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:
Apr. 03, 2012
Filed:
Aug. 07, 2009
Luc Baudelocque, Vernon, FR;
David Moulin, Paris, FR;
Luc Baudelocque, Vernon, FR;
David Moulin, Paris, FR;
Societe de Mecanique Magnetique, Saint Marcel, FR;
Abstract
A canned or sleeved rotary machine is equipped with a rotor () in contact with a particle-laden, acidic or corrosive gaseous atmosphere, and with a functional electrical assembly such as a magnetic bearing comprising a rotor armature () secured to the rotor () and placed in the gaseous atmosphere and a stator armature () secured to a stationary support () and positioned facing the rotor armature (), the stator armature () comprising at least one winding () and a ferromagnetic body () which are positioned in a protective metal enclosure comprising a solid part secured to the stationary support () or coincident therewith, a thin can or sleeve () and a hermetic passage () for wiring () supplying the windings (). A potting compound () fills residual internal gaps left in the ferromagnetic body (), the windings () and the wiring (), and a dead volume () in which the pressure is below atmospheric pressure is created inside the protective metal enclosure ().