Welding arc apparel with UV or thermochromic activated images

Abstract

A welding accessory and a system for detecting thermal and / or UV radiation exposure during welding operations are disclosed. The welding accessory may have a surface exposed to thermal and / or UV radiation generated by electric arc welding, a first image visible without exposure to the thermal and / or UV radiation, and a second image formed from either a UV activated dye that is visible only after exposure to UV radiation generated by the electric welding arc or a thermochromic dye that is visible only after exposure to a predetermined level of thermal radiation generated by the welding arc. A system may include either a thermal or UV exposure indicator with a first state and at least a second state, and include either a thermochromic or UV activated dye adapted to provide a reversi- ble or persistent visual indication upon exposure to radiation. The visual indication may include any combination of symbols, logos, images, text, or other decorative or informational designs as desired.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application Serial No. 12 / 618,231, filed November 13, 2009, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to welding accessories, and more particularly, to welding apparel having images activated by UV radiation from an electric welding arc, or having images activated at various welding exposure temperatures. Background technique [0004] Welding is an important process in the manufacture and construction of various products and structures. Applications for welding are widespread and used throughout the world, including, for example, the construction and repair of ships, buildings, bridges, vehicles, and pipelines, to name a few. Welding is performed at different locations, such as in a factory with a stationary welding operation or on site with portable welding machines. [0005] In manual or semi-auto...

AI Technical Summary

Problems solved by technology

However, reflection of UV radiation from unpainted metal, concrete and other surfaces limits the effectiveness of masked welding operations

While welding operations have also been located away from walkways, aisles and other areas where other personnel work to reduce exposure to other personnel, however, this is often not practical when welding operations are performed in confined areas

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