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:
Apr. 08, 2008
Filed:
Jun. 29, 2006
Reinhard Riedl, Finning, DE;
Markus Hartmann, Mauerstetten, DE;
Reinhard Riedl, Finning, DE;
Markus Hartmann, Mauerstetten, DE;
Hilti Atktiengesellschaft, Schaan, LI;
Abstract
An electrical hand-held power tool () includes an electric motor () with a stator (), and a device () for reversing the rotational direction of the motor () and which has a contact carrier () fixedly securable on the stator housing with a releasable connection element and having field contacts () electrically connectable with the stator winding (), and fixed contacts () electrically connected with the field contacts (), with the reversing device () also including a brush carrier () provided with carbon guides () and switching contacts () electrically connected with the carbon guides () and electrically connectable with the fixed contacts () of the contact carrier (), the brush carrier () being rotatable relative to the contact carrier (), and the stator housing () having an axial stop for the brush carrier ().