Off Course Productions, Inc.

Tubemaster, Inc.

Innovative Productivity, Inc.

Stephen W Brewer

Robert Glen Peterson

Clifford L Johns

Dennis Patrick McAndrews

Paul Gossen

Jayant Angal

A grit blasting arrangement for cleaning chemical reactor tubes includes means for ensuring the grit blast nozzle is coaxial with the longitudinal axis of the tube to be cleaned. The grit blasting device for cleaning tubes spaced apart by upper and lower tubesheets. The grit blasting device includes a grit blast nozzle mounted on a positioning frame and projecting outwardly with an outlet directed into a tube opening during a cleaning operation. The device includes a plurality of stop pins mounted on the positioning frame designed to abut a tubesheet and to define an imaginary plane coplanar with the tubesheet. The plurality of stop pins when abutting the tubesheet prevent the outlet of the nozzle from extending into the tube causing a venturi effect.

Device for cleaning inner surface of heat exchanger tubes

An open field game arrangement includes glowing targets and provides responses, such as lights and sounds, when the targets are hit.

Open field game arrangement including glowing and responsive targets

A system for detecting voids or imperfections such as holidays in a coating having fluorescent material therein comprises a camera having a digital image output for inspecting the coating wherein said camera's digital image output may include only the image produced by light in a color spectrum corresponding to a portion of the spectrum of light produced by fluorescent emission of the coating, thereby revealing the presence of any imperfections. Furthermore, an ultraviolet light source is provided to illuminate the coating and excite fluorescent emission therein. In one embodiment, the system is capable of distinguishing between an imperfection and the complete absence of a substrate surface. The system is also capable of revealing coating defects or imperfections in irregular surfaces. A microcontroller is also provided, having an associated memory, an input for accepting the digital image output from the camera, and an output representative of an analyzed digital image wherein said analyzed digital image includes visible indicia of any voids or imperfections detected in the coating.

Fluorescent coating void detection system and method

Growing community of inventors

New Albany, IN, United States of America

Stephen W Brewer