Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Made up of plural expansible segments or sections
Patent
1992-01-21
1993-03-16
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Made up of plural expansible segments or sections
411 45, 411348, 411383, F16B 1304, F16B 3502
Patent
active
051939568
ABSTRACT:
A self-retaining adjustable diameter bolt with an adjustable nut including a bolt having a head, a shank, and a threaded end adapted to be inserted into a hole in an installation for subsequent coupling to an nut assembly. The bolt includes a pawl with a plurality of bushing segments mounted on the bolt shank, the pawl extending through an opening in the bolt adapted to engage the segments to stop withdrawal from the bolt. The nut assembly has a first portion threaded onto the threaded end driving the segments forward and filling the spacing between the hole and bolt shank. The nut assembly includes a second portion rotatable on the first portion which can be tightened against the panel installation. In this manner, full radial expansion of the segments takes place before the first nut portion bottoms out against the installation and the second nut portion can be then tightened against the installation.
REFERENCES:
patent: 2571265 (1951-10-01), Leutven
patent: 2734749 (1956-02-01), Benjamin
patent: 2747428 (1956-05-01), Peter et al.
patent: 3192820 (1985-07-01), Pitzer
patent: 4507034 (1985-03-01), Lew et al.
patent: 4759671 (1988-07-01), Duran
Avibank Mfg. Inc.
Wilson Neill R.
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