Gentex Corporation

Leonard Peter Frieder, Iii

Robert A Sallavanti

Matthew Anthony Hanudel

A visor system for a helmet includes a lens sized to extend across at least a portion of a user's face, a frame secured along a top portion of the lens and configured to receive and abut against a front surface of the helmet, a first fastener coupled to a first end of the frame by a first flexible attachment, and a second fastener coupled to a second end of the frame by a second flexible attachment. The visor system may further include a first anchor releasably securable to the first fastener, the first anchor being mountable onto a first portion of the helmet, and a second anchor releasably securable to the second fastener, the second anchor being mountable onto a second portion of the helmet.

Helmet mounted visor

Selection criteria for dyes that predicts efficiency and performance for plastics welding. A first stage quantitative calculation screens dyes that possess an absorption band that can be matched to a laser that is suitable for plastic welding. It also identifies absorption troughs in the visible spectrum and establishes relationships between the relative optical densities of the absorption band and trough. A second stage quantitative calculation screens dyes for their contribution to the transparency of the substrate. By combining these two stages, the usefulness of a candidate dye can be quickly, easily and inexpensively determined.

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Clarks Summit, PA, United States of America

Leonard Peter Frieder, Iii