Continuously curved countersink used with deformable rivet

Details Continuously curved countersink used with deformable rivet Continuously curved countersink used with deformable rivet

1977-12-30

1981-01-20

Kee Chi, James

Joints and connections

Having a joining piece extending through aligned openings in...

403388, 411504, F16B 1906, B25G 300, F16D 100, F16G 1100

Patent

active

042459214

ABSTRACT:
A fastening system having a continuously curved countersink section in an aperture through a plurality of workpieces, with a corresponding rivet having a continuously curved head portion substantially congruent to the continuously curved countersink. Rivets equipped with the continuously curved head surfaces taught herein, when mated with a continuously curved countersink, provide sufficient resistance to fastener pull through, cause cold working of the rivet upon insertion of the rivet into the aperture and impose an elastic load upon the workpiece and rivet, strengthening the joint.

REFERENCES:
patent: 2957237 (1960-10-01), Regle et al.
patent: 3526032 (1970-09-01), Pipher
patent: 3747467 (1973-07-01), Rosman
patent: 3936205 (1976-02-01), Speakman
patent: 4111580 (1978-09-01), Falcioni

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