Panoramic-view diving mask with self-sealing, non-glued...

Details Panoramic-view diving mask with self-sealing, non-glued... Panoramic-view diving mask with self-sealing, non-glued...

2006-10-24

2006-10-24

Dang, Hung Xuan (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Floating or underwater type

C002S428000, C002S430000

Reexamination Certificate

active

07125115

ABSTRACT:
A panoramic-view diving mask with self-sealing, non-glued, removable watertight lenses. The lenses are self-sealed by an assembly process in which a layer of elastic gasket medium is applied or attached to either one or both beveled contacting edges of the frontal and side lenses, with the non-contacting edges having a lip so as to provide an enhanced seal between the lens and the frame. The lenses are assembled by pressing an assembly ring against the frontal lens and side lens simultaneously, forcing compression against the elastic gasket medium at the contacting edges of the two lenses and securing both lenses to the mask frame. The result is a watertight seal, achieved without adhesives, at the contacting edges of the front and side lenses. This process reduces storage space, packaging size and transporting costs during mass production. Also, this non-glued and removable self-sealing lens assembly allows individuals to easily replace a lens that is broken, scratched or corrected for near or far-sighted vision.

REFERENCES:
patent: 6341863 (2002-01-01), Chen-Lieh
patent: 6460995 (2002-10-01), Chen-Lieh
patent: 6921165 (2005-07-01), Feng

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