Abstract: A nozzle assembly includes a first body having an upper and an inner surface; a first channel in the first body to receive a material; a second body having an upper and an inner surface; a second channel in the second body, in liquid communication with the first channel, and configured to receive the material from the first channel; a material outlet defined by the first and second bodies configured to discharge the material; a material inlet on the upper surface of the first body, in liquid communication with the first channel, and configured to receive the material into the nozzle assembly; and an upper lip extending from the first body toward the second body and partly defined by the upper surface of the first body. The upper lip includes a lip surface opposite the upper surface of the first body. The upper surface of the second body is configured to contact the lip surface of the upper lip.

Abstract: Systems and methods for dispensing a liquid onto a substrate are disclosed. A dispensing assembly includes a housing, a valve stem, and a control valve. The housing receives the liquid to be dispensed. The valve stem is disposed in the housing and has a first configuration, in which the liquid is allowed to exit the housing, and a second configuration, in which the liquid is prevented from exiting the housing. The control valve receives pressurized air from a pressurized air source. The control valve has a first position, in which the pressurized air acts on the valve stem to move the valve stem to the first configuration or to the second configuration, and a second position, in which the pressurized air is moved out of the dispensing assembly through an exhaust passage defined therein.

Abstract: A nozzle assembly includes a first body having an upper and an inner surface; a first channel in the first body to receive a material; a second body having an upper and an inner surface; a second channel in the second body, in liquid communication with the first channel, and configured to receive the material from the first channel; a material outlet defined by the first and second bodies configured to discharge the material; a material inlet on the upper surface of the first body, in liquid communication with the first channel, and configured to receive the material into the nozzle assembly; and an upper lip extending from the first body toward the second body and partly defined by the upper surface of the first body. The upper lip includes a lip surface opposite the upper surface of the first body. The upper surface of the second body is configured to contact the lip surface of the upper lip.

Abstract: A nozzle assembly includes a first body having an upper and an inner surface; a first channel in the first body to receive a material; a second body having an upper and an inner surface; a second channel in the second body, in liquid communication with the first channel, and configured to receive the material from the first channel; a material outlet defined by the first and second bodies configured to discharge the material; a material inlet on the upper surface of the first body, in liquid communication with the first channel, and configured to receive the material into the nozzle assembly; and an upper lip extending from the first body toward the second body and partly defined by the upper surface of the first body. The upper lip includes a lip surface opposite the upper surface of the first body. The upper surface of the second body is configured to contact the lip surface of the upper lip.

Abstract: A nozzle assembly includes a first body having an upper and an inner surface; a first channel in the first body to receive a material; a second body having an upper and an inner surface; a second channel in the second body, in liquid communication with the first channel, and configured to receive the material from the first channel; a material outlet defined by the first and second bodies configured to discharge the material; a material inlet on the upper surface of the first body, in liquid communication with the first channel, and configured to receive the material into the nozzle assembly; and an upper lip extending from the first body toward the second body and partly defined by the upper surface of the first body. The upper lip includes a lip surface opposite the upper surface of the first body. The upper surface of the second body is configured to contact the lip surface of the upper lip.

Abstract: A nozzle clamp includes a body defining a first surface and an opposing second surface. The nozzle includes an arm pivotally connected to the body and configured to move between first and second positions. The arm includes a bore therethrough and a protrusion that is configured to contact the nozzle. The nozzle includes a fastener movable within the bore of the arm and configured to contact the second surface of the body. The clamp is movable between a first configuration and a second configuration. When the clamp is in the first configuration, the fastener is in contact with the second surface of the body, and the arm is precluded from being rotated relative to the body. When the clamp is in the second configuration, the fastener is not in contact with the second surface, and the arm is permitted to be pivoted relative to the body.

Abstract: A nozzle clamp includes a body defining a first surface and an opposing second surface. The nozzle includes an arm pivotally connected to the body and configured to move between first and second positions. The arm includes a bore therethrough and a protrusion that is configured to contact the nozzle. The nozzle includes a fastener movable within the bore of the arm and configured to contact the second surface of the body. The clamp is movable between a first configuration and a second configuration. When the clamp is in the first configuration, the fastener is in contact with the second surface of the body, and the arm is precluded from being rotated relative to the body. When the clamp is in the second configuration, the fastener is not in contact with the second surface, and the arm is permitted to be pivoted relative to the body.

