Mark L Bright

Address:

230 Shasta Ave, Moorpark, CA 93021

Phone:

8055297743

VIN:

1J8FA24127L215273

Make:

JEEP

Model:

WRANGLER

Year:

2007

US Patent:

8079126, Dec 20, 2011

Filed:

Jan 25, 2008

Appl. No.:

12/011369

Inventors:

Clifford C. Bampton - Thousand Oaks CA, US
Mark Lee Bright - Moorpark CA, US

Assignee:

Pratt & Whitney Rocketdyne, Inc. - Canoga Park CA

International Classification:

B21D 39/02
B65D 88/12

US Classification:

29463, 2989001, 220562, 220564, 60 3948, 2281121

Abstract:

A method of fabricating a rolling bladder propellant tank assembly includes providing a pair of half-domes comprising a nanophase metallic material and a bladder formed of a ductile metallic material. A bladder support ring extends from at least one of the pair of half-domes. The pair of half-domes are positioned together to form a cavity therein with a portion of the bladder trapped between the pair of half-domes adjacent to the bladder support ring, wherein the bladder is positioned within the cavity. A seal is formed between the pair of half-domes and the bladder by friction stir welding. A friction stir welding pin used to form the seal is aligned with the bladder support ring during the friction stir welding operation.