Patent ID: 7960881

Claim:
An electric motor comprising: a stator; a rotor, the rotor having a rotor shaft; an interface plate, the interface plate being fixed to the stator and configured and adapted to couple the electric motor to a pump, the interface plate comprising a shaft opening, a cavity, a ventilation passageway, a fluid discharge portion, a drainage passageway, and an upwardly extending surface, the shaft opening extending horizontally through the interface plate, the rotor shaft extending horizontally through the shaft opening, the cavity being in fluid communication with the shaft opening, the ventilation passageway extending upward from the cavity and being in fluid communication with the cavity and with an environment that is external to the interface plate, the drainage passageway extending downward from the cavity and being in fluid communication with the cavity, the drainage passageway and ventilation passageway being configured and adapted in manner such that the drainage passageway is able to channel liquid downward from the cavity and to the fluid discharge portion via gravity while air is drawn into the cavity via the ventilation passageway, the upwardly extending surface extending upwardly from the fluid discharge portion and being positioned where the upwardly extending surface will inhibit liquid from migrating from the fluid discharge portion to the stator.