The Hellan Strainer’s unique, patented, self-cleaning design was named after a Norwegian inventor, Haakon Hellan. In 1963, Cl ... eveland Gear Company, Inc. purchased the design and incorporated its own worm gear speed reducers to create a motorized strainer model. The complete Hellan Strainer line manufactured by Cleveland Gear Company, Inc. became a part of the Vesper family in 1980. In 2000, Hellan was made a subsidiary of Vesper Corporation as The Hellan Strainer Company. Hellan expanded their product offerings of hose reels in 2003 and Staples & Pfeiffer strainers in 2009. Today Hellan is one of many subsidiaries of Industrial Manufacturing Company (previously Vesper) that produce a wide variety of innovative products for industry Hellan Strainers are ISO9001 certified, meet all Navy Mil-Spec requirements, are approved by the American Bureau of Shipping and Lloyd’s Register, listed by Underwriters Laboratories and designed in accordance with API, ASME and PED read more