Composite buckling blind fastener

Details Composite buckling blind fastener Composite buckling blind fastener

1981-04-13

1984-07-03

Callaghan, Thomas F.

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

Having separate expander means

Bulged by axially contracting ends

411 34, 29523, F16B 1910

Patent

active

044576528

ABSTRACT:
In a blind fastener comprising a nut with an axial bore therethrough, a bolt extending through said nut and a sleeve on said bolt, the improvement comprising said sleeve having a thin wall section adjacent to the nut formed by a recess in said section and a collar between said nut and sleeve which has a tensile strength very much less than the tensile strength of said sleeve and the sleeve is adapted upon setting of the fastener to have the thin wall section buckle outwardly upon the contact with the parts being fastened to form a large bearing surface.

REFERENCES:
patent: 4142439 (1979-03-01), Landt
patent: 4203346 (1980-05-01), Hall et al.
patent: 4237768 (1980-12-01), Volkmann
patent: 4312613 (1982-01-01), Binns

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