Composite fastener

Details Composite fastener Composite fastener

1990-05-23

1992-03-24

Wilson, Neill R.

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

Externally threaded fastener element, e.g., bolt, screw, etc.

Thread or shank structure

411 14, 411900, 411908, F16B 3504

Patent

active

050982400

ABSTRACT:
A composite fastener which provides up to 70 KSI in shear strength in a 1/4 inch shank diameter and includes several layers having long parallel carbon fibers embedded in resin. The layers are pressed together and heated to form a panel. The panel is cut into bars which are then machined into rods, used to form threaded or unthreaded composite shear pins. The fibers in adjacent layers are angled with respect to one another to provide maximum shear strength in a particular direction. The head of the shear pin is preferably marked to indicate the orientation of maximum shear strength.

REFERENCES:
patent: 2901455 (1959-08-01), Jurras
patent: 2943967 (1960-07-01), Simon
patent: 2949054 (1960-08-01), White
patent: 3495494 (1970-02-01), Scott
patent: 3995092 (1976-11-01), Fuchs
patent: 4576847 (1986-03-01), Tajima
patent: 4623290 (1986-11-01), Kikuzawa et al.
patent: 4717302 (1988-01-01), Adams et al.
patent: 4909690 (1990-03-01), Gapp et al.

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