Patent ID: 7337695

Claim:
A casing comprising casing parts and fastening elements, wherein the casing parts are connected to one another by the fastening elements that are located inside and concealed within the casing and inaccessible from the exterior of the casing when the casing is flanged to a motor casing, wherein the fastening elements do not project to the exterior of the casing parts and the exterior of the casing has a continuous contour that is free of edges, corners, projections, recesses, and steps caused by the fastening elements or by recesses for receiving the fastening elements so that dirt particles and germs are prevented from depositing on the exterior of the casing; wherein a first one of the casing parts has through openings for receiving the fastening elements; wherein the first casing part has an end face provided with recesses, wherein the through openings open into the recesses.