Patent ID: 6729847
Filing Date: 2004-05-04
Classification: F04D

Abstract:
A bilge pump, comprising:an outer housing having an interior wall separating a first cavity and a second cavity, the first cavity having a hub portion, the second cavity adapted to receive water defining a water line therein; an on/off electrical switch located within the first cavity; a single-piece float located within the second cavity and having a float body and an actuator arm extending outwardly therefrom, the float operably connected with the electrical switch through an aperture in the interior wall such that movement of the float between a first position and a second position actuates the electrical switch, wherein the float is configured such that the aperture within the interior wall remains above the water line during operation of the pump; a motor including a motor housing having a hub and a power shaft extending from the hub, the motor located within the first cavity of the outer housing such that the hub of the motor housing is located within the hub portion of the first cavity; and a cup-shaped seal member having a centrally located aperture receiving the power shaft therethrough, the seal member closely received about the hub of the motor housing and closely received within the hub portion of the first cavity, thereby providing a watertight seal about the power shaft and between the outer housing and the motor housing.