Product Description

Coppus Engineering Corporation (Worcester, Massachusetts) allegedly supplied small steam-turbine-driven fans, blowers, portable ventilating turbines, and turbine-drive packages to U.S. industry and the U.S. Navy from the 1940s through the 1980s. Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Coppus turbine-driven units carried compressed asbestos sheet gaskets at every casing flange, steam inlet joint, throttle body, and cover bolt, and braided asbestos packing at every rotating gland.

The gasket set allegedly had to be renewed at every casing opening, gland repack, or throttle rebuild. Workers scraped the old asbestos gasket from the mating surface with knives and wire brushes, cut a fresh gasket from asbestos sheet stock, and installed it — releasing dry chrysotile fibers into the working atmosphere. Portable Coppus ventilators used to purge tanks, holds, and confined spaces added a further exposure pathway when their own turbine-drive gaskets were serviced.

Workers Exposed

  • Millwrights overhauling Coppus turbine-driven fans and blowers in mills, refineries, chemical plants, and power stations.
  • Pipefitters (UA) breaking steam supply lines into Coppus turbine drives and returning them to service.
  • Machinist’s mates (MM) servicing Coppus units aboard U.S. Navy vessels and at Navy yards.
  • Boiler tenders (BT) working the associated forced-draft blowers and combustion-air fans.
  • Industrial mechanics performing routine gland repacks and gasket renewals on Coppus units.

Bystanders in the immediate work area were exposed to airborne fibers released by gasket scraping and packing removal.