Patent Number: 6,254,447

Title: Self-acting flotation device for flotation life preservers

Abstract: An inflation device is provided which is inflatable upon impact by water for marine flotation life preservers, wherein the tip of a striking pin is moved by means of a plunger which is driven by igniting a pyrotechnic charge in the direction of the sealing membrane of a pressure gas cartridge and against the force of a spring, and wherein the tip of the striking pin and the sealing membrane are of electrically conducting material, and wherein during a ready position of the device, the tip of the striking pin bears against the sealing membrane of the pressure gas cartridge and wherein the tip and the sealing membrane are in electrical connection with an indicator unit to form a closed electrical circuit, whereby the presence of an intact sealing membrane of the pressure gas cartridge, or the absence thereof, is detectable.

Inventors: Niemann; Wolfgang (D-21220 Seevetal, DE)

Assignee:

International Classification: B63C 9/18 (20060101); B63C 9/00 (20060101); B63C 009/125 ()

Expiration Date: 07/03/2018