Spreading anchor

Details Spreading anchor Spreading anchor

1998-09-16

2000-05-16

Wilson, Neill

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having structure to restrict rotation of threaded, mating...

Comprising a thread lock

411 571, 411270, 411433, F16B 1306, F16B 3708, F16B 3936

Patent

active

060627840

ABSTRACT:
A spreading anchor including a sleeve (2) having an expansion region (3) provided with longitudinal slots (4), and an axial bore (5) having a conical shape in the expansion region (3) conically tapering toward a rear, with respect to a setting direction (5) end (6) of the sleeve (2), and a spreading member (8) having a conical profile at least along a portion of its longitudinal extent and displaceable in the axial bore (5) upon radial expansion of the sleeve expansion region (3), the spreading member (8) having a cylindrical through-bore (9) and being formed of tensioning segments (11-14) which extend in an axial direction and are held together with a possibility of a radial resilient expansion.

REFERENCES:
patent: 4865246 (1989-09-01), Miyanaga
patent: 5324150 (1994-06-01), Fullerton
patent: 5340252 (1994-08-01), Weddendorf
patent: 5846041 (1998-12-01), Bevan et al.

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