Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Deformable securing means
Patent
1989-09-26
1991-01-08
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Deformable securing means
411336, 411399, F16B 1900
Patent
active
049830856
ABSTRACT:
A fastening assembly includes a bolt and a malleable fastener. The bolt has a head at one end and either threads or circumferentially extending grooves adjacent the other end. The bolt further includes a plurality of axially extending grooves located on the bolt between the bolt head and the threads or circumferentially extending grooves. The malleable fastener is capable of being swaged from an initial state to a swaged state. In the initial state the fastener is essentially shaped as a hollow collar having an outside surface and an interior surface with the collar sized and shaped to freely slide over the bolt. In the swaged state the interior surface of the collar intimately contacts and irreversibly locks against both axial and rotational movement with respect to the bolt by assuming a complementary shape to the bolt about both the axial grooves and the threads or the circumferentially extending grooves.
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Anderson Terry J.
Block Robert B.
Dino Suzanne L.
Northrop Corporation
Smith Gary L.
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