Multipurpose flotation blanket
US5653618A · kind A · utility
Inventor
Key dates
| Filing date | Sep 12, 1994 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Sep 12, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B35/38
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A multipurpose flotation blanket including a blanket body formed of two opposite flotation layers peripherally sealed and covered with a water proof covering and defining an inflatable air chamber, a handle unit detachably fastened to the blanket body for carrying by hand when the blanket body is folded up and arranged into the form of a hand bag, and an air valve assembly made on the blanket body for letting air be driven into or out of the air chamber, and wherein when the two opposite flotation layers of the blanket body are pulled apart, a current of air is inducted into the air chamber to inflate the blanket body; the air valve assembly has an inlet nozzle, a plug rod fitted into the inlet nozzle to seal the air passage, and a pull strip connected to the inlet nozzle for pulling the inlet nozzle away from the plug rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.