Granted Patent
Utility
US 5,074,532 · App. 07/550,491
Electro-magnetic nozzle device for controlling a stream of liquid metal tapped from a crucible
Inventors:
Christian A. B. Ducrocq, Marcel Garnier, Pascal Rivat, Maurita Roscini
Patented Case
View Patent ↗
Granted: Dec 24, 1991
Filed: Jul 10, 1990
Inventors
Christian A. B. Ducrocq
Marcel Garnier
Pascal Rivat
Maurita Roscini
Assignee (at issue)
Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A
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.