An apparatus and a method for dispensing a viscous adhesive for attaching a semiconductor die onto a substrate are provided, where the method comprises the steps of dispensing a volume of viscous adhesive from a nozzle onto the substrate and moving the nozzle away from the substrate such that an adhesive tail is formed between the nozzle and the volume of viscous adhesive. The method further comprises the steps of capturing multiple images of the adhesive tail with an imaging device as the nozzle is moving away from the substrate with an imaging device; and thereafter detecting with the imaging device an instant when the adhesive tail breaks from the volume of viscous adhesive.

An apparatus and a method for dispensing a viscous adhesive for attaching a semiconductor die onto a substrate are provided, where the method comprises the steps of dispensing a volume of viscous adhesive from a nozzle onto the substrate and moving the nozzle away from the substrate such that an adhesive tail is formed between the nozzle and the volume of viscous adhesive. The method further comprises the steps of capturing multiple images of the adhesive tail with an imaging device as the nozzle is moving away from the substrate with an imaging device; and thereafter detecting with the imaging device an instant when the adhesive tail breaks from the volume of viscous adhesive.

An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.

An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.

A spray bar injector including a spray bar defining a longitudinal axis and including a fluid inlet and a plurality of spray outlet orifices spaced apart longitudinally in a direction along the longitudinal axis. A check or spray valve is operatively connected to each spray outlet orifice. A master valve is in fluid communication with the fluid inlet, operatively connected to divert flow from the fluid inlet into a first passage and block flow into a second passage in a first position to open the check valves and issue a spray from the spray outlet orifices, and to divert flow from the fluid inlet into the second passage and block flow into the first passage in a second position to close the check valves and block issue of spray from the spray outlet orifices.

The invention relates to an automatic dispenser (100) of fluid products contained in cartridges, these being able to accommodate a large number of large-capacity cartridges while having reduced over-inking. The dispenser comprises: a frame provided with N slots (E) for cartridges (200A, 200B, 200C) of products, these cartridges being each provided with a reservoir and with a metering pump; an actuation system (30) for the cartridges, comprising: a motor (31) that is able to generate a force for actuating the metering pump of the cartridges; a selective transmission mechanism (32) that is able to selectively transmit the force generated by the motor to at least one of the metering pumps; a recess for a removable container; the N slots (E) being arranged substantially horizontally and in a stepped manner.

The invention relates to an automatic dispenser (100) of fluid products contained in cartridges, these being able to accommodate a large number of large-capacity cartridges while having reduced over-inking. The dispenser comprises: a frame provided with N slots (E) for cartridges (200A, 200B, 200C) of products, these cartridges being each provided with a reservoir and with a metering pump; an actuation system (30) for the cartridges, comprising: a motor (31) that is able to generate a force for actuating the metering pump of the cartridges; a selective transmission mechanism (32) that is able to selectively transmit the force generated by the motor to at least one of the metering pumps; a recess for a removable container; the N slots (E) being arranged substantially horizontally and in a stepped manner.

The invention relates to a system for dropping a liquid, comprising a liquid storage reservoir (2) provided with a liquid outlet area (3) that comprises an outlet nozzle (4) and a dropping hatch (5).

Furthermore, the dropping System (1) comprises means for varying the air pressure in the storage reservoir (2) depending on the level of liquid in the reservoir (2).

An injector is provided, comprising: a valve seat having a needle opening extending from an upper surface along a longitudinal axis and terminating at a seating surface configured to mate with a valve needle to control flow of fluid through the injector, and a nozzle plate. The valve seat further comprises a plurality of drillings and a corresponding plurality of swirl channels, each of the plurality of drillings being in flow communication with the needle opening and a swirl channel. Each of the swirl channels directs flow of fluid from one of the drillings toward the longitudinal axis into a central swirl chamber. The nozzle plate includes a substantially flat upper surface that engages the valve seat lower surface and includes an opening in flow communication with a metering orifice, the opening being aligned with the central swirl chamber when the nozzle plate is attached to the valve seat.

The present invention provides a showerhead, and a water jet for a showerhead, that is specifically configured to aerate at least some of the water passing through the showerhead. This is achieved by a water jet configuration that may require less precision in manufacturing tolerances and may be a more cost-effective solution for producing a softer flow of water compared to prior art arrangements. The invention has particular application for handheld showerheads which have multiple spray arrays.