Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1982-09-30
1985-04-02
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411437, F16B 3704
Patent
active
045084777
ABSTRACT:
Disclosed is an improved fastening device (70, 72, 74, 76, 78) for securement of a threaded member such as a screw ("s") to an article such as a panel or the like. The device is of the type having a base member (12) having a frusto-conical projection (14) having a lower and higher helical edge (16, 16a) surrounding an opening (40, 42') therethrough which in conjunction with a pair of resilient finger portions (30, 32') having respective free-ends (34, 36) spaced-apart from each other along an axis ("y--y") defined therebetween of which one finger portion is displaced a distance ("x") further from the base member than the other finger portion to provide a means of engaging the threads of the threaded member. Edges (16, 16a) are separated from each other by means of a slot (38) which, by extending beneath the finger portion having the higher free-end in a direction substantially transverse to axis "y--y", is able to prevent cocking and cross-threading of the threads of the threaded member which has been a problem in the past particularly when the threaded member has a blunt rather than a pointed end.
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Crammond James
MacRae Ralph A.
Oehlke Donald N.
Rattmann Hans R.
Chrow A. E.
Eaton Corporation
Grace C. H.
Holko Thomas J.
Whitcomb, Jr. Adrian H.
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