Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1991-12-18
1993-08-24
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411181, 411113, F16B 3704
Patent
active
052383440
ABSTRACT:
A tee nut has a stem portion and a flange portion which are integrally made by sheet metal processing using an iron sheet. The stem portion has a crimping portion at an end opposite to the flange portion. The inner peripheral surface excluding the crimping portion is formed with a female thread. The flange portion is provided with a plurality of pawls formed by radially inwardly deforming part of the outer peripheral edge of the flange portion from the outside. The pawls inhibit rotation of the nut relative to an object to which the nut is secured. The pawls can be driven into the object concurrently with the crimping applied to the crimping portion. A radially outwardly open notch is formed in each pawl simultaneously with the deformation of the pawls.
REFERENCES:
patent: 945737 (1910-01-01), Anderson
patent: 1112525 (1914-10-01), Darling
patent: 1873894 (1932-08-01), Kimbell
patent: 2102558 (1937-12-01), Johnson
patent: 3125146 (1964-03-01), Rosan
patent: 3208135 (1965-09-01), Newbold et al.
patent: 3281171 (1966-10-01), Hughes
patent: 3358727 (1967-12-01), Hughes
patent: 3910331 (1975-10-01), Randall
patent: 4911592 (1990-03-01), Muller
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