Detachable fastener including a screw element and a securing...

Details Detachable fastener including a screw element and a securing... Detachable fastener including a screw element and a securing...

2005-08-30

2005-08-30

Miller, William L. (Department: 3677)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Threaded fastener locked to a discreet structure

Member or portion thereof located between substructure and...

C411S149000

Reexamination Certificate

active

06935822

ABSTRACT:
A detachable fastener includes a screw element and a securing ring. The screw element and the securing ring each include cooperating wedge-shaped surface tooth arrangements and two different pairs of stop surfaces. The wedge-shaped surface tooth arrangements face one another and form sliding surfaces sliding upon one another in a loosening direction of rotation resulting in an increase of the axial force. The first pair of stop surfaces transmits torque in a tightening direction of rotation. The second pair of stop surfaces transmits torque in a loosening direction of rotation. The stop surfaces are arranged with a clearance existing between one another such that the wedge-shaped surface tooth arrangements can slide upon one another without skipping.

REFERENCES:
patent: 1622581 (1927-03-01), Gunkel
patent: 1923647 (1933-08-01), Vera
patent: 2641293 (1953-06-01), Earle
patent: 3263727 (1966-08-01), Herpolsheimer
patent: 3438416 (1969-04-01), Thurston
patent: 5474409 (1995-12-01), Terry
patent: 5967724 (1999-10-01), Terry
patent: 6517301 (2003-02-01), Hartmann et al.
patent: 10034748 (2002-02-01), None
patent: WO 92/14939 (1992-09-01), None

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