发明名称 Draining structure for diving mask
摘要 A draining structure for diving mask includes a soft head cover fixedly connected to a rigid skirt framing a lens. The soft head cover includes a forward projected nose portion having a draining valve provided at a bottom thereof to be openable only in an outward direction. A draining guide is provided below the nose portion and has a hole formed directly below the draining valve to prevent water from sideward flushing open the draining valve when a diver jumps into water in a vertical position. An upward projected flange is provided at a rear end of the draining guide to guide air bubbles produced by the diver's expiration to two side outlets of the draining guide. The flange also reinforces the two side outlets and prevents them from deformation when the head cover is put on the diver's head and presses against the side outlets.
申请公布号 US6598239(B1) 申请公布日期 2003.07.29
申请号 US20030340249 申请日期 2003.01.09
申请人 HSIEH HSING-CHI 发明人 HSIEH HSING-CHI
分类号 B63C11/12;(IPC1-7):A61F9/02 主分类号 B63C11/12
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