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:
Sep. 07, 2004
Filed:
Sep. 20, 2002
Paul Drube, Burnsville, MN (US);
Chart Inc., Burnsville, MN (US);
Abstract
A system that generates high pressure cryogenic gas includes a storage tank that contains a liquid cryogen and a feed line that supplies the liquid cryogen to a pressure pod. The pressure in the pressure pod gradually increases due to ambient heat to a first predetermined level. A regulator valve opens at the first predetermined level thereby directing the liquid cryogen to a heat exchanger where it is vaporized and directed back to the pressure pod to raise the pressure therein further. Once the pressure in the pressure pod reaches a second predetermined level, a dispense valve opens. The pressurized liquid cryogen is directed through the dispense valve to a vaporizer that vaporizes the high pressure liquid cryogen to a cryogenic gas that may be dispensed and stored in a tank.