Machine and method for making star shaped fasteners

Details Machine and method for making star shaped fasteners Machine and method for making star shaped fasteners

1987-10-19

1989-01-31

Combs, E. Michael

Metal deforming

Process

Involving use of claimed apparatus

10 43, 29 33F, 72373, B21D 3100, B21G 328, B21G 330

Patent

active

048007463

ABSTRACT:
A wire straightener, and multiple preform rollers prepare a continuous length wire for further forming with multiple form rollers having multiple spaced apart notches on an exterior surface edge of the rollers. The notches cause a section of the wire to be non-formed. After the formed wire is fed to a gripper housing where the wire is cut to a predetermined length, the non-formed section is punched to create the fastener head. The end section of the fastener opposite the head is tapered and the finished fastener is ejected from the machine.

REFERENCES:
patent: 2014746 (1935-09-01), Roberegel
patent: 2800668 (1957-07-01), Friedman
patent: 2821727 (1958-02-01), Corckran
patent: 3695310 (1972-10-01), Donadio
patent: 4368632 (1983-01-01), Thrash et al.
patent: 4637768 (1987-01-01), Rabe

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