One piece two prong flat head nail type fastener

Details One piece two prong flat head nail type fastener One piece two prong flat head nail type fastener

1976-08-09

1978-03-21

Parsons, Jr., Marion

85 21, 85 28, F16B 1500

Patent

active

040796566

ABSTRACT:
A fastener of the nail type adapted to be made in one piece from a narrow strip of sheet metal and composed of a quadrilateral, preferably, generally square, flat head with a single pair of prongs integrally projecting generally perpendicularly from the underside of the head and struck therefrom so as to form a single pair of elongated spaced generally parallel slots in said head, which slots are staggered longitudinally relative to each other and have relatively adjacent lineally offset inner end portions at the medial portion of said head and relatively remote outer end portions adjacent a pair of diagonally opposed corner portions of said head and which extend at acute angles to adjacent sides of said head. The prongs are disposed at the inner ends of the slots in generally parallel lineally offset spaced relation to each other at the medial portion of the head and in relatively close proximity to and on opposite sides of the diagonal between a second pair of opposed corners of said head whereby each of the aforesaid first corners of said head may coact with said prongs to provide a three-point support for the fastener with its head at an acute inclination to an engaged generally flat surface. The fastener is adapted to rock to this position when struck by a hammer while it is resting on one of its prongs and on a side of its head adjacent the corner of said head forming one of the points of the aforesaid support.

REFERENCES:
patent: 363866 (1887-05-01), Walker
patent: 644471 (1900-02-01), Schon
patent: 1089878 (1914-03-01), Steinhauser
patent: 1889092 (1932-11-01), George
patent: 2293862 (1942-08-01), Sorenson
patent: 3204265 (1965-09-01), Fiekers et al.
patent: 3241424 (1966-03-01), Moehlenpah et al.
patent: 3731583 (1973-05-01), Jureit

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