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
1992-11-23
1994-06-21
Wilson, Neill R.
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...
411345, 411908, 2643288, F16B 2100, B29B 700
Patent
active
053224019
ABSTRACT:
The dowel comprises a body (1), with two elongate lateral arms (4), each having a groove, and a bore, opening out between the arms (4) for a fixing screw (22) to pass through, a rocker (2) sliding and pivoting on the arms (4) of the body (1) by means of two pivots (10) in their grooves, with a ramp which interacts with the end of the screw (22) in order to cause the rocker (2) to pivot, and an orifice for interacting, in the tilted position, with the fixing screw (22) and causing the rocker (2) to slide.
Shearable pins (19) are provided for temporarily holding the rocker (2), detachable under the action of the screw (22), and which, when the dowel is inserted into a wall, drive the rocker (2) with the body (1). The body (1) and the rocker (2) are moulded simultaneously a single piece from injectable material.
The dowel can be used for fixing a component to a gypsum board.
REFERENCES:
patent: 3288014 (1966-11-01), Mortensen
patent: 3707898 (1973-01-01), Holly
patent: 3782238 (1974-01-01), Polos
patent: 4186645 (1980-02-01), Zaydel
patent: 5067864 (1991-11-01), Dewey et al.
patent: 5108240 (1992-04-01), Liebig
Barthomeuf Jean-Paul
Vernet Franck
Societe de Prospection et d'Inventions Techniques
Wilson Neill R.
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