Nordson Corporation

John C Dillon

Lenzie Borders

James Khoury

Lynne M Whitmore

Mark Wilson

Thomas A Loparo

Joseph C Waryu

Charles Nagy

William L Palmer

John Roos

Stephen P Stewart

A monitoring system that permits an operator to observe on a visual display operating data for a plurality of dispensing devices. These data displays are visual representations based on signals received from a monitor control. The operator is able to arrange and group the displays of a plurality of dispensing devices as required. In one embodiment, the visual representations include graphical representations of a characteristic of the dispensed fluid on a time line, such as a pressure reading for example. Such graphical representations may include alarm limits or bands. Each visual representation may include fault indications that are time and date stamped. The visual representations may also be color coded to indicate normal and fault conditions. All of this monitoring may conveniently be performed at a location that is remote from the dispensing devices. The collected information may be logged for later analysis such as exporting the data to another program such as a spreadsheet database.

Spray gun control operator interface

A hot melt high temperature material application system with application device pressure monitoring and heated recirculating manifold uses high temperature pressure transducers with each application device such as spray guns to monitor hot melt material application. A material supply line fitting has a calibrated orifice at the interface with a device manifold associated with each application device. In another embodiment, the calibrated orifice is located in a fluid passageway of the device manifold. The calibrated orifice corresponds in size to the opening of a nozzle of the application device. Heated recirculating manifolds are combined with hot melt material supply systems to provide uniform pressure to multiple application devices, and to recirculate material back through the supply system. Each recirculating manifold includes a heater, pressure regulator, and a recirculation path. The manifolds may be directly or remotely connected to one or more hot melt material supply systems.

Hot melt material application system with high temperature pressure monitoring and heated recirculating manifolds

A fluid dispensing system for monitoring a weight of a fluid dispensed by a fluid dispenser. A first monitoring device determines a first flow characteristic, for example, pressure, of the pressurized fluid flowing through the fluid dispenser; and a second monitoring device determines a second flow characteristic, for example, viscosity, of the pressurized fluid flowing through the fluid dispenser. A monitor control produces an output representing a weight of the fluid dispensed by the fluid dispenser as a function of the first and second flow characteristics. The monitor control also stores values relating to a size of an orifice through which the pressurized fluid is dispensed and a density of the pressurized fluid. The weight value is determined as a function of the orifice size and the density values. The present invention also includes a method of monitoring a weight of a fluid being dispensed by a fluid dispenser.

Fluid dispenser with fluid weight monitor

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Lorain, OH, United States of America

John C Dillon