Buoys – rafts – and aquatic devices – Water rescue or life protecting apparatus – Personal flotation device
Patent
1985-04-03
1986-11-11
Blix, Trygve M.
Buoys, rafts, and aquatic devices
Water rescue or life protecting apparatus
Personal flotation device
B63C 916
Patent
active
046220186
ABSTRACT:
A floatable collar having a floatable chin bar to secure the collar on the neck of the swimmer and having an inflatable and expandable section to provide greater buoyancy and stability to the swimmer.
REFERENCES:
patent: 1442746 (1923-01-01), Timberlake
patent: 2890467 (1959-06-01), Cowell
patent: 3633230 (1972-01-01), Horton
patent: 3842806 (1974-10-01), McBride
Anderson William B.
Avila Stephen P.
Blix Trygve M.
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