Apparatus to be worn as a necklace around the neck of a small child, which, when submerged in water, will inflate an float the child's head above water
US6767267B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 27, 2003 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | May 27, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C2009/133
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus to be worn as a necklace around the neck of a small child, which, when submerged in water, will inflate and float the child's head above water. The necklace will be composed of a gas generation chamber, two attached, inflatable balloons, a cosmetic sheath, or covering, and a small clasp to connect the necklace around the child's neck. When submerged in water a collapsible gas generation chamber, weighted on the bottom side, and an air bubble on the top side, will expand the gas generation chamber so that water is pulled, through a one-way valve, where it will start a reaction with anhydrous carbonate and acid, and from carbon dioxide gas. The gas will build pressure inside the chamber and push stoppers from the outlets into the balloons, and fill the deflated balloons, radially, away from the child's neck in order to float the child's head above the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.