Court of Appeals for the Eighth Circuit February 11, 2003, 02-2114 (Roger J. Bergfeld, Sr. Denise I. Bergfeld v. Unimin Corporation, Martin Marietta Corporation, Also Known as Lockheed Martin Corporation)

WOLLMAN, Circuit Judge.

Roger and Denise Bergfeld appeal the district court’s

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adverse grant of summary judgment on their products liability claim. The district court concluded that Roger Bergfeld’s (Bergfeld) employer, the John Deere Dubuque Works Foundry, was a sophisticated user of the silica sand that allegedly caused his injuries and thus that Martin Marietta Corporation

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(Lockheed Martin)