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:
Jun. 10, 2008
Filed:
Dec. 20, 2005
Thomas Saint-martin, Limours, FR;
Thierry Godart, Bonnelles, FR;
Jean-marie Penato, Les Essarts le Roi, FR;
Frédéric Dahan, Le Chesnay, FR;
Thomas Saint-Martin, Limours, FR;
Thierry Godart, Bonnelles, FR;
Jean-Marie Penato, Les Essarts le Roi, FR;
Frédéric Dahan, Le Chesnay, FR;
General Electric Company, Schenectady, NY (US);
Abstract
A valve is provided to fill a chamber for holding a rotation shaft of a rotating anode in an X-ray tube. The valve has a needle supported on a seat. The needle maintains the vacuum in the tube. A sleeve can engage in the valve. The sleeve is hollow and has a cavity. This cavity can be connected to the vacuum or to a bottle under vacuum filled with a lubricant liquid. The sleeve is used to handle the needle. The sleeve furthermore bears on a rim of the valve by an O-ring joint. This joint maintains the vacuum when the needle is raised and when the tube under vacuum is connected to the cavity of the sleeve.