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:
Dec. 22, 2015
Filed:
Jun. 24, 2013
Robert Bosch Gmbh, Stuttgart, DE;
Cornelius Boeck, Kirchheim, DE;
Joachim Schadow, Stuttgart, DE;
Tobias Overbeck, Moehringen, DE;
Rainer Vollmer, Neuhausen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A guard device includes a fastening element defining a central opening and configured to be fastened onto a collar of a power tool, a guard portion extending from the fastening element and configured to surround at least a portion of a tool holder extending from the collar, a braking element pivotably supported on the fastening element and including a frictional engagement surface that is configured to be pivoted against the collar so as to apply a frictional braking force against the collar when the power tool is in an operating state, and an actuating element moveably supported on the fastening element and configured to pivot the braking element such that the frictional engagement surface is positioned in contact with the collar. The frictional engagement surface is configured to increase the braking force applied to the collar in response to a braking state of the power tool.