Break away nail

Details Break away nail Break away nail

1979-07-05

1981-07-21

McCall, James T.

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

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

Shank or penetrating end structure

411451, F16B 1500, F16B 1508

Patent

active

042791901

ABSTRACT:
A nail having a shank and head including one or more spaced grooves formed in the shank about its periphery, such that the nail can be fractured.
The groove may comprise any one of several configurations, e.g. rectangular, V-shaped, concave, etc. in cross-section. The essence of the invention is to provide the nail shank with a reduced circumference at one or more locations along its length so that the nail portion above the reduced portion nearest the head will break off on impact from the side, thus leaving the remainder of the nail shank in place.

REFERENCES:
patent: 391109 (1888-10-01), Bellanger
patent: 1428247 (1922-09-01), Morris
patent: 2874603 (1959-02-01), Boettcher
patent: 3099108 (1963-07-01), Kalkbrenner
patent: 3205757 (1965-09-01), Kuennen

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