Granted Patent
Utility
US 5,291,975 · App. 07/967,806
System and method for damping narrow band axial vibrations of a rotating device
Inventors:
Bruce G. Johnson, Richard L. Hockney, David B. Eisenhaure, Ralph Fenn
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Oct 27, 1992
Inventors
Bruce G. Johnson
Richard L. Hockney
David B. Eisenhaure
Ralph Fenn
Assignee (at issue)
Satcon Technology Corporation
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.