Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Multiple prong – e.g. – nailing plate – staple – etc.
Patent
1986-03-10
1987-07-21
Kundrat, Andrew V.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Multiple prong, e.g., nailing plate, staple, etc.
411912, 411478, 403402, 403294, F16B 1500
Patent
active
046814981
ABSTRACT:
The clip fastener comprises two mutually substantially perpendicular walls forming a corner and two ribs protruding perpendicularly with respect to the walls. The ribs are arcuate, and each have an intermediate portion which is located at a greater distance from the corner than end portions thereof.
REFERENCES:
patent: 1959360 (1934-05-01), Heyser
patent: 2398603 (1946-04-01), Soderberg
Josif Albert
Kundrat Andrew V.
Modiano Guido
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