Frank W. Wellons, 93, an engineering executive and former resident of the Philadelphia suburbs, died Friday, March 15, of pneumonia at Harborview Hospital in Seattle, Wash.
Mr. Wellons lived in Devon and West Chester for 72 years before moving to Seattle in January to be near his daughter, Amy.
He was recognized as an expert in roller bearings and was instrumental in developing a version of the buffering mechanisms that were used in aircraft turbine power plants.
He also helped develop international engineering standards for roller bearings, his family said.
Born in Wheeling, W. Va., Mr. Wellons graduated from Bellevue High School in Pittsburgh, where he grew up. He attended engineering school on a scholarship at Carnegie Mellon University and graduated in 1940 with a bachelor's degree in mechanical engineering.