Low watch circle buoy system

Details Low watch circle buoy system Low watch circle buoy system

1999-05-17

2000-07-25

Swinehart, Ed

Buoys, rafts, and aquatic devices

Buoy

Marker buoy

441 24, 441 6, B63B 2200

Patent

active

060930691

ABSTRACT:
A low watch circle buoy system (LWCBS) uses global positioning system (GPS) P(Y) code coordinate sensing and transmission to mark its position in wr depths up to 40 feet to a positional accuracy of 3 meters or less. LWCBS maintains this position with a flotation unit on the water's surface that transmits signals representative of its location. A submerged unit is affixed to a surface at the bottom of the body of water and has outwardly reaching extensions that lie adjacent the surface. The extensions are tethered to the flotation unit by lines that are each connected between a distal part of each of the extensions and the flotation unit. A spool on each distal part each deploys and secures one of the lines to maintain the flotation unit substantially vertically above the submerged unit. These tether lines limit the range (watch circle) the flotation unit may traverse on the water.

REFERENCES:
patent: 1160122 (1915-11-01), Amberger
patent: 3295153 (1967-01-01), Dessau
patent: 5951346 (1999-09-01), Woodall, Jr.

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