John W. Panaseny is the new president of Oystar USA. Bill Schaeffer was promoted to vice president of sales within the Food Ingredients division of Sargento Foods Inc., Plymouth, Wis.  Fristam Pumps hired Thomas Gavinski to oversee its North, South and Central American sales departments as well as the customer service department.

Dave Buteyn joined the technical sales staff of Vivolac Cultures Corp. Harpak-ULMA appointed John Sirridge as regional sales manager for the central U.S. territory.