Underwater pinger automatic deployment switch

Details Underwater pinger automatic deployment switch Underwater pinger automatic deployment switch

1995-08-29

1997-11-04

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Transmitter systems

Animal control

43 92, 43 17, 43 171, H04B 102

Patent

active

056847556

ABSTRACT:
A position-dependent switch to sense deployment of an underwater pinger to enable operation upon deployment. During underwater deployment the pinger orients itself differently from an orientation chosen for the stowed (not deployed) condition. The position-dependent, or orientation-dependent, switch senses the pinger orientation and enables pinger operation automatically upon deployment. When the pinger is stowed the position-dependent switch disables the operation of the pinger.

REFERENCES:
patent: 4649744 (1987-03-01), Cotillier
patent: 5103432 (1992-04-01), Percy
patent: 5134592 (1992-07-01), Parra
patent: 5291682 (1994-03-01), Zaccheo

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