Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Including lubricating means
Patent
1989-12-18
1991-01-22
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Including lubricating means
411432, 411533, F16B 3700, F16B 4300
Patent
active
049867121
ABSTRACT:
A flanged nut is received by a cup washer which is slightly larger than the flanged nut to allow rotation of the nut relative to the washer. The cup washer is deformed (staked) to capture the nut about its flanged periphery. The nut is designed to rotate relative to the washer during assembly to assure two known, constant bearing surfaces regardless of the nature of the panel surface beneath the washer. The flanged nut has a large nut-to-washer bearing area capable of optimizing stress distribution at high loads.
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Emhart Industries Inc.
Smith Spencer T.
Wilson Neill R.
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