Audible signalling system for divers
First Claim
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1. An audible signalling system for divers, comprising:
- a tank having a supply of air under pressure contained therein and adapted to be carried by a diver;
means for delivering air from said tank to the diver for breathing;
a sonic oscillator mounted generally on said tank, said sonic oscillator including a housing defining a flow path for passage of air under pressure from said tank, and a valve means, mounted along said flow path, for generating an audible sound by oscillatorily contacting a valve seat defined by said housing, whereby an audible sound is resonated through said tank upon passage of air under pressure through said flow path; and
control valve means for selectively connecting said sonic oscillator flow path to said tank for passage of air under pressure through said flow path.
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Abstract
An audible signalling system is provided for us by divers or the like to provide a relatively loud audible signal which can be used to indicate diver position, to signal distress, etc. The preferred system utilizes an air horn carried by the diver and adapted for connection to a pressurized air supply carried by the diver for breathing purposes. When the air horn is connected to the air supply, the horn can be operated to produce a loud audio signal of substantial range which can be heard relatively easily over ambient noise such as wind, water and/or boat noise. In one form, a sonic oscillator for use in underwater signalling is also included.
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Citations
8 Claims
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1. An audible signalling system for divers, comprising:
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a tank having a supply of air under pressure contained therein and adapted to be carried by a diver; means for delivering air from said tank to the diver for breathing; a sonic oscillator mounted generally on said tank, said sonic oscillator including a housing defining a flow path for passage of air under pressure from said tank, and a valve means, mounted along said flow path, for generating an audible sound by oscillatorily contacting a valve seat defined by said housing, whereby an audible sound is resonated through said tank upon passage of air under pressure through said flow path; and control valve means for selectively connecting said sonic oscillator flow path to said tank for passage of air under pressure through said flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification