The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2008
Filed:
Oct. 13, 2004
Helmut Burger, Moorenweis, DE;
Hansjoerg Schwarz, Kaufering, DE;
Peter Schmiddunser, Weil, DE;
Ernst-rudolf Luebkert, Landsberg, DE;
Helmut Burger, Moorenweis, DE;
Hansjoerg Schwarz, Kaufering, DE;
Peter Schmiddunser, Weil, DE;
Ernst-Rudolf Luebkert, Landsberg, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An electric motor includes a stator () secured in the motor housing (), a rotatable rotor (), a fan impeller () arranged on the rotor (), and an annular air duct () arranged between the fan impeller () and the rotor () and having a shroud () spaced from the impeller () by a slot having an axial width (X), a dimensionally stable, with respect to the shroud (), housing stop (), an axially, resiliently displaceable fixing element () forming a stator stop () facing in a same direction as the housing stop (), and a locking element.