SELF-TIGHTENING FITTING FOR ATTACHMENT OF METAL TO CARBON-CARBON STRUCTURES
Assignee
ROHR INDUSTRIES, INC.
Filed
Dec 27, 1989
Granted
Jul 20, 1993
Location
NORTH EAST MD US
Abstract
An attachment fitting for securing metal structures to carbon-carbon structures which tightens as temperature increases. The fitting is particularly useful in high temperature aerospace applications such as hypersonic aircraft. The fitting basically connects an upstanding carbon-carbon blade on a carbon-carbon structure to a metal clevis which fits snugly thereover. A ceramic bushing is fitted in a transverse hole in the blade. A transverse bolt hole extends through the clevis and bushing. A bolt in the bolt hole is tightened with one or more nuts to tightly press the clevis against the busing and blade. The bolt and nut material is selected to have a lower coefficient of thermal expansion than the clevis so that differential thermal expansion between clevis and bolt keeps the joint tight at elevated temperatures.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 18, 1990
Rescinded
Oct 26, 1992
Duration
2 years, 1 month
Inventor
- 1PAUL E. GRAY
Record Details
- Patent number
- US 5228795
- Application
- 00745739
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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