Diving face mask
AssigneeTabata Co., Ltd.
InventorHiromasa Sato
Life of this patent
Estimating the term…
Abstract
A diving face mask comprises a purge valve assembly in a lower central area of a body frame. The purge valve assembly comprises a nose frame projecting from the body frame such that a V-shape cross-section is formed, a laterally elongated, and generally oblong valve which is configured to sit on a valve seat on a front wall of the nose frame for closing a laterally elongated, oblong opening passage. The purge valve assembly further comprises a nose cover having a configuration conforming to that of the nose frame for covering the nose frame, and a discharge opening defined between the nose frame and the nose cover.
Claims15
A diving face mask comprising:
- a body frame having a lower edge, and a curved portion upwardly contoured from the lower edge so as to define a contoured interior space for receiving a lens;
- and
- a purge valve assembly forwardly projecting from said body frame and comprising a nose frame, a valve and a nose cover,
- said nose frame being integrally formed with said body frame to forwardly project therefrom, said nose frame having a generally V-shaped cross-section to include a forwardly inclined first wall and a rearwardly inclined second wall intersecting to each other at an angle of from 70 to 120 degrees, said first wall having a front edge forwardly and downwardly extending from said curved portion of the body frame, said second wall extending rearwardly and downwardly from the front edge of the first wall to said lower edge of the body frame,
- said rearwardly inclined second wall having a valve seat and an opening passage passing through said valve seat, said valve seat being configured to receive said valve in water-tight relationship for closing and opening passage,
- said nose cover being disposed forwardly of said nose frame and having a forwardly facing arcuate surface configured to generally conform to a configuration of said nose frame for covering a front face of said nose frame, said nose cover having a lower edge spaced from said body frame for defining a discharge opening therebetween.
A diving face mask comprising:
- a body frame having a lower edge;
- a nose piece projecting from said body frame, said nose piece having a generally V-shaped cross-section to include a laterally elongated, front side wall forwardly and upwardly extending from said lower edge of the body frame, said front side wall having a laterally elongated generally oblong opening passage;
- a laterally elongated, generally oblong valve for closing said opening passage;
- a cover element having an edge adjacent to said lower edge of said body frame,
- a discharge opening disposed between the cover element and the body frame.
A diving face mask comprising:
- a body frame configured to define an interior space for receiving a lens;
- a purge valve assembly connected to said body frame for discharging accumulations of water and a diver's breath from the diving face mask;
- and
- a flexible skirt extending rearwardly from said body frame and having on a bottom surface thereof a pair of laterally spaced, upward projections for defining a space to accommodate a diver's nose therebetween, said flexible skirt further having a recessed portion having a V-shaped cross-section between said upward projections, said upward projections being rearwardly spaced from said body frame to define a bubble channel therebetween.
Dependencies are inferred from the claim text.