Expansion anchor assembly

Details Expansion anchor assembly Expansion anchor assembly

1989-10-16

1991-01-08

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 68, F16B 1306

Patent

active

049830821

ABSTRACT:
An expansion anchor assembly to be secured in a borehole is made up of an expansion sleeve and an anchor rod. The expansion sleeve has a plurality of expansion sections arranged to be deflected radially outwardly by drawing an expansion cone on the front end of the anchor rod into the sleeve. Each expansion section has a circumferentially extending weakened section forming a bending location. The weakened section is located between a radially inner and a radially outer recess in the expansion section. Each of the recesses has a rectilinear base extending tangentially relative to the expansion sleeve axis with the bases located in a plane disposed normal relative to the expansion sleeve axis.

REFERENCES:
patent: 1604762 (1926-10-01), Slocum
patent: 2010553 (1935-08-01), McIntash
patent: 4678383 (1987-07-01), Bergner
patent: 4797044 (1989-01-01), Velasco

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