Granted Patent
Utility
US 5,000,681 · App. 07/213,923
Apparatus and process for simultaneously positioning and oscillating a plurality of probes in the heat exchanger tubes of a nuclear steam generator
Inventors:
Paolo R. Zafred, David A. Snyder, John B. Gunter, William C. Ritz
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Jun 30, 1988
Inventors
Paolo R. Zafred
David A. Snyder
John B. Gunter
William C. Ritz
Assignee (at issue)
Westinghouse Electric Company LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.