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:
Jul. 12, 1994
Filed:
May. 21, 1993
Jean-Louis Charbonnel, Le Mee sur Seine, FR;
Jean-Christophe M Cordier, Melun, FR;
Corrine G Delahaye, Mormant, FR;
Jean-Claude L Delonge, Corbeil Essonnes, FR;
Guy F Dusserre-Telmon, Sivry Courtry, FR;
Jean-Pierre Galivel, Savigny le Temple, FR;
Laurent Gille, Melun, FR;
Jacky S Naudet, Bondoufle, FR;
Didier M Nouveau, Dammarie les Lys, FR;
Thierry H Tassin, Brunoy, FR;
Gerard R Vermont, Coubert, FR;
Abstract
A device for ensuring the sealing in a rotary machine between a rotor and fixed blade stages. Blade edges are joined by rings carrying circular seals in slots. Springs force the seals in the longitudinal direction towards transverse faces of reinforcements of the rotor. A turbulence-free gas flow is obtained as a result of the total seal obtained by the seals (19). Moreover, the rotor can be constructed with a substantially rectilinear ferrule which only induces limited stress concentrations.