Continuous curve countersink and rivet head structure for rivete

Details Continuous curve countersink and rivet head structure for rivete Continuous curve countersink and rivet head structure for rivete

1980-03-10

1981-09-01

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29522A, B21D 3900, B23P 1100

Patent

active

042863716

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: 2991858 (1961-07-01), Taylor et al.
patent: 3384395 (1968-05-01), Brandestini
patent: 3526032 (1970-09-01), Pipher
patent: 3748948 (1973-07-01), Schmitt
patent: 3874070 (1975-04-01), Falcioni
patent: 3936205 (1976-02-01), Speakman
patent: 4000680 (1977-01-01), Briles
patent: 4048708 (1977-09-01), Briles
patent: 4050833 (1977-09-01), Briles
patent: 4051592 (1977-10-01), Briles

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