Watertight repairable electric plug

Claim 1

A PLURAL BLADE TYPE PLUG FOR A RECEPTACLE OF THE TYPE HAVING A THREADED CYLINDRICAL SHIELD AND ADAPTED TO BE SEALED WITH A MOISTURE SEALING CAP WHEN THE RECEPTACLE IS NOT IN USE, SAID PLUG COMPRISING: (A) A MOLDED PLUG BLADE SUPPORT OF DIELECTRIC MATERIAL, (B) A PLURALITY OF PLUG BLADES FOR ENGAGING THE RECEPTACLE TERMINALS MOLDED INTO SAID PLUG BLADE SUPPORT AND EACH EXTENDING THROUGH THE PLUG BLADE SUPPORT AND FORMED FOR CONNECTION TO RESPECTIVE CONDUCTORS, (C) SAID PLUG BLADE SUPPORT INCLUDING IN LONGITUDINAL SUCCESSION A FINGER GRIPPING SECTION BEYOND WHICH EXTEND THE PLUG BLADES, A RECESSED CIRCULAR STEP, AND A THREADED PORTION OF LESSER DIAMETER THAN THE CIRCULAR STEP, (D) A HOLLOW CYLINDRICAL PLUG BODY TERMINATING IN A FLANGE AT ONE END AND INTERIORLY THREADED AT THAT END FOR ASSEMBLY WITH THE THREADED PORTION OF SAID BLADE SUPPORT FOR SHIELDING THE BLADE TO CONDUCTOR CONNECTIONS, (E) AN ELASTOMERIC ANNULUS SURROUNDING THE CIRCULAR STEP OF SAID BLADE SUPPORT AND CONFINED BETWEEN THE FLANGE OF THE PLUG BODY AND THE FINGER GRIPPING SECTION OF THE SUPPORT, (F) A SCREW CAP SLIDABLE ALONG THE EXTERIOR OF SAID PLUG BODY FOR ABUTTING THE FLANGE AND FOR THREADED ENGAGEMENT WITH THE EXTERIOR OF THE RECEPTACLE SHIELD FOR COMPRESSING THE ELASTOMERIC ANNULUS BETWEEN THE FLANGE AND THE OPEN END OF THE SHIELD AFTER THE PLUG IS IN THE RECEPTACLE.