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:
Jan. 08, 2008
Filed:
Sep. 03, 2004
Howard R. Hume, Littleton, CO (US);
Ronald R. Warnecke, Idaho Falls, ID (US);
Gary L. Palmer, Shelley, ID (US);
Leslie J. Fekete, Littleton, CO (US);
Howard R. Hume, Littleton, CO (US);
Ronald R. Warnecke, Idaho Falls, ID (US);
Gary L. Palmer, Shelley, ID (US);
Leslie J. Fekete, Littleton, CO (US);
NitroCision LLC, Idaho Falls, ID (US);
Abstract
According to an embodiment of the present invention, a rotating nozzle assembly includes a rotatable shaft having a bore to transport a cryogenic fluid therethrough. The rotatable shaft has an upstream portion associated with a feed chamber and a downstream portion. The nozzle assembly further includes a seal disposed within the feed chamber and surrounding at least a portion of the rotatable shaft, and a seal backup disk disposed proximate the seal. The seal backup disk includes an orifice surrounding an outside diameter of the rotatable shaft, the orifice having a diameter such that, when the cryogenic fluid is flowing through the bore of the rotatable shaft, the rotatable shaft can freely rotate while the seal prevents the cryogenic fluid from seeping past the seal.