Nail with expansion region

Details Nail with expansion region Nail with expansion region

1994-04-18

2000-03-28

Saether, Flemming

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

Headed fastener element

Having resilient securing structure on shank

411447, 411451, 411452, F16B 1900, F16B 1500

Patent

active

06042317&

ABSTRACT:
A nail comprises a shank having a front end face, two bowed expansible arms forming an expansion region and having a free space therebetween, and a straight shank portion located before the expansion region, the free space being formed as a longitudinal channel which starts from the straight shank portion and extends to the front end face of the shank.

REFERENCES:
patent: 171447 (1875-12-01), Timby
patent: 241965 (1881-05-01), Godley
patent: 303663 (1884-08-01), Perkins
patent: 373291 (1887-11-01), Higgs
patent: 456723 (1891-07-01), Harvey
patent: 2006813 (1935-07-01), Norwood
patent: 2251202 (1941-07-01), Purtell
patent: 2724303 (1955-11-01), Holcomb
patent: 3476008 (1969-11-01), Pearson

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