Spreading plug for anchoring in undercut boreholes

Details Spreading plug for anchoring in undercut boreholes Spreading plug for anchoring in undercut boreholes

1988-11-07

1990-02-27

Wilson, Neill R.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 55, 411 60, F16B 1306

Patent

active

049041347

ABSTRACT:
A spreading plug for anchoring in undercut boreholes comprises a plug shaft, a spreading body connected with the plug shaft, a thread connecting the spreading body with the plug shaft, a plurality of spreading segments which are spreadable over the spreading body, the spreading body having an end side, a safety element projecting from the end side of the spreading body for preventing rotation, the spreading segments being formed on the plug shaft and extending in direction toward the spreading body, the plug shaft having a mounting part facing away of the spreading body, and an element for cooperating with a rotary tool and provided on the mounting part of the plug shaft.

REFERENCES:
patent: 1379209 (1921-05-01), Phillips
patent: 4026186 (1977-05-01), Williams, Jr. et al.
patent: 4560311 (1985-12-01), Herb et al.
patent: 4636122 (1987-01-01), Rooney

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