Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Securing means pivotable about axis transverse to fastener...
Patent
1986-06-23
1988-03-22
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Securing means pivotable about axis transverse to fastener...
411346, F16B 2100
Patent
active
047325208
ABSTRACT:
A non-rotating toggle bolt assembly which includes a collapsible toggle threadably received on the shank end of a bolt whose length is greater than the thickness of the wall for which the assembly is intended. When the toggle is collapsed, it assumes reduced dimensions to permit its passage through a hole drilled in the wall. On emerging from the hole at the shank end of the bolt, the toggle which is now displaced from the inner surface of the wall resumes its normal dimensions. The assembly is provided with a flexible strap extension, one end of which is coupled to the toggle and acts to prevent rotation thereof when, in the course of installation, the operator turns the bolt to advance the toggle on the shank into engagement with the inner surface of the wall to fasten the assembly thereon. The strap extension also functions when the toggle engages the inner surface of the wall to impose an off center locking force on the toggle to prevent subsequent loosening of the assembly as a result of vibratory and other forces.
REFERENCES:
patent: 2024871 (1935-12-01), Parsons
patent: 2061634 (1936-11-01), Pleister
patent: 2398220 (1946-04-01), Gelpcke
patent: 2567372 (1951-09-01), Gelpcke
patent: 2998743 (1961-09-01), Apfelzweig
patent: 3389631 (1968-06-01), Vaillancourt
patent: 3513746 (1970-05-01), Forsberg
patent: 4286497 (1981-09-01), Shamah
Ebert Michael
Wilson Neill
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