Matches 1 - 6 out of 6


Match Document Document Title
US20050145244 Inlet valve apparatus and valve system  
An inlet valve apparatus for use with a snorkel comprises a snorkel cap having an air inlet and an air outlet. An air passageway connects the air inlet and the air outlet in fluid communication...
US20070131227 Aquatic headgear  
An improved aquatic device for use with goggles features a support base sized and shaped to fit near the back of a user's head and is secured against the user's head by way of the goggle strap....
US20140190475 EXHAUST AIR TRANSFER DEVICE FOR OPEN SYSTEM UNDERWATER DIVING  
Apparatus for use during open system diving to support underwater human respiration. In accordance with various embodiments, an air supply provides a supply of air along a supply conduit. A...
US20140026886 METHOD AND APPARATUS FOR ALTERING AND OR MINIMIZING UNDERWATER NOISE  
To reduce or eliminate the startle response in aquatic life, embodiments of the present invention alter the sound produced by a diver's exhaled bubbles by adjusting up or down the frequency of the...
US20120260914 METHOD AND APPARATUS FOR ALTERING AND OR MINIMIZING UNDERWATER NOISE  
To reduce or eliminate the startle response in aquatic life, embodiments of the present invention alter the sound produced by a diver's exhaled bubbles by adjusting up or down the frequency of the...
US20170036745 Exhaust Air Transfer Device for Open System Underwater Diving  
Apparatus for use during open system diving to support underwater human respiration. In accordance with various embodiments, an open system breathing apparatus to support underwater human...
Matches 1 - 6 out of 6