Accession Number:

ADD014074

Title:

Contemporary Composite Polar Boss.

Descriptive Note:

Patent, Filed 16 Oct 87, patented 28 Feb 89,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

• Reynolds, Hugh M.
• Kawabata, Curt M.

Report Date:

1989-02-28

Pagination or Media Count:

9.0

Abstract:

Composite polar bosses applied in rocket motor cases have very desirable characteristics. The lead time for a boss can be reduced from 6-12 months to 2-3 months. Weight savings for the boss are about 20-40. A composite polar boss which attaches closures to solid fueled rocket motor cases is disclosed. This polar boss is a carbonized fabrication which sits within a circumferential indentation within the motor case, and has a threaded inner circumference which permits the closure to be attached thereto. The materials of the boss are selected to permit a service temperature of 350 degrees F. Patents. JES

Descriptors:

• *ROCKET ENGINE CASES
• LEAD TIME
• PATENTS
• TEMPERATURE
• WEIGHT REDUCTION

Subject Categories:

• Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE