Safety marker for divers

Claim 1

A water safety marker for divers, comprising: (a) a float having a top and a bottom and a water line; (b) a mast having a top mounted on said top of said float projecting a substantial distance above said top of said float and above said water line; (c) ballast in said bottom of said float for maintaining said float upright in said water and positioned below said water line; (d) light signaling means mounted on said mast top for signaling to a surfaced object; (e) a float light signaling means for signaling to said divers mounted in said float and having at least a portion extending below said ballast and substantially below said water line; (f) electronic detection means mounted on said top of said mast and below said light signaling means for generating a signal when the presence of the approach of said surface object is detested; (g) means for shaping said signal positioned in said float; and, (h) control means associated with said signal shaping means for intermittent operation of both said mast top light signaling means and said float light signaling means when detection of a surface object occurs.