Signals and indicators – Indicators – By location
Patent
1982-09-29
1985-07-09
Frankfort, Charles
Signals and indicators
Indicators
By location
116209, G08B 100
Patent
active
045275041
ABSTRACT:
Safety device for quickly locating a drowning victim underwater which essentially includes a hollow cap member open at one end, a threaded spool inside the cap member and containing a water-soluble marking dye, a solid, water-soluble closure member which fits over the cap open end and is adhered to the cap member and may also be adhered to one end of the spool, and a safety pin or similar member to attach the device to a potential drowning victim, the free end of the thread extending outwardly from the cap member with its free end tied to the safety pin or other attaching member which in turn is joined to one of said cap and closure members.
REFERENCES:
patent: 2464834 (1949-03-01), Taylor
patent: 2646019 (1953-07-01), Chetlan
patent: 2675776 (1954-04-01), Tuve
patent: 2941217 (1960-06-01), Hartl
patent: 2968819 (1961-01-01), Jenson
patent: 3121889 (1964-02-01), Gentile
patent: 3156933 (1964-11-01), Brooks
patent: 3334364 (1967-08-01), Foss et al.
Frankfort Charles
Shurtleff John H.
Worth W. Morris
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