Position indicating temporary buoy consisting of a telescopic collapsible pole

Claim 1

A temporary emergency buoy, to be put into service quickly, in an emergency situation, to mark the location of a man overboard, as from a sailing vessel, said buoy comprising an elongated hollow outer tubular pole section, closed at its bottom end and open at its top end; a plurality of telescoping tubular sections of progressively graduated diameter fitted in said outer section to permit concentric telescopic collapse within said outer tubular pole section, and said tubular elements being capable of slidingly extending to essentially co-axial extended disposition out of said open end at the top of said outer pole section, with a pennant or flag at the outer end of the outermost tubular section; a weight secured to said outer section adjacent its bottom end; and a float element secured to and encircling said outer section at a region intermediate the two ends of said outer section, to divide the section length into an upper part and a lower part, with the lower part of appropriate length to permit human gripping of said lower part with both hands to manipulate and swing the entire pole with a whipping action to develop a centrifugal force sufficient to cause said telescoped inner sections to be expelled to their extended position, out of said outer section, to a length that will make said flag visible against a background of high waves, and the friction between said telescopic sections being sufficient to hold said extended sections against return to concentric telescoped position by an external unintended force, such as gravity; the length of said lower part of the Outer section below the float and the amount of the weight on the end of said outer section being such that their product as a moment force, below water and about the float as a pivot, will be sufficient to hold the extended pole substantially erect for remote visibility; said tubular elements being manually telescopable into said outer section so the entire buoy structure will occupy a minimum of space, as for disposition on a sail-boat.