Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Metallic resilient securing means
Reexamination Certificate
2007-12-11
2007-12-11
Mitchell, Katherine (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Metallic resilient securing means
C411S399000, C411S160000, C411S187000, C411S957000
Reexamination Certificate
active
10950837
ABSTRACT:
A fastener is retained within an opening of a workpiece by deforming a portion of an edge of the opening inwardly to prevent removal of the fastener. A deforming member associated with a head of the fastener includes a body having a clamping surface extending radially form a central axis. A wedge-like deforming element has a deforming member and having a deforming face angled axially and radially outward from the clamping surface. The deforming element, when pressed against a malleable edge of the workpiece, deforms at least a portion of the edge into the fastener opening thereby creating a stop which reduces the diameter of the opening and mechanically retains the fastener therein. The deforming member may be formed as a separate washer assembled on the fastener or may be made integral with the fastener head.
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General Motors Corporation
Mitchell Katherine
LandOfFree
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