发明名称 |
Contemporary composite polar boss |
摘要 |
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.
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申请公布号 |
US4807531(A) |
申请公布日期 |
1989.02.28 |
申请号 |
US19870109557 |
申请日期 |
1987.10.16 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
发明人 |
REYNOLDS, HUGH M.;KAWABATA, CURT M. |
分类号 |
F02K9/34;(IPC1-7):F42B4/06 |
主分类号 |
F02K9/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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