Automatic bilge drain stopper

Claim 1

A BILGE DRAIN DEVICE FOR CONTROLLING THE DRAIN OPENING OF A BOATR TRANSOM, SAID DEVICE COMPRISING IN COMBINATION: AN ELONGATE RECIPROCABLE ACTUATING STEM HAVING FORWARD AND REAR END PORTIONS, A SUPPORT MEANS FOR THE STEM COMPRISING A BODY HAVING A HEAD, A MOUNTING BASE, AND A NECK INTERMEDIATE THE HEAD AND THE MOUNTING BASE, BEARING, MEANS ON THE HEAD AND THE MOUNTING BASE, FOR SUPPORTING THE RECIPROCABLE STEM AXIALLY OF THE DRAIN OPENING, WITH THE REAR END PORTION OF THE STEM EXTENDED INTO THE DRAIN OPENING AND THE FORWARD END PORTION THEREOF ACCESSIBLE INBOARD OF THE BOAT, AN OUTBOARD BOUYANT VALVE MEMBER MOUNTED UPON THE REAR END PORTION OF THE STEM FOR MOVEMENT WITH THE STEM TO AND FROM SEATED POSITION UPON THE DRAIN OPENING OUTBOARD OF THE TRANSOM, AND COOPERATIVE MAGNETIC ELEMENTS CARRIED BY THE BODY AND THE STEM, FOR RELEASABLY HOLDING THE STEM AT A SHIFTED POSITION AT WHICH THE VALVE MEMBER SEATS UPON THE DRAIN OPENING TO CLOSE SAID OPENING.