Michael J Mayer

US Patent:

7387563, Jun 17, 2008

Filed:

Jul 21, 2005

Appl. No.:

11/187139

Inventors:

Markus Allemann - Grayslake IL, US
Edward G. Ennis - Niles IL, US
Vera Maras - Schaumburg IL, US
Jose Nieto - Chicago IL, US
Bradley J. Albrecht - Cahokia IL, US
Simon C. Dirnberger - Tulsa OK, US
Alan S. Kremzar - Cedar Rapids IA, US
Michael C. Mayer - Smithshire IL, US
Alexandria L. Merritt - Hannibal MO, US
Amanda B. Raffurty - Lee's Summit MO, US

Assignee:

Robert Bosch GmbH - Stuttgart

International Classification:

B24B 23/02

US Classification:

451342, 451508

Abstract:

A mandrel and accessory and related combination for use with a rotary tool are disclosed. For instance, the mandrel and accessory combination includes a mandrel assembly and an accessory. The mandrel assembly includes (i) a shaft component defining an axis and having a first portion configured to be received in a chuck of a power tool, and a second portion having a first shaft tooth and a second shaft tooth each extending in a perpendicular manner with respect to the axis, and (ii) a collar component defining a passage through which the shaft component extends, the collar component having a first collar tooth and a second collar tooth. The accessory includes an outer wall structure defining a circular outer periphery; and an inner wall structure defining a coupling opening. The accessory is configured to be releasably coupled to the mandrel assembly.