Joints and connections – Interfitted members with external bridging piece
Patent
1976-12-30
1978-09-05
Shedd, Wayne L.
Joints and connections
Interfitted members with external bridging piece
403388, 403284, F16B 1904
Patent
active
041115805
ABSTRACT:
A fastening system having a continuously curved countersink section in an aperture through a plurality of workpieces, with a corresponding pin-fastener having a continuously curved head portion substantially congruent to the continuously curved countersink. Pin fasteners and bolts equipped with the continuously curved head surfaces taught herein when mated with a continuously curved countersink provide sufficient resistance to fastener pull through, cause cold working of the workpiece around the countersink, and impose an elastic load upon the workpiece and fastening strengthing the joint.
REFERENCES:
patent: 2991858 (1961-07-01), Taylor et al.
patent: 3384395 (1968-05-01), Brandestini
patent: 3512446 (1970-05-01), Sekhon
patent: 3748948 (1973-07-01), Schmitt
patent: 3936205 (1976-02-01), Speakman
patent: 3951561 (1976-04-01), Speakman
patent: 4012884 (1977-03-01), Pagel
patent: 4016703 (1977-04-01), Champoux et al.
The above-cited references all concern bolted joints having stress-corrosion and/or fluid-tight sealing of the fastener heads as a part of their design concepts.
Shedd Wayne L.
The Boeing Company
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