Nail with a head having an inwardly curved top surface
AssigneeIllinois Tool Works Inc.
InventorsPatrick Ryan, Genaro Cortez
Life of this patent
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Abstract
Various embodiments of the present disclosure provide a nail with a head having an inwardly curved top surface. In one embodiment, the nail has a longitudinal axis and comprises a head, a shank, and a tip. The head includes a top portion and a bottom portion. The top portion includes an inwardly curved top surface forming a partially spherical cavity, while the bottom portion includes a radially inwardly tapered annular bottom surface. The shank is integrally connected to and extends from the bottom portion of the head. The tip is integrally connected to and extends from the shank and terminates in a free end.
Claims12
A nail having a longitudinal axis and comprising:
- a head including a top portion and a bottom portion, the top portion including an inwardly curved surface forming a partially spherical cavity, the bottom portion including a radially inwardly tapered annular bottom surface;
- a shank integrally connected to and extending from the bottom portion of the head, the shank including a cylindrical shank portion and a ring shank portion including a plurality of rings adjacently arranged along a longitudinal axis, wherein each of the plurality of rings includes a first conical surface and a second conical surface that meet at an outer ring point, wherein for each of the plurality of rings the second conical surface meets the first conical surface of an adjacent one of the rings;
- and
- a tip integrally connected to and extending from the shank and terminating in a free end.
Dependencies are inferred from the claim text.