DONALD E. SMITH v. CALGON CARBON CORPORATION AND MERCK CO., INC. APPEAL OF CALGON CARBON CORPORATION. No. 89-3617.United States Court of Appeals, Third Circuit.Submitted Pursuant to Third Circuit Rule 12(6) March 14, 1990. Decided October 31, 1990. Page 1339 Walter G. Bleil, Reed Smith Shaw McClay, Pittsburgh, Pa., for appellant. Donald E. Smith, pro se. […]