Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head
Patent
1993-05-12
1995-02-21
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Cap over the head
411383, 411910, 244 1A, 244132, F16B 1900, F16B 3502, B64C 112
Patent
active
053910281
ABSTRACT:
Novel fastener assemblies self-conforming to contoured surface panels being fastened to support members and minimizing radar cross-section by providing a non-reflective surface shield component over the basic fastening component or bolt. The invention provides a method for reducing the amount of microwave radiation normally reflected back to its source by aircraft panel fasteners or bolts and/or by the recessed walls of bolt access openings at contoured surface areas. The invention comprises a novel fastener assembly of a threaded shield bolt engaged within a main fastening bolt, the shield bolt having a flexible, surface-conforming head of a metal alloy having high temperature stability properties.
REFERENCES:
patent: 294524 (1884-03-01), Stiemke
patent: 4630168 (1986-12-01), Hunt
patent: 4711760 (1987-12-01), Blaushild
patent: 4884929 (1989-12-01), Smith et al.
patent: 4905931 (1990-03-01), Covey
patent: 4964594 (1990-10-01), Webb
patent: 5016015 (1991-05-01), Novak et al.
Anderson Terry J.
Hoch Jr. Karl J.
Northrop Grumman Corporation
Wilson Neill R.
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