Self inflatable mini-collar life preserver

A self inflatable collar life preserver, for use in preventing drowning, which can be worn continuously by an individual around the neck, comprising means to deliver compressed air to expansible envelope means having two substantially identical major independent elements which are completely separable from each other at a reciprocal joint, and wherein the collar is equipped with a control-member adapted to assure the simultaneous inflation of said expansible envelope means of both independent elements, and

• wherein each independent element has a frame container equipped with at least one chamber filled with compressed air, and
• wherein each frame container is equipped with one expansible envelope which includes at least one chamber, and where the expansible envelope is attached at the exterior side of the frame container, and
• wherein each frame container at one end extends into a half of a hinge comprising means which will cooperate together with means of the second half of the hinge from the second independent element to form a coupling element for the collar, and
• wherein the frame container at the other end has a terminal head equipped with an assembly of a double-action push-pull button which will lock or unlock the collar, and
• wherein each independent element has the same number and same type of parts and wherein the terminal head and the half of the hinge of each element forms a common part of the frame container and
• wherein each frame container at the exterior at one side of its height has cut a slot lengthwise of its body, and,
• wherein each half of the hinge is equipped at the exterior side with a flange which together with the abutment on the side of the terminal head of the frame container form a lodgement for expansible envelope which when is not inflated is folded up in this lodgement in a closed position, and
• wherein each individual element has molded over its frame container a rubber surface by enveloping the frame, and wherein each expansible envelope is molded at the same time with the rubber surface which is molded over the frame.