Fastener for joining articles

Details Fastener for joining articles Fastener for joining articles

1974-05-21

1976-06-22

Steiner, Arthur J.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291935, 85 19, 85 63, 151 145, 151 22, F16B 3930

Patent

active

039648796

ABSTRACT:
A fastener for joining articles by insertion into a cavity. The fastener includes an elongated portion having a plurality of parallel ridges that are also parallel to the longitudinal axis of the elongated portion. The grooves between the ridges have a constant cross-sectional area and a sequential change in cross-sectional shape. When the fastener is placed within the cavity, the material defining the cavity flows into the grooves and is sequentially deformed by the change in cross-sectional shape of the grooves. Extraction of the fastener from the cavity requires reversal of the material flow and provides substantial resistance to such extraction.

REFERENCES:
patent: 1891895 (1932-12-01), Nagel
patent: 2223871 (1940-12-01), Johnson
patent: 2405402 (1946-08-01), Carter
patent: 2842180 (1958-07-01), Brown et al.
patent: 3454070 (1969-07-01), Phipard, Jr.
patent: 3489195 (1970-01-01), Mortus
patent: 3530920 (1970-09-01), Podell

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