Patent ID: 8512074

Claim:
An electrical submersible pump system (ESP) comprising: a pump; an electric motor operably coupled to the pump; and an apparatus for forming a seal around at least one conductor connected to the motor defining a pothead connector, the pothead connector comprising a housing having a pothead assembly cavity and a pothead assembly contained within the housing, the pothead assembly comprising; a first insulator having a first bore extending therethrough having a generally cylindrical shaped portion and a generally conical shaped portion adjacent thereto; a second insulator having a second bore extending therethrough and having a generally cylindrical portion and a generally conical shaped proximal portion adjacent thereto, the conical shaped portion of the second bore registering with the cylindrical shaped portion of the first bore to define a boot seal cavity; and a boot seal for receiving, a conductor positioned within the boot seal cavity, the boot seal comprising a substantially cylindrical shaped medial outer surface portion, a tapered proximal outer surface portion, a tapered distal outer surface portion, and a throughbore sized to sealingly engage inner surface portions of the hoot seal with outer surface portions of the conductor and to sealingly engage with inner surface portions of the first and the second insulators forming boot seal cavity.