David Woodroffe Allen

Title: Director, Officer, Principal Engineer
Company: Propulsor Technology, Inc.
Location: Bridgeville, Pennsylvania, United States

David Woodroffe Allen, Director, Officer and Principal Engineer at Propulsor Technology, Inc., has been recognized by Marquis Who’s Who Top Executives for dedication, achievements, and leadership in engineering.

Drawing upon more than five decades of practiced industry experience, Mr. Allen is an esteemed engineer and executive who has been serving Propulsor Technology, Inc., in Pittsburgh, PA, as director, officer and principal engineer since 1996. He commenced his career with Westinghouse Electric Corporation in Sharon, PA, holding the initial title of associate engineer from 1967 to 1970. Thereafter, he ascended the ranks to engineer for nine years, senior engineer for five years, senior computer scientist for six years, and principal engineer for four years. He concluded his tenure with Westinghouse in 1996 after serving two years as a fellow engineer.

A contributor of myriad articles to professional journals, Mr. Allen holds a Bachelor of Arts from Grinnell College and Master of Science from the University of Pittsburgh. Throughout his career, he has conducted research in current transformer transient performance, magnetic and electric field computation and analysis, computer-aided geometric design, computer vision, and smoothing and curvature analysis of triangle meshes. As such, in an effort to remain abreast of developments within the engineering industry, he is a lifetime member of the Institute of Electrical and Electronic Engineers, where he previously served as section secretary treasurer, and the Association for Computing Machinery.

As a testament to his success, Mr. Allen has garnered multiple accolades. Westinghouse Electric Corporation honored him with the George Westinghouse Signature Award of Excellence in 1989 and 1992, as well as the George Westinghouse Innovation Award in 1993. Most recently, he received the James S. Cogswell Award for Outstanding Industrial Security Achievement in 1998. He has been highlighted in several editions of Who’s Who in Finance and Business, Who’s Who in Finance and Industry, Who’s Who in America, Who’s Who in Science and Engineering, Who’s Who in the East and Who’s Who in the World.

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Lifetime Achievement 


“The Effects of Paralleling Current Transformers on Metering Performance,”  Missouri Valley Electrical Assoc. (MVEA), 1972.

“Methods for Estimating Transient Performance of Practical Current Transformers for Relaying,” IEEE Transactions on Power Apparatus and Systems, 1975 (with E. Conner and E. Wentz).

“Transient Performance of Current Transformers,” IEEE Special Report 76 CH 1130‑4 PWR 1976 (with members of IEEE Working Group on Transient Response of Current Transformers).

“Help for the Relay Engineer in Dealing with Transient Currents,” IEEE Transactions on Power Apparatus and Systems, 1982 (with E. Wentz).

“Current Transformer Output During a Transient,” Conference for Protective Relay Engineers, 1982.

“Determination of Current Transformer Transient Performance,” Minnesota Power Systems Conference, 1982 (with E. Wentz).

“Power Transformer Noise Abatement,” ESEERCO Seminar on Power Transformer Noise Abatement, 1982.

“Basic research on transformer life characteristics,” EPRI EL-2622, project 1289-2, final report, Sept. 1982 (with T. Alverson, E. Cham, R. Dresser, J. Kunes, G. Mitchell, C. Moore, H. Pearce, J. Robinson and H. Sheppard).

“The Short‑Circuit Radial Response of Core‑Form Transformer Coils,” IEEE Transactions on Power Apparatus and Systems, 1985 (with R. Holm, D. Hoecker and T. Alverson).

“EGRID: an Automatic Mesh Generator for Transformer Designs,” IEEE Transactions on Magnetics, 1985 (with L. Ware, V. Garg, R. Girgis and J. Weiss).

“Computer‑Aided Design Methods for Propeller Fillet Gages,” Naval Engineers Journal, May 1990 (with W. Vinoski and B. Overton).

“New Methods in Marine Propeller Inspection,” ASNE Technical Innovation Symposium, September 1994 (with A. Harsch and J. Machin).

“Computer-Aided Marine Propeller Inspection Data Analysis,” Naval Engineers Journal, March 1995(with A. Harsch and J. Machin).

“Propeller Geometric Parameter Extraction from Inspection Data Clouds,” Journal of Ship Production, November 2005 (with I. Howell, C. McIntyre, J. Reiser, J. Machin, C. Hettema, and C. Madden).

“Scan Image Registration in Industrial Inspection of Propeller Blades,” Proceedings of the SPIE, Volume 7239, pp. 72390K-72390K-12 (2009) (with J. Reiser, J. Machin, and C. Madden).

“Small-Scale Feature Removal in Propeller Inspection,” Journal of Electronic Imaging 21, 033002 (2012), DOI:10.1117/1.JEI.21.3.033002 (with J. Reiser, J. Machin, M. Koehler, and C. Madden).

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