Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed fastener element with securing means and biasing spring
Patent
1991-04-24
1992-03-10
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Headed fastener element with securing means and biasing spring
411177, 411349, 403349, 24297, 24590, F16B 2100
Patent
active
050945807
ABSTRACT:
Two plates are connected to each other through brackets and fixing pins. The bracket includes a base disc portion, a semi-cylindrical wall portion and a pair of projections. The wall portion is perpendicular to the base disc portion. The projections radially outwardly extend from diametrically opposed portions of the wall portion. One of the two plates has an opening. The opening has concentrically connected smaller and larger circular portions and a pair of notches. The notches are positioned at diametrically opposed portions of the smaller circular portion and have the same thickness as that of the smaller circular portion. The smaller and larger circular portions and the notches are so sized as to receive the semi-cylindrical wall portion, the base disc portion and the projections, respectively. The thickness of the smaller circular portion is the same as the distance between the projection and the base disc portion. The thickness of the larger circular portion is the same as that of the base disc portion.
REFERENCES:
patent: 3853414 (1974-12-01), Hirano et al.
patent: 4133560 (1979-01-01), Ishikawa et al.
patent: 4653708 (1987-03-01), Rich
patent: 4762437 (1988-08-01), Mitomi
patent: 4929116 (1990-05-01), Mahl
Ikeda Bussan Co, Ltd.
Wilson Neill R.
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