Expanding anchor bolt assembly

Details Expanding anchor bolt assembly Expanding anchor bolt assembly

1980-07-07

1982-07-13

Britts, Ramon S.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 57, F16B 1306

Patent

active

043392172

ABSTRACT:
An expanding assembly to be inserted into and set within a preformed hole having a cylindrical portion extending inwardly from a wall surface and having a conical portion flared at a predetermined angle and located at a predetermined distance from the wall surface, the anchor assembly having a stud bolt carrying a cone at its inner end and being tensionable in the hole to displace the cone in the conical hole portion toward the mouth of the hole, the assembly having a sleeve surrounding the stud bolt and extending through the cylindrical hole portion into the conical portion to contact the cone, the sleeve being slotted to provide expanding legs which are longer than the conical hole portion, and the cone being almost as large in diameter as the cylindrical portion and being flared at an angle which is somewhat greater than said predetermined angle of the conical hole portion.

REFERENCES:
patent: 1850768 (1932-03-01), Peirce
patent: 4011786 (1977-03-01), Liebig
patent: 4137816 (1979-02-01), Gartner

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