Reinforced seal structure for an electrical penetration
 An improved seal structure for an electrical penetration in which at least one conductor is sealed within a tubular metal enclosure member by a compressive setting resinous potting material. A seal shroud extends from the interior surface of the metal enclosure member and acts as the seal surface against which the resin forms a compressive seal, as well as against the conductor member. An annular foraminous reinforcing member extends from the free end of the seal shroud to provide an increased strength seal. 
Westinghouse Electric Corporation
Y G
Y02E G21C
additional inventional
David James F.
Green Quirk