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...
Reexamination Certificate
2006-02-21
2006-02-21
Hartmann, Gary S. (Department: 3671)
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...
C411S181000, C411S187000, C411S188000
Reexamination Certificate
active
07001125
ABSTRACT:
A self-attaching female fastener such as a pierce nut having an annular pilot, an annular flange surrounding the pilot and an annular groove in the flange bearing surface surrounding the pilot, wherein the bottom wall of the groove includes wedge-shaped recesses dividing the groove bottom wall into segments having parallel sides defined by the adjacent wedge-shaped recesses and the inclined outer wall of the pilot is deformed radially during installation to entrap and compact panel metal in the groove forming a sealed secure installation having improved push-off and anti-rotation strength.
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International Search Report mailed Jun. 20, 2003 for PCT/US03/08424.
Parker John M.
Wojciechowski Stanley E.
Hartmann Gary S.
Howard & Howard
Whitesell International Corporation
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