Method of making a fastener strip

Details Method of making a fastener strip Method of making a fastener strip

1977-11-28

1980-12-09

McCall, James T.

Brushing, scrubbing, and general cleaning

29417, 29432, 151 4172, 141 4173, B21D 5320, F16B 3928

Patent

active

042375673

ABSTRACT:
A strip of fasteners such as pierce nuts is formed from a metal blank with no scrap resulting from the provision of a spacing between adjacent nut bodies, and without the difficulty and expense incident to attaching nut bodies to connecting elements. The body portion of a laterally flanged blank is severed in the transverse direction to separate nut bodies from the blank without fracturing the flanges. The flanges are severed in the longitudinal direction to form severed longitudinally extending flange segments integral at both ends with unsevered flange segments. When the flanges are straightened, the stretching of the severed flange segments resulting from shearing provides a spacing between adjacent nut bodies in the strip. The strip includes spaced apart nut bodies interconnected by continuous lateral flanges. The flanges include unsevered lateral flange segments integral with both sides of each nut body, and severed flange segments integral at both ends with the unsevered flange segments. Elongation of the severed flange segments provides spacing between adjacent nut bodies.

REFERENCES:
patent: 1400244 (1921-12-01), Sleffel
patent: 1664480 (1928-04-01), Murphy
patent: 2206740 (1940-07-01), Burke
patent: 2254644 (1941-09-01), Cousino
patent: 2279574 (1942-04-01), Langmaid
patent: 3704507 (1972-12-01), Grube
patent: 3775791 (1973-12-01), Grube
patent: 3786528 (1974-01-01), Sol
patent: 3877133 (1975-04-01), Grube
patent: 4119827 (1978-10-01), Lenox

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