejectant from the nozzles through the second orifices.

Abstract: Systems and methods for controlling supply of electrical energy from power source(s) through a plurality of electrical conductors adjacent to a common electrolyte solution are disclosed. The power source(s) are controlled to apply potential difference waveform(s) between pairs of electrical conductors formed from the plurality of electrical conductors such that the potential difference waveform(s) have a magnitude that exceeds a threshold overpotential for the pairs of electrical conductors in the electrolyte solution while sums of an absolute value of a potential difference across a double layer associated with the first electrical conductor in a pair and an absolute value of a potential difference across a double layer associated with a second electrical conductor in the pair is maintained below the threshold overpotential. Some or all electrical conductor(s) can be coupled to the power source(s) using respective capacitor(s).

Abstract: A rifle assembly for a two-stage trigger includes a rifle arranged with an upper receiver and a lower receiver. A pistol grip is joined to the lower receiver and further has a pistol grip lower edge. A trigger housing further has a trigger housing lower receiver portion immediately adjacent to the lower receiver. The trigger housing lower receiver portion is immediately adjacent to a trigger housing magazine well portion and a trigger housing pistol grip portion. A bow trigger extends through a trigger housing lower receiver portion and into the lower receiver. The bow trigger has a cylindrical housing that is partially filled with a filler. A trigger stub is centrally located in the cylindrical housing. Moving a pressure point up or down on the cylindrical housing effectively changes the rifle from a single stage style fast shooting trigger to a slower shooting long range two stage trigger with a lower trigger pull weight.

Abstract: Systems and methods for controlling supply of electrical energy from power source(s) through a plurality of electrical conductors adjacent to a common electrolyte solution are disclosed. The power source(s) are controlled to apply potential difference waveform(s) between pairs of electrical conductors formed from the plurality of electrical conductors such that the potential difference waveform(s) have a magnitude that exceeds a threshold overpotential for the pairs of electrical conductors in the electrolyte solution whilst sums of an absolute value of a potential difference across a double layer associated with the first electrical conductor in a pair and an absolute value of a potential difference across a double layer associated with a second electrical conductor in the pair is maintained below the threshold overpotential. Some or all electrical conductor(s) can be coupled to the power source(s) using respective capacitor(s).

Abstract: A pump shutoff device is provided wherein compressed air supplied to the air inlet port of the over speed control device enters an air pressure chamber, and then proceeds to an adjacent air exhaust chamber. From there, the air passes to an outport which is connected,directly to the inlet port of the air motor of an air-operated piston pump spool located inside the body of the device, is shaped such that the valve spool functions to allow passage of air freely from the air pressure chamber to the air exhaust chamber. Compressed air is connected through a series of unrestricted conduits,ports and chambers continuous from the compressed air supply to the air motor of a pump. The air motor is energized by compressed air to provide continuous pumping. Positive pressure existing in the fluid pressure chamber exerts an axial thrust on the spool. Adjacent to the air chambers and opposite the position of the fluid pressure chamber is a coil compression spring.

Abstract: A printhead comprising: a housing having an inlet for the supply of ink; an array of ejection locations for the ejection of ink droplets; an ink supply pathway for the passage of ink from the inlets to the ejection locations, wherein the ink supply pathway comprises at least one divergent ink manifold; and an outlet manifold for receiving ink from the ejection locations.

Abstract: A food package kit including a plurality of trays having a bottom, a sidewall extending upwardly from the bottom and terminating at a top end, and a flange extending from the sidewall opposite the bottom, the flange includes a rim section configured to receive a sealing film, and a recessed section extending from the rim section, wherein each of the opposed longitudinal edges intersect with a lateral edge at a corner, wherein the kit also includes a sleeve adapted to contain the trays completely therein, the sleeve including a sleeve top, a first depending sleeve side, and a second depending sleeve side and a sleeve bottom, wherein the tray is completely disposed within the sleeve by frictional force between the tray and the sleeve.

Abstract: A container for use in microwave heating. The container includes a bottom, a sidewall extending upwardly from the bottom and terminating at a top end, and a flange extending from the sidewall opposite the bottom. The flange includes a rim section configured to receive a sealing film and a recessed section including a plurality of handles. A pair of catch members are located between the plurality of handles. The catch members extend radially outwardly on opposed sides of the container.

Abstract: The invention provides a drop-on-demand printer having a row of ink ejection locations for ejecting plural ink droplets, each ejection location having an associated ejection electrode for causing electrostatic ejection of the droplets from the respective ejection location. An intermediate electrode system has one or more rows of intermediate electrodes 3 spaced from the ejection locations between the ejection locations and a substrate on to which the droplets are printed during use. Plural conductive tracks 5 are provided, each corresponding to a respective intermediate or ejection electrode 3 and supplying a voltage to an electrode in use. Tracks 5 have a resistive element 14 either disposed immediately adjacent the corresponding electrode or actually forming the electrode 3.

Abstract: An ejection apparatus for ejecting material from a liquid at a plurality of ejection locations (4) disposed in a row, has a plurality of channels (11) through each of which liquid flows in use to or from a respective ejection location at an open end of the channel. An ejection electrode (7) is disposed at each ejection location by means of which an electric field is created in use to cause the ejection of material from the liquid. An electrically conductive path (12) exists to each ejection electrode for supplying a voltage to the ejection electrode (7) in use. The channels (11) are isolated from one another and the electrically conductive paths (12) are separated from the channels over substantially the whole of their length.

Abstract: A drop-on-demand printer having a row of ink ejection locations (2) for ejecting plural ink droplets, each ejection location (2) having an associated ejection electrode (40) to which a voltage is applied for causing electrostatic ejection of the droplets from the respective ejection location (2); a guard channel (5) disposed between adjacent ejection locations (2), each guard channel (5) having an electrode (50) disposed therein; and control means for applying a voltage to said guard channel electrodes (50), said applied voltage being the average of the voltages applied in operation over a given time to the adjacent ejection location electrodes.

Abstract: A drop-on-demand printer having a row of ink ejection locations (2) for ejecting plural ink droplets, each ejection location (2) having an associated ejection electrode (40) to which a voltage is applied for causing electrostatic ejection of the droplets from the respective ejection location (2); a guard channel (5) disposed between adjacent ejection locations (2), each guard channel (5) having an electrode (50) disposed therein; and control means for applying a voltage to said guard channel electrodes (50), said applied voltage being the average of the voltages applied in operati n over a given time to the adjacent ejection location electrodes.

Abstract: The invention provides a drop-on-demand printer having a row of ink ejection locations for ejecting plural ink droplets, each ejection location having an associated ejection electrode for causing electrostatic ejection of the droplets from the respective ejection location. An intermediate electrode system has one or more rows of intermediate electrodes 3 spaced from the ejection locations between the ejection locations and a substrate on to which the droplets are printed during use. Plural conductive tracks 5 are provided, each corresponding to a respective intermediate or ejection electrode 3 and supplying a voltage to an electrode in use. Tracks 5 have a resistive element 14 either disposed immediately adjacent the corresponding electrode or actually forming the electrode 3.

Abstract: There is disclosed an ejection apparatus for ejecting material from a fluid. An ejection cell (5) contains fluid from which the material is to be ejected and has an ejection upstand (6) which defines a location from which the material is ejected. One or more ejection electrodes (9) are disposed in the cell substantially surrounding the ejection upstand (6).