William Scott Schrader

US Patent:

D3953602, Jun 23, 1998

Filed:

Oct 2, 1996

Appl. No.:

D/060618

Inventors:

William L. Schrader - Wildwood MO

International Classification:

0301

US Classification:

D 3260

US Patent:

56514743, Jul 29, 1997

Filed:

Jan 24, 1996

Appl. No.:

8/590965

Inventors:

Michael T. Callaghan - Florissant MO
William K. Schrader - Florissant MO
Robert E. Duckert - St. Ann MO

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

B65D 800

US Classification:

220565

Abstract:

The invention provides cryogenic structures, e. g. vessels or tanks joined by longerons, which are made of durable plastic composite materials rather than of metal, which vessels can contain cryogenic materials including fuel, without need of a liner or other weighty layers of the prior art. The structures are made of, e. g. a fiber network impregnated with a matrix of thermoset plastics, thermoplastics or a combination thereof. Thus the invention includes a cryogenic vessel of, e. g. 3 tank lobes, made of a composite of plastic reinforced with fibers, which lobes are joined together and supported by woven, cruciform shaped longerons which are also impregnated with plastic, to define a composite support member.