Device for fastening an add-on part and a support part at a...

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Spacer

Reexamination Certificate

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Details

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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patent: 7226263 (2007-06-01), Schwarzbich
patent: 2006/0280579 (2006-12-01), Seidl et al.
patent: 202005009017 (2005-08-01), None
patent: 102004061087 (2006-07-01), None
patent: WO2006/063634 (2006-06-01), None

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