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US 4,058,048 AGranted
Clinchnail
AssigneeNordisk Kartro Aktiebolag
InventorBorje Erling Ingvar Sundberg
Life of this patent
Estimating the term…
Abstract
A clinchnail having an elongated shank with a head at one end and a tip portion at the other end thereof, wherein the shank is of essentially constant cross-sectional configuration throughout its length and the tip portion has a cross-sectional configuration differing from that of the shank, said tip portion being laterally offset from said shank with respect to the longitudinal axis of the shank.
Claims3
A clinch nail comprising:
- a. a single elongated shank having a smooth surface throughout its length and a constant cross-sectional configuration throughout said length;
- b. a head at one end of said shank;
- c. a tip portion at the other end of said shank, said tip portion including two converging surfaces merging to form a substantially straight leading line-like edge extending perpendicularly to, but laterally offset from, the center line of the shank, said line-like edge having a length exceeding the cross-section thickness of said shank, and said tip portion having a length between said constant configuration and said edge which is less than one and one-half times the cross-sectional thickness of said shank.
Dependencies are inferred from the claim text.