Richard Lee Jetley

US Patent:

6513521, Feb 4, 2003

Filed:

Jul 17, 2000

Appl. No.:

09/617635

Inventors:

Harold L. Gier - Boulder CO
Richard L. Jetley - Longmont CO

Assignee:

Aerospace Design Development, Inc. - Boulder CO

International Classification:

A62B 706

US Classification:

12820121, 12820312, 12820326, 12820415, 12820417, 12820515

Abstract:

A system and method for storage and delivery of a cryogenic mixed gas is disclosed, the storage apparatus including a compact and lightweight dewar for containing cryogenic temperature mixed gas at supercritical pressure. Different heat exchangers associated with the dewar provide for heat input to the dewar to maintain gas therein in a single phase and provide continued expulsion energy. A backpack receives the dewar and includes means for quick connect of the dewar with an end use outlet, intermediate heat exchangers in the backpack conditioning the mixed gas for end use. No electrical input for fluid circulation is required.

US Patent:

55820166, Dec 10, 1996

Filed:

Jun 2, 1995

Appl. No.:

8/458797

Inventors:

Harold L. Gier - Boulder CO
Richard L. Jetley - Boulder CO

Assignee:

Aerospace Design & Development, Inc. - Boulder CO

International Classification:

F17C 902

US Classification:

62 502

Abstract:

A conditioning and loading apparatus and method are disclosed for gas storage at cryogenic temperature and supercritical pressure. The apparatus is self-contained and portable and includes first and second precooling stages utilizing heat exchange with vented system fluids to cool the gas received by the apparatus at supercritical pressure. A third cooling stage includes heat exchange in a liquid nitrogen bath before loading of the gas into a container.