Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Frangible member
Patent
1986-06-13
1987-07-07
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Frangible member
411 45, 411 69, F16B 1304
Patent
active
046783849
ABSTRACT:
The invention is a blind fastener of the type having a hollow sleeve, spindle, and locking collar. The fastener differs from conventional blind fasteners in that the spindle has a cold work mandrel portion between the pull stem and shear pin portions thereof. Furthermore, all the principle dimensions and tolerances thereof are based on the sleeve shank outer diameter. The more important dimensions are the sleeve inside diameter of between 0.9000 times the minimum sleeve outer diameter and 0.8964 times the maximum sleeve outer diameter, the shear pin diameter of the spindle is between 0.9632 times the minimum sleeve outer diameter and 0.9534 times the maximum sleeve outer diameter and the tapered cold work mandrel portion larger diameter is between 0.9684 times the minimum sleeve shank outer diameter and 0.9585 times the maximum sleeve outer diameter.
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Bakow Leon
Incardona Angelo
Kikendall Garth D.
Richardson David G.
Sparling Kenneth P.
Dachs Louis L.
Holko Thomas J.
Lockheed Corporation
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