Extension cord lock and keeper

Claim 1

IN COMBINATION, A PAIR OF MATING ELECTRIC PLUGS HAVING RESPECTIVE LINE CORDS CONNECTED AXIALLY THERETO, AND COOPERATING RETENTION MEMBERS ON THE LINE CORDS, EACH RETENTION MEMBER COMPRISING A HELICALLY WOUND SPRING SURROUNDING THE ASSOCIATED LINE CORD AND HAVING AN INNER END ADAPTED TO BEAR ON ITS ASSOCIATED PLUG, A PLURALITY OF RETENTION ARMS SECURED TO SPACED PORTIONS OF THE OUTER END OF THE SPRING AND EXTENDING SUBSTANTIALLY PARALLEL TO THE SPRING IN THE DIRECTION OF THE OPPOSING MATING PLUG, AND RESPECTIVE HOOK-SHAPED LOOPS ON THE ENDS OF THE RETENTION ARMS OPENING TOWARD SAID OUTER END, THE HOOKSHAPED LOOPS OF THE RETENTION ARMS OF THE RETENTION MEMBER ASSOCIATED WITH ONE OF THE LINE CORDS BEING TRANSVERSELY RECEIVABLE IN THE HOOK-SHAPED LOOPS OF THE RETENTION ARMS OF THE RETENTION MEMBER ASSOCIATED WITH THE OTHER LINE CORD, THE COMBINED AXIAL LENGTHS OF THE RETENTION ARMS BEING LESS THAN THE COMBINED NORMAL LENGTHS OF THE SPRINGS AND MATING PLUGS, WHEREBY THE SPRINGS ARE PLACED UNDER TENSION WHEN THE HOOK-SHAPED LOOPS OF THE OPPOSING RETENTION ARMS ARE LINKED TOGETHER.