Indicator apparatus for the recovery of skiers buried by avalanc

Details Indicator apparatus for the recovery of skiers buried by avalanc Indicator apparatus for the recovery of skiers buried by avalanc

1989-05-15

1992-12-15

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340573, 340539, 342 22, G01S 1374

Patent

active

051721104

ABSTRACT:
Indicator apparatus used for recovery of skiers buried by avalanches, includes cooperating transmitters and receivers carried by skiers and by search and rescue personnel. The indicator device carried by a skier is actively powered and is combined to form a single unit with a ski pass.

REFERENCES:
patent: 3118145 (1964-01-01), Nee
patent: 4231114 (1980-10-01), Dolikian
patent: 4331957 (1982-05-01), Erander et al.
patent: 4354275 (1982-10-01), Bouyssounouse et al.
patent: 4476469 (1984-10-01), Lander
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patent: 4538059 (1985-08-01), Rudland
patent: 4598272 (1986-07-01), Cox
patent: 4736196 (1988-04-01), McMahon et al.
patent: 4822990 (1989-04-01), Tamada et al.
patent: 4837568 (1989-06-01), Snaper
patent: 4850031 (1989-07-01), Allsop et al.

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