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US 4,501,563 AGranted
Marker buoy
OwnerRobert W. Johnson, Richard S. Hobbsinventors
Life of this patent
Estimating the term…
Abstract
There is provided a marker buoy useful to indicate the location of an underwater structure. The buoy is made from a material having a density less than water, including first and second elongated side members and a central portion therebetween. The central portion receives an elongated twine having a weight attached to its far end. Each side member has a stud extending away therefrom at opposing ends of the buoy. The buoy automatically rotates to dispense the twine when the buoy is placed on the surface of water, and is adapted to be manually rotated by manipulation of the studs to retract the twine.
Claims6
A marker buoy comprising:
- a body made from a material enabling said body to float on the surface of a liquid;
- said body having first and second side members, and central portion therebetween;
- the length of said central portion being shorter than the length of either of said side members;
- said central portion being generally of a solid rectangular shape;
- each of said side members being in the shape of an elongated pontoon for stabilizing said marker buoy;
- the length of each of said side members being greater than its width;
- each of said members having first and second surfaces which taper inwardly toward said central portion;
- a first stud extending from said first side member and a second stud extending from said second side member;
- said first stud being near one end of said body and said second stud being near the opposite end of said body;
- said central portion receiving an elongated twine having a weight attached to its far end;
- said body automatically rotating to dispense said twine when said body is placed on the surface of a liquid;
- said body adapted to be manually rotated by manipulation of said studs to retrieve said twine;
- said first and second tapered surfaces of each of said side members adapted to guide said twine onto said central portion.
10 more elements
Dependencies are inferred from the claim text.