Patent ID: 8857452
Filing Date: 2014-10-14
Classification: B01D,B08B

Abstract:
1. A spray device for use in cleaning residue from a filter apparatus, comprising: an elongated tubular stem for carrying a pressurized fluid therethrough, said elongated tubular stem including a spray member attached thereto; said spray member having one or more nozzles jetting the pressurized fluid therefrom to clean residue from the filter apparatus; a tubular sleeve and said elongated tubular stem being telescopic, whereby said elongated tubular stem can move with respect to said tubular sleeve to move said spray member along the filter apparatus to be cleaned; and a housing around said tubular sleeve and a captured chamber between said housing and said tubular sleeve, one or more purge ports in said tubular sleeve to provide a controlled flow of fluid between said tubular sleeve and said captured chamber.