The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Nov. 13, 2008
Jacques Rene Bart, Soisy sur Seine, FR;
Didier Rene Andre Escure, Nandy, FR;
Cedric Magret, Paris, FR;
Stephane Rousselin, Hericy, FR;
Jacques Rene Bart, Soisy sur Seine, FR;
Didier Rene Andre Escure, Nandy, FR;
Cedric Magret, Paris, FR;
Stephane Rousselin, Hericy, FR;
SNECMA, Paris, FR;
Abstract
A device for detecting breakage of a turbomachine shaft is disclosed. The device includes a shaft having an upstream end and a downstream end; a rod having an upstream end and a downstream end, and placed coaxially inside the shaft, the downstream end of the rod being securely fastened to the downstream end of the shaft and the upstream end of the rod being free to rotate relative to the upstream and of the shaft; and a sensor suitable for detecting a difference in speed of rotation between the upstream end of the rod and the upstream end of the shaft.