Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Patent
1989-07-20
1990-06-19
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
411267, 411512, 411908, 411935, F16B 3708, F16B 3936
Patent
active
049348892
ABSTRACT:
A nut type plastic fastener has a vertical penetrating space and a plurality of holding pieces facing one another with the space. The facing surfaces of the holding pieces are provided with ridges for engagement with threads of a stud. The lower portions of the holding pieces are connected by means of small-thickness flexible pieces to the lower portion of the fastener body defining the space. When a stud is passed through a gap defined between the holding pieces, the holding pieces are separated from one another as a result of the flexing of the flexible pieces.
REFERENCES:
patent: 2814324 (1957-11-01), Shur
patent: 4671717 (1987-06-01), Fukuhara
patent: 4828444 (1989-05-01), Oshida
Nifco Inc.
Wilson Neill R.
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