Buoys – rafts – and aquatic devices – Water rescue or life protecting apparatus – Personal flotation device
Patent
1996-05-30
1998-04-14
Basinger, Sherman
Buoys, rafts, and aquatic devices
Water rescue or life protecting apparatus
Personal flotation device
441118, 441123, B63C 915
Patent
active
057385572
ABSTRACT:
The present invention features a pocket-sized, portable, flotation device that folds into a carrying case, which is the size of a cellular phone or camera. It can be carried upon a person in a shirt pocket or clipped to a waistline belt. The flotation device inflates into a diamond-shaped collar. The diamond shape of the flotation collar is uniquely constructed, so as to provide sufficient buoyancy to keep the user's head afloat. The diamond shape is also useful in preventing deflation of the device; it uniquely separates the flotation balloon into four separate compartments or cells, each of which is substantially sealed from adjacent compartments to prevent or reduce deflation of the adjacent cells through puncture or other mishap to one of the cells. The unique sealing construction is operative by the simple means of an approximately sixty-degree construction angle at the apex seam between the lobes. The acute angle between the divided lobes of the balloon effectively seals from each other the individual compartments on each lobe of the collar. Thus, full deflation is prevented, should one of the compartments become punctured.
REFERENCES:
patent: 731314 (1903-06-01), Malmqvist
patent: 2223880 (1940-12-01), Ardern
patent: 2774979 (1956-12-01), Moran
patent: 4560356 (1985-12-01), Burr
patent: 4887987 (1989-12-01), Kato
patent: 5393254 (1995-02-01), Ducheshe
patent: 5466179 (1995-11-01), Jeffrey, Sr.
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