F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/132
F16B 37/02 (2006.01) F16B 37/04 (2006.01)
Patent
CA 1220371
ABSTRACT OF THE DISCLOSURE 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) 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.
434366
Crammond James
Macrae Ralph A.
Oehlke Donald N.
Rattmann Hans R.
Macrae & Co.
Transtechnology Canada Corporation
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