Patent ID: 8221099
Filing Date: 2012-07-17
Classification: F04B

Abstract:
1. A fluid pump assembly for performing in a damp environment comprising: a pump member that drives a quantity of fluid; a pump housing that encloses the pump member, and comprising a breather hole for circulating cooling air around the pump member during operation; a cover that substantially covers the breather hole and defines a tortuous path that enables air to circulate through the breather hole while preventing entry of water thereto; and, wherein the pump housing is generally cylindrical and wherein the breather hole lies along a cylindrical surface of the pump housing; wherein the cover is substantially arcuate and fits around an exterior portion of the generally cylindrical pump housing; wherein the substantially arcuate cover defines an arc of less than 360 degrees; a spray nozzle that extends from the pump member; and wherein the cover comprises a notch that engages a periphery of the spray nozzle and defines a passage therethrough, wherein the notch and the pump housing recess are in fluid communication, so as to define the tortuous path.