Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Spacer
Reexamination Certificate
2007-06-28
2011-11-22
Batson, Victor (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Spacer
C411S032000, C411S045000, C411S522000, C411S970000
Reexamination Certificate
active
08061948
ABSTRACT:
A device for fastening an add-on part (23) and a support part (24) at a distance from each other has a mounting nut (1) comprising an internal thread (9) of a first direction of thread, a compensating bush (5) comprising an external thread (8) that is adjusted to the internal thread (9), and a fastening screw (26), wherein its screw shaft (25) is configured having an external thread (27) of a second direction of thread opposite of the first direction of thread. The compensating bush (5) is configured having an internal sleeve (13) comprising a head section (15) having an arrangement of reinforcement zones (17) and adaptation zones (18), wherein the reinforcement zones (17) have a larger resistance than the adaptation zones (18) as opposed to an expansion directed radially outward. In this manner, relatively low tightening torques, as well as a relatively large variability in the material selection, are achieved even with relatively large tolerances between the diameters of the channel section of the compensating bush and the screw shaft.
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A. Raymond et Cie
Baker & Daniels LLP
Batson Victor
Delisle Roberta
LandOfFree
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