Fastening element assembly

Details Fastening element assembly Fastening element assembly

1989-12-26

1991-01-22

Smith, Gary L.

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

Having separate expander means

With hole forming means

411 44, 411387, 411441, F16B 1304

Patent

active

049867091

ABSTRACT:
A fastening element assembly for use in a hard receiving material, such as concrete, masonry and the like, includes a sleeve and a fastening element or bolt. The sleeve forms a blind bore in the receiving material. At its leading end, in the insertion direction, the sleeve has a cutting edge. The sleeve is rotated by rotational force transmitted to engagement faces on the sleeve. After the borehole is drilled by the sleeve, the bolt is driven through the sleeve into the receiving material.

REFERENCES:
patent: 1996121 (1935-04-01), Phillips
patent: 3412594 (1968-11-01), Lund
patent: 3480306 (1969-11-01), Hsu
patent: 3851560 (1974-12-01), Yago
patent: 4257307 (1981-03-01), Regensburger
patent: 4287656 (1981-09-01), Gassman et al.
patent: 4293258 (1981-10-01), McKewan
patent: 4395174 (1983-07-01), Freeman
patent: 4480951 (1984-11-01), Regensburger
patent: 4518290 (1985-05-01), Frichmann et al.
patent: 4617692 (1986-10-01), Bond et al.
patent: 4673320 (1987-06-01), Froehlich

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