Nordson Corporation

James Khoury

James M Borsuk

Terrence M Fulkerson

James C Smith

Edward C McGhee

Charles Nagy

Stephen G Nemethy

Mark J Ignatius

Brian D Mather

Thomas A Loparo

Jeffery Edward Dailidas

John J Binder

Michael S Thomas

Jared J Bell

Lenzie Borders

John A Greco

Martin T Vicens

Stephen P Lovass

Gregory S Dawson

Jeffery A Perkins

John Palazzo

Joseph G Schroeder

Jeffrey A Perkins

Mario Romanin

John C Dillon

Lynne M Whitmore

Mark Wilson

Timothy E Wilson

James V Bachman

Drew Roberts

Gregory W Harrell

Hallie Smith-Petee

Ed McGhee

Jeffrey Dailidas

Michael Thomas

Thomas Loparo

A light assembly coupled to a spray gun for spraying electrostatically charged coating material is disclosed. The spray gun includes a gun body comprising a barrel, a nozzle assembly extending from the barrel in a longitudinal direction, a voltage multiplier, and an actuator assembly configured to transition the voltage multiplier between an activated state and a deactivated state. The light assembly includes a light and circuitry electrically connected to the light. The circuitry is configured to supply electrical energy inductively obtained by the circuitry to the light when the voltage multiplier is in the activated state. The light assembly can also include a housing, a lens cover releasably attached to the housing, and a control member for changing a characteristic of the light.

Retrofit light assembly and powder spray gun with integrated or retrofit light

A microwave excited ultraviolet lamp system with a data logging and retrieval circuit and method for operating the same. The data logging and retrieval circuit stores operational data in a cache memory using a FIFO data storage protocol. The contents of the cache memory are periodically copied to a larger removable memory so that the removable memory contains a relatively long historical record of the system operational parameters. The data logging and retrieval circuit includes a data port configured to load the contents of the cache memory into an external device when the device is coupled to the data port. A second data port allows the external device to supply power to the data logging and retrieval circuit so that data may be retrieved when the internal power supply is malfunctioning. Data stored in the removable memory may be protected so that it may only be accessed by authorized personnel.

Microwave excited ultraviolet lamp system with data logging and retrieval circuit and method

A system, method, and computer program product for optimizing the cooling of a UV bulb during a UV irradiation process is described. A power level in which to operate the UV bulb is received. In addition, a particular type of UV bulb being used in the UV irradiation process is received. Thereafter, at least one optimal UV cooling parameter that corresponds to the power level and the type of UV bulb is retrieved from a UV source parameters database. At least one control signal is then sent to a cooling device that is based on the retrieved optimal UV cooling parameter, and the control signal instructs the cooling device to cool the particular type of UV bulb according to the retrieved optimal UV cooling parameter during the UV irradiation process.

Microwave powered lamp with optimized cooling for different bulb chemistries

A can coating machine control system includes a coating control signal that functions as a go/no-go signal based on a plurality of monitored conditions such as can in position, vacuum pressure, gun in position, guard in position and speed condition. Local pressure regulation of the coating material in the spray gun is provided along with optional control of the material temperature. Local pressure regulation allows for optional spray weight control based on a wrap number derived from speed and gun spray durations. A CAN to CAN network buffer is provided as well for primary network isolation. A gun control circuit may be used to select specific gun drive signals and to adjust gun drive signals based on real-time feedback of the actual spray duration.

Control system for can coating

A UV system for irradiating a substrate includes a RF source capable of generating RF energy, a UV lamp capable of emitting UV energy when excited by the RF energy generated by the RF source, and a monitor coupled to the RF source. The monitor includes data relating to the RF source. The UV system further includes a controller capable of communication with the monitor, and the controller determines if the RF source is suitable for operation with the UV system based on the data of the monitor and/or the end of its useful life.

Systems and methods for determining the suitability of RF sources in ultraviolet systems

A UV system for irradiating a substrate includes a lamphead having an enclosure with an interior. A UV bulb is positioned in the interior and is capable of emitting UV energy when excited by RF energy. The UV system also includes a solid state RF source capable of generating the RF energy. The RF energy is transmitted to the UV bulb, which causes the UV bulb to ignite and emit the UV energy from the interior of the lamphead.

Ultraviolet systems and methods for irradiating a substrate

Embodiments of the invention provide an apparatus, method, and program product to control a lamp system. The apparatus comprises a plasma lamp bulb () and a microwave generator () operable to generate a microwave energy field to excite the plasma lamp bulb () to emit ultraviolet light (). The apparatus further comprises a sensor () to measure the intensity of the ultraviolet light () and a reflector () positioned between the plasma lamp bulb () and the sensor () The reflector () is operable to reflect at least a portion of the ultraviolet light () generated by the plasma lamp bulb (). The method comprises receiving a target intensity for the ultraviolet light () and measuring an intensity of the ultraviolet light () using a sensor (). The method further comprises comparing the target intensity to the measured intensity and, in response to the comparison, adjusting power to a microwave generator () to adjust the intensity of the ultraviolet light ().

Ultraviolet lamp system and method for controlling emitted ultraviolet light

Apparatus for detecting powder flow along a powder flow path includes a light source and a light detector for detecting light from the light source directed across the powder flow path as powder flows through said powder flow path. A circuit receives the output from the light detector and determines an average or RMS of the signal received by the light detector. The circuit may determine whether there is flow or no flow of powder or whether there is a change in flow rate of powder. Preferably, the apparatus is used in combination with a dense phase powder pump, which causes the powder to flow in pulses from the pump outlet into the powder flow path. More preferably, the light source and detector are enclosed in a housing that is connected between the pump outlet and a powder feed hose which supplies powder to a spray gun or hopper.

Powder flow detection

An apparatus for generating ultraviolet light and irradiating a 450 mm diameter semi-conductor wafer. The apparatus includes a plenum and an array of nine RF irradiator units coupled with the plenum. Each irradiator unit includes a plasma lamp bulb and an RF generator operable to generate a radiation energy field to excite the plasma lamp bulb and emit the ultraviolet light. The nine irradiator units are arranged in three rows with three of the irradiator units in each row.

Method and apparatus for irradiating a semi-conductor wafer with ultraviolet light

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Strongsville, OH, United States of America

James Khoury