Mask and snorkel assembly
US5606967A · kind A · utility
Inventor
Key dates
| Filing date | Dec 1, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Dec 1, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C11/207
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mask and snorkel assembly including a float having a circular center recess and a center through hole at the center of the center recess, a snorkel retained in the center recess of the float by a locating block thereof and having a top end turned down and mounted with a ball valve and a bottom end inserted through the center hole of the float, a mask for covering over the eyes and the nose and having an air tube at the top, and an air hose connected between the bottom end of the snorkel and the air tube of the mask, wherein the ball valve is forced upwards by water to close the air passage of the snorkel when the top end of the snorkel is pulled under water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.