Fastener-sleeve assembly and strip of collated fasteners

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Having means to facilitate explosive driving

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Details

411442, 411544, 411923, 206347, F16B 1500, F16B 1508

Patent

active

054433452

ABSTRACT:
A strip of collated fasteners is disclosed, which comprises a plurality of fasteners and a carrier molded from a polymeric material. Each fastener has an elongate shank, which has a pointed end, and a head. The shank of each fastener defines an axis and has two portions of different diameters, namely a thicker portion adjoining the head and a thinner portion adjoining the pointed end, and a shoulder joining the thicker and thinner portions. The carrier comprises a separate sleeve associated with each fastener and is frangible between the separate sleeves. A representative sleeve is disposed around the shank of the associated fastener and has an initial axial length, which the representative sleeve assumes when disposed around the shank of the associated fastener but not compressed axially, and a critical axial length, at which the representative sleeve splits when disposed around the shank of the associated fastener and compressed axially. The thicker portion of the shank of each fastener has an axial length between the initial and critical lengths of the associated sleeve. The representative sleeve has a pair of outwardly opening, similarly curved, concave recesses, each having an open window, from which a portion of the shank of the associated fastener is visible.

REFERENCES:
patent: Re32452 (1987-07-01), Nikolich
patent: 4403722 (1983-09-01), Nikolich
patent: 4483280 (1984-11-01), Nikolich
patent: 4932821 (1990-06-01), Steffen et al.
patent: 5069340 (1991-12-01), Ernst et al.
patent: 5292216 (1994-03-01), Van Allman

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