Granted Patent
Utility
US 4,586,870 · App. 06/609,901
Method and apparatus for regulating power consumption while controlling surge in a centrifugal compressor
Inventors:
William C. Hohlweg, Edward J. Condrac
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: May 11, 1984
Inventors
William C. Hohlweg
Edward J. Condrac
Assignee (at issue)
Elliott Turbomachinery Co., Inc.
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.