USA As Represented by Secretary of the Navy

Patrick John Earley

Elizabeth G Haslbeck

Ignacio D Rivera

Alexander Gregory Stevens-Bracy

Eric R Holm

Nathan H Gabriel

Derek M Michelin

Brandon Lawson Swope

Kody L Lieberman

Leonard David Sinfield

A filter for filtering storm water in an outfall pipe comprising: a line comprising an anchor attachment point at a proximal end of the line; and a plurality of individual treatment units (ITUs) securely connected in series to the line with a gap between adjacent ITUs, wherein each ITU has a size and shape capable of fitting inside the outfall pipe, and wherein each ITU comprises a mesh cage configured to filter contaminants out of the storm water.

In-pipe storm water filter

Exemplary inventive practice replicatively tests the effects of cleaning processes applied to marine hulls coated with biofouling-control substances. A sample (e.g., antifouling-coated panel) is coupled with a trolley that is linearly moveable via trolley wheels upon two parallel tracks provided along the length of an open rectangular box-shaped tank, partially filled with natural or artificial seawater. The cleaning element (e.g., brush bristles) points vertically upward in a stationary position atop a motorized cleaning unit installed proximate the bottom of the tank. In accordance with the trolley's horizontal movement, and while the sample and cleaning element are immersed in seawater, the sample traverses the cleaning element in a contactual manner that mimics underwater cleaning dynamics for a hull surface. Using sensory data, seawater portions are evaluated to relate the cleaning instrumentation and operation to the nature and degree of biocides and chemicals that, concomitant the cleaning, are released into the seawater.

Underwater ship hull cleaning tool test device

Growing community of inventors

San Diego, CA, United States of America

Patrick John Earley