Anchoring device

Details Anchoring device Anchoring device

1990-09-13

1991-12-03

Lindsey, Rodney M.

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

Impact driven fastener, e.g., nail, spike, tack, etc.

411447, 411451, F16B 1500

Patent

active

050695886

ABSTRACT:
An anchoring device having a head and a shank to be forcibly driven into a hole defined within concrete or is disclosed. The shank has proximal, transitional, and distal portions defining respective axes that do not coincide when the shank is unstressed and further defining proximal and distal elbows. Notches enhancing frictional engagement between the shank and the hole wall are formed along convex surfaces of the elbows, as well as long substantially cylindrical surfaces of the proximal, transitional, and distal portions of the shank.

REFERENCES:
patent: 1798273 (1931-03-01), Pleister
patent: 2501701 (1950-03-01), Tinnerman
patent: 3518915 (1970-07-01), Gutshall
patent: 4037512 (1977-07-01), Sundberg

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