Flat clinch type nail

Details Flat clinch type nail Flat clinch type nail

1981-08-31

1984-05-22

Holko, Thomas J.

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

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

Shank or penetrating end structure

411179, F16B 1500

Patent

active

044498780

ABSTRACT:
A clinch type nail having a generally flat shank with a pair of spaced penetrating portions having inner and outer walls that are disposed in angular relationship with each other and intersect along a generally straight line. The outer walls offer more resistance to penetration than the inner walls when the nail is driven which causes the penetrating portions to clinch inwardly toward each other and capture a plug of the material into which the nail is driven.

REFERENCES:
patent: 167424 (1875-09-01), Ballou
patent: 585437 (1897-06-01), Goldie
patent: 594757 (1897-11-01), Richard
patent: 692763 (1902-02-01), Bracey
patent: 931272 (1909-08-01), Columbia
patent: 940083 (1909-11-01), Stimpson
patent: 1930611 (1933-10-01), Freter
patent: 2287843 (1942-06-01), Turzicky
patent: 2366962 (1945-01-01), Gair
patent: 2624085 (1953-01-01), Feiner
patent: 2873447 (1959-02-01), Catlin et al.
patent: 3095777 (1963-07-01), Hallock
patent: 3143030 (1964-08-01), Muller
patent: 3292481 (1966-12-01), Couch
patent: 3871264 (1975-03-01), Hallock
patent: 4003286 (1977-01-01), Hallock
patent: 4193333 (1980-03-01), Hallock
patent: 4231280 (1980-11-01), Gross

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