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. 23, 2002
Filed:
Feb. 07, 2001
Tibor Istvan Lak, Huntington Beach, CA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A system for providing cryogenic sub-critical liquid oxygen and liquid hydrogen to storage tanks and payloads contained inside the payload bay of a space vehicle is described. The system provides for transferring cryogenic fluid from a supercritical storage tank to a subcritical storage tank or payload in a zero-g environment, wherein the H and O ignition hazard has been eliminated due to the low vacuum pressure operating environment. The system includes an external heat exchanger, for example, a parallel flow concentric tube design, and a temperature control system for re-condensing the two-phase transfer fluid expelled from the supercritical storage system into a single phase, sub-cooled cryogenic fluid which is then introduced into and stored within the subcritical storage tank.