Patent ID: 6966092
Filing Date: 2005-11-22
Classification: E04H,Y10T

Abstract:
1. An apparatus for cleaning surfaces submerged in a fluid, the apparatus comprising: a housing having a single flow passage extending from an inlet to an outlet for a flow of fluid and debris therethrough, wherein a partition wall extends into the single flow passage such that the flow of fluid and debris are constrained to pass through an opening formed thereby and pass to the outlet, which outlet is adapted for connection to a suction source; a flexible plate carried proximate the inlet for engaging a submerged surface to be cleaned; a valve pivotally carried within the flow passage for interrupting fluid flow therethrough during an oscillation thereof between a seated position for interrupting the flow therethrough to an unseated position permitting the flow therethrough, wherein a suction of the fluid through the single passage causes an oscillating of the valve between the seated and the unseated positions and a movement of the housing across the submerged surface to be cleaned; and a retractable element moveable between a valve distal end and the partition wall for reducing a gap formed therebetween, thus substantially limiting the flow of the fluid and debris to only one side of the valve.