Court of Appeals for the Third Circuit July 8, 1998, 97-1693 (Aqualon Company v. Mac Equipment, Incorporated, & Third Party and C.W. Nofsinger Company, Third Party)

Affirmed by published opinion. Judge

1

MURNAGHAN wrote the opinion, in which Judge KEELEY and Judge MOON joined.

OPINION

MURNAGHAN, Circuit Judge:

Aqualon Company, a chemical manufacturer, asked MAC Equipment, Incorporated, to produce rotary valves, also called airlocks, for use in a pneumatic conveying system. The system was designed by C.W.