Buoys – rafts – and aquatic devices – Buoy – Marker buoy
Patent
1998-05-15
1999-09-07
Avila, Stephen
Buoys, rafts, and aquatic devices
Buoy
Marker buoy
441 26, B63B 2216
Patent
active
059477806
ABSTRACT:
A marker for use by boaters to mark spots in a body of water includes a water-tight, hollow cylindrical main body that floats and which serves as a buoy member. The main body is capped at its opposite ends by end caps that are apertured. An elongate hollow tube is positioned within the hollow interior of the cylindrical main body so that it extends between the apertures. A spool member having a preselected length of line coiled thereabout is rotatably mounted atop the upper end cap and line extends from the spool through the interior of the hollow tube to the bottom of the body of water when the marker is in use, there being a weight at the free end of the line. Beads of progressively larger size relative to the free end of the line are secured to the line, each bead being positioned at a preselected length of the line that represents a particular water depth. A slide plate is slidably mounted to the bottom end cap in alignment with the hollow interior of the tube and bores of differing sizes are formed in the slide plate, each size corresponding to a bead and being slightly smaller than its corresponding bead to prevent its passage through the slide plate. The user aligns a preselected bore, representing a known water depth, with the hollow interior of the tube and unreels the line until a bead is stopped from passing through its associated bore.
REFERENCES:
patent: 5360359 (1994-11-01), Reynolds
patent: 5376035 (1994-12-01), Forrest
patent: 5449308 (1995-09-01), Thompson
Conte Michael D.
Kellner Ronald E.
Avila Stephen
Marksall Company
Miller Stanley M.
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