Raymond Eisenstadt, professor of mechanical engineering emeritus, died on Monday at the age of 80.
He joined the Union faculty in 1954, and retired in 1988.
He received his bachelor's degree from City College of New York, and his master's and doctorate from Columbia University.
He was former chair of the Hudson-Mohawk section of the American Society of Mechanical Engineers. He published more than 28 technical papers. He was also named a National Science Foundation Faculty Fellow.
Survivors include his wife, Beverly Stein Eisenstadt; two sons, Neil and Lowell; and two daughters, Janice Cove and Marcy Freeman.
Burial was in Beth Israel Cemetery, Rotterdam.
Contributions may be made to Daughters of Sarah Nursing Home or to charity.