Personal flotation device

Abstract

The invention, is an improved PFD is flexible tube shell with caps urged over and preferably sealed onto each end, each cap end having a clasp and preferably worn as a necklace by joining the clasps on each end. The flexible tube shell has a longitudinal groove and a long distensible sack with ends each having gas source. Said sack is disposed internally through the length of the tube. To activate, the PFD is streatched or jerked to pull the end caps off the tube. This releases gas from to fill sack expanding outward causing adequate pressure to cause the flexible tube shell to be split along the internal groove and is jettisoned. The PFD is a gas filled ring shape.

1 . In a personal flotation device, comprising: 
 a extendable sack, said sack having two ends is longitudinally disposed in a flexible tubular shell fitted with end caps, said end are secured internal to each cap,    a gas source having a release device is contained in said end of each of said cells, and each end cap has clasp feature and the invention is by manually bent around the neck and said end caps are joined by said clasps, whereby    personal flotation device achieved means pulling and stretching the invention causing said end caps to be pulled from said flexible tube shell, thereby    activating said gas source thereby releasing gas from said devices expanding said gas sack to inflate thereby splitting said flexible tube shell along said internal groove causing said flexible tube shell to be jettisoned.