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In January 1967, Pat left International Harvester Company to pursue a Ph.D. in mechanical engineering at the University of Wisconsin. There he met Beverly Collora, and they were married on August 30, 1969. Pat and Bev both earned doctoral degrees.

After being awarded his Ph.D. in 1971, Pat joined Cummins Engine Company in Columbus, Indiana, as a technical specialist in the advanced development area. During his 32 years at Cummins, he held a variety of technical and managerial positions, including manager of advanced development, director of turbo machinery research, director of performance and emissions development, and executive director of design and mechanical analysis.

In addition to his technical education, Pat earned an M.B.A. in administration from Indiana University in 1977 while working at Cummins. During his career at Cummins, he received numerous awards—the Outstanding Achievement Award from the University of Minnesota Board of Regents; the Distinguished Service Citation from the College of Engineering at the University of Wisconsin; and the Engine Manufacturers Association Outstanding Achievement Award.

Pat was elected to the National Academy of Engineering in 1995 and was an active member of the National Research Council’s Board of Army Science and Technology from 1999 to his death. Pat also served as a member of the Combustion Institute and the advisory board of the Combustion Research Facility of the U.S. Department of Energy (DOE), Sandia National Laboratories, and as a member of the Executive Advisory Board of the Department of the Army’s University Research Initiative and DOE’s Office of Heavy Vehicle Technologies. Pat was a registered professional engineer with the State of Indiana and a fellow of the Society of Automotive Engineers and the American Society of Mechanical Engineers (ASME).

In 1981, while Pat was still employed by Cummins, he and Beverly took sabbaticals from their jobs to teach at Churchill College at the University of Cambridge, in Cambridge, England. They were the first husband-and-wife team in the university’s history. In addition to his teaching assignments,

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