Bulb rivet

Details Bulb rivet Bulb rivet

1981-03-12

1984-05-29

Smith, Gary L.

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

Having separate expander means

Bulged by axially contracting ends

411 43, 411 70, 29522A, F16B 1304

Patent

active

044511892

ABSTRACT:
A blind fastener, producing a large blind side bulb, and including a locking ring to hold the fastener in a secured position against stresses. A collapsible barrel segment is disposed on the blind side between the end of the body portion and the head of the pull stem to effect the expansion of the body portion on the blind side. The barrel resists collapsing under loads sufficient to expand and flare the body portion of the fastener to produce the desired large bulb but collapses upon satisfactory flaring having been accomplished. The collapsible barrel, being collapsible along an angle, makes the fastener particularly well-adapted for fastening non-parallel surfaces.

REFERENCES:
patent: Re20055 (1936-08-01), Huck
patent: 2030167 (1936-02-01), Miller
patent: 2526235 (1950-10-01), Huck
patent: 2536353 (1951-01-01), Cooper
patent: 2763314 (1956-09-01), Gill
patent: 3107572 (1963-10-01), Orloff
patent: 3148578 (1964-09-01), Gapp
patent: 3426375 (1969-02-01), Jeal
patent: 4312613 (1982-01-01), Binns
patent: 4376604 (1983-03-01), Pratt et al.

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