Metallic staple particularly for the butt joining of elements ma

Details Metallic staple particularly for the butt joining of elements ma Metallic staple particularly for the butt joining of elements ma

1991-09-26

1993-03-16

Lindsey, Rodney M.

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

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

Of sheet metal

411920, F16B 1500

Patent

active

051939592

ABSTRACT:
The metallic staple particularly suitable for the butt joining of elements made of wood or the like, for example for manufacturing frames of paintings or other items, includes a rectangular lamina with longitudinal shapings and a transverse cutting edge. The shapings comprise a central V-shaped portion which is laterally blended with two wings which define respective inclined plane portions which diverge with respect to one another in the direction of insertion. The cutting edge has a two-sided taper.

REFERENCES:
patent: 725375 (1903-04-01), Stambach
patent: 2080962 (1937-05-01), Febrey
patent: 3431810 (1969-03-01), Black
patent: 3507384 (1970-04-01), Lippitt
patent: 4501102 (1985-02-01), Knowles
patent: 4514126 (1985-04-01), Knowles
patent: 4681498 (1987-07-01), Raffoni
patent: 4718804 (1988-01-01), Cassese

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