Anchor monitor and retrieval buoy

Details Anchor monitor and retrieval buoy Anchor monitor and retrieval buoy

1996-07-26

1998-06-16

Avila, Stephen

Buoys, rafts, and aquatic devices

Buoy

Marker buoy

441 26, 114293, 114297, B63B 2200

Patent

active

057660492

ABSTRACT:
This nautical buoy is used to monitor the surface projection of a deployed anchor by floating above the anchor. This is accomplished by a connecting tether-line (16) from the buoy to the trip-eye of an anchor (48) attached using a shackle (18). As the anchor is lowered using the vessel's normal ground tackle, the tether-line (16) is deployed by unreeling from the buoy until the anchor rests on the bottom. The tether-line (16) is then secured from further deployment using a tether-line restraining tab (19) and the buoy is tossed overboard so as to float above the deployed anchor. A steady or flashing, light can be affixed to the top of the buoy to identify its location in subdued-light conditions. The buoy can also assist in retrieving an anchor, while aboard the vessel, that has been fouled on bottom vegetation, rocks, and/or other debris. Retrieving the anchor is accomplished by pulling on the tether-line (16), thus applying tensional forces nearly opposite to the frictional forces fouling the anchor. The buoy consists of a rotating plate (22) upon which is fixed a flotation chamber (12) to provide positive buoyancy. A stationary base plate (14) is attached to the rotating plate (22) by two spindles (28 and 30) so that the rotating plate (22) can revolve about the stationary base plate (14). This assembly allows one end of a tether-line (16) to be attached to the buoy, reeled within the buoy for storage, and unreeled upon deployment.

REFERENCES:
patent: 1993974 (1935-03-01), McVicker
patent: 4501563 (1985-02-01), Johnson et al.
patent: 4808133 (1989-02-01), Gram et al.
patent: 5445103 (1995-08-01), Bleth et al.

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