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Alan James Evans Patents |
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Inventor: Evans; Alan James
Address: Gosnells, AU
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5893362 |
Snorkelling device |
April 13, 1999 |
| A snorkelling device for supplying air to a person by unassisted lung function to a depth of approximately one meter. The device may be used upon or below the surface of the water. It comprises an air intake incorporating a float valve (14) for closing the air intake when it becomes |
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