Abstract: Systems and methods for dispensing a liquid onto a substrate are disclosed. A dispensing assembly includes a housing, a valve stem, and a control valve. The housing receives the liquid to be dispensed. The valve stem is disposed in the housing and has a first configuration, in which the liquid is allowed to exit the housing, and a second configuration, in which the liquid is prevented from exiting the housing. The control valve receives pressurized air from a pressurized air source. The control valve has a first position, in which the pressurized air acts on the valve stem to move the valve stem to the first configuration or to the second configuration, and a second position, in which the pressurized air is moved out of the dispensing assembly through an exhaust passage defined therein.

Abstract: A melter for processing substantially solid, free-flowing adhesive particulate and supplying liquid adhesive is described. The melter has a tank for receiving adhesive, a heating device coupled with said tank for heating and liquefying adhesive particles, at least one pump for conveying the liquid adhesive, and a filling device for filling the tank with the substantially solid, free-flowing adhesive particulate. The filling device is arranged such that adhesive particulate is fed into the tank through an inlet opening of said tank. A filling device for filling a tank of an adhesive melter with substantially solid, free-flowing adhesive particles is also described.

Abstract: The invention relates to a metering device (5) for a fluid, in particular hot melt adhesive, adapted for use with a dispensing apparatus (1) for said fluid or a remote metering apparatus (16) for transporting said fluid, comprising a housing (28), said housing comprising a fluid inlet and one or more fluid outlets, a gear (34) which is rotatably supported in said housing (28) and inserted in a gear chamber (31) in the housing (28) such that a cavity for fluid transport is formed in between two adjacent teeth and said housing (28), one or more chamber inlets in fluid communication with said fluid inlet and said gear chamber (31) such that fluid may flow into said gear chamber (31).

Abstract: The present invention relates to melter for processing substantially solid, free-flowing adhesive particulate and supplying liquid adhesive. The melter has a tank for receiving adhesive, a heating device coupled with said tank for heating and liquefying adhesive particles, at least one pump for conveying the liquid adhesive, and a filling device for filling the tank with the substantially solid, free-flowing adhesive particulate. The filling device is arranged such that adhesive particulate can be fed into the tank through an inlet opening of said tank. The invention also relates to a filling device for filling a tank of an adhesive melter with substantially solid, free-flowing adhesive particles.

Abstract: The invention relates to a metering device (5) for a fluid, in particular hot melt adhesive, adapted for use with a dispensing apparatus (1) for said fluid or a remote metering apparatus (16) for transporting said fluid, comprising a housing (28), said housing comprising a fluid inlet and one or more fluid outlets, a gear (34) which is rotatably supported in said housing (28) and inserted in a gear chamber (31) in the housing (28) such that a cavity for fluid transport is formed in between two adjacent teeth and said housing (28), one or more chamber inlets in fluid communication with said fluid inlet and said gear chamber (31) such that fluid may flow into said gear chamber (31).

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments generally includes a plurality of liquid outlets positioned in a liquid discharge plane and first and second pluralities of air passages. The first plurality of air passages is positioned in a first plane oriented at a first angle relative to the liquid discharge plane, while the second plurality of air passages is positioned in a second plane oriented at a second angle relative to the liquid discharge plane. The first angle is different than the second angle so that pressurized process air streams from the first and second pluralities of air passages are directed asymmetrically toward adhesive filaments discharged from the liquid outlets to produce the random pattern.

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments. The nozzle may include first and second air shim plates, an adhesive shim plate and first and second separating shim plates. The first and second air shim plates each have respective pairs of air slots. Each air slot has a process air inlet and a process air outlet and the air slots of each pair converge toward one another such that the process air inlets are farther apart than the process air outlets in each pair. The adhesive shim plate includes a plurality of liquid slots each with a liquid outlet. Four process air outlets are associated with each of the liquid outlets. The process air slots are adapted to receive pressurized process air and the liquid slots are adapted to receive pressurized liquid adhesive.

Abstract: An apparatus for applying fluids such as adhesive, in particular hot melt adhesive, to a substrate movable relative to the apparatus, comprising a main body having a feed passage connectable to a fluid source, an application valve for selectively interrupting or enabling the flow of fluid in the feed passage, and a nozzle arrangement having a distributor passage connectable to the feed passage and at least one nozzle opening communicating with the distributor passage for delivery of the fluid. A body is movable in the distributor passage and has through passages which can be selectively associated with the nozzle opening by means of movement of the body in such a way that fluid is passed out of the distributor passage into the nozzle opening through at least one through passage.