Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With moisture prevention or absorption
Reexamination Certificate
2006-02-07
2006-02-07
Mai, Huy (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With moisture prevention or absorption
C351S158000, C002S436000
Reexamination Certificate
active
06994433
ABSTRACT:
An eyewear has a gasket between the user and lenses that electrostatically filter the air flow of particulate while still permitting a gentle flow of air to maintain comfort to the wearer of the eyewear, and prevent fogging on the lenses. The electret filter material forms a perimeter around the eyes and lenses to remove, small to large particulates, from microns to millimeters. The filters can be formed with a choice of face contact gasket, baffles, coarse filters, and electret filter density. Baffles or coarse filters over the electret filters are used to protect the electret filter from damage from larger particles and transfer heat to the airflow.
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Perlman, M. M. and Reedyk, C. W.;Production and Charge Delay of Film Electrets; Journal of Electrostatics; 1968; 115(49) 86-89.
Kodera, Y. and Toyoda, T.;Charge Stability of Annealed Electrets; Charge Storage, Charge Transport, and Electrostatics; Edited by Wada, Perlman, and Kokada; Publication date unknown; pp. 113-117.
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DeJohn Marc D.
Hockaday Robert G.
Navas Carlos J.
Turner Patrick S.
Vaz Heathcliff L.
Energy Related Devices, Inc.
Mai Huy
Narasimhan Meera P.
Wray James C.
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