Self-attaching female fastener, die set and method of...

Details Self-attaching female fastener, die set and method of... Self-attaching female fastener, die set and method of...

2006-12-26

2006-12-26

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S432200, C411S179000, C411S180000

Reexamination Certificate

active

07152297

ABSTRACT:
A self-attaching fastener for thick panels having a pilot and a groove in a flange portion including an inclined outer wall and a bottom wall having an inclined portion extending to the outer face of the pilot and a concave surface in the outer face of the pilot adjacent the bottom wall. A die set for various panel thicknesses each having a projecting lip including an end face and first and second inclined faces which deform the panel against the inclined bottom wall and beneath the concave surface of the pilot. And, a method of attaching the fastener to a metal panel, wherein the die lip deforms a panel against the inclined bottom wall portion adjacent the pilot portion, inwardly into the concave surface and outwardly beneath the groove outer wall.

REFERENCES:
patent: 3299500 (1967-01-01), Double
patent: 3711931 (1973-01-01), Ladouceur et al.
patent: 3810291 (1974-05-01), Ladouceur
patent: 3878599 (1975-04-01), Ladouceur et al.
patent: 4484385 (1984-11-01), Woods
patent: 4971499 (1990-11-01), Ladouceur
patent: 5549430 (1996-08-01), Takahashi et al.
patent: 6631827 (2003-10-01), Goodsmith et al.

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