Patents by Inventor Andreas Grünwald
Andreas Grünwald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9193045Abstract: A tool attachment for mounting on a hand-held machine tool provided with a tool holder, the tool attachment having an output shaft and a base body at whose outer circumference a locking sleeve is disposed in a manner allowing it to rotate to release at least one assigned locking element; at the outer circumference of the base body, an anti-rotation unit is formed for the twist-proof mounting of the base body on a fastening unit assigned to the hand-held machine tool; on the anti-rotation unit and at an inner circumference of the fastening unit, complementary geometrical forms are provided which are configured to mesh with each other for the releasable, twist-proof mounting of the base body on the fastening unit.Type: GrantFiled: October 4, 2012Date of Patent: November 24, 2015Assignee: ROBERT BOSCH GMBHInventors: Dietmar Saur, Michael-Andreas Grunwald
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Patent number: 9149872Abstract: In a tool attachment, for fastening to an handheld machine tool equipped with a tool holding fixture, having an output shaft and a base body, which forms an inner cavity and on whose outer circumference an axially displaceable locking sleeve is situated, for releasing at least one associated locking element against a spring force of a spring element, which has a clamping ring, in the inner cavity, a anti-rotation locking unit is configured for the rotationally locked fastening of the base body to a fastening unit associated with the handheld machine tool, the anti-rotation locking unit and the fastening unit having complementary geometric forms, which are configured to engage with each other for the detachable rotationally locked fastening of the base body on the fastening unit; and the at least one associated locking element being situated in the vicinity of the anti-rotation locking unit.Type: GrantFiled: September 11, 2012Date of Patent: October 6, 2015Assignee: ROBERT BOSCH GMBHInventors: Dietmar Saur, Michael-Andreas Grunwald
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Patent number: 9097331Abstract: In a hand-held power tool having a planetary gearbox which is situated in a housing interior formed by a gear housing, at least one cross pin is fastened in the housing interior for axial support of the planetary gearbox in the gear housing.Type: GrantFiled: December 7, 2010Date of Patent: August 4, 2015Assignee: ROBERT BOSCH GMBHInventors: Dietmar Saur, Joerg Welke, Michael-Andreas Grunwald
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Patent number: 8978780Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.Type: GrantFiled: December 20, 2013Date of Patent: March 17, 2015Assignee: Robert Bosch GmbHInventors: Michael-Andreas Grunwald, Marco Pawlowski, Joerg Welke, Dietmar Saur
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Publication number: 20140174776Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicant: ROBERT BOSCH GMBHInventors: Michael-Andreas GRUNWALD, Marco PAWLOWSKI, Joerg WELKE, Dietmar SAUR
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Patent number: 8636080Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.Type: GrantFiled: October 1, 2010Date of Patent: January 28, 2014Assignee: Robert Bosch GmbHInventors: Michael-Andreas Grunwald, Marco Pawlowski, Joerg Welke, Dietmar Saur
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Publication number: 20130093142Abstract: In a tool attachment, for fastening to an handheld machine tool equipped with a tool holding fixture, having an output shaft and a base body, which forms an inner cavity and on whose outer circumference an axially displaceable locking sleeve is situated, for releasing at least one associated locking element against a spring force of a spring element, which has a clamping ring, in the inner cavity, a anti-rotation locking unit is configured for the rotationally locked fastening of the base body to a fastening unit associated with the handheld machine tool, the anti-rotation locking unit and the fastening unit having complementary geometric forms, which are configured to engage with each other for the detachable rotationally locked fastening of the base body on the fastening unit; and the at least one associated locking element being situated in the vicinity of the anti-rotation locking unit.Type: ApplicationFiled: September 11, 2012Publication date: April 18, 2013Inventors: Dietmar SAUR, Michael-Andreas GRUNWALD
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Publication number: 20130065727Abstract: In a hand-held power tool having a planetary gearbox which is situated in a housing interior formed by a gear housing, at least one cross pin is fastened in the housing interior for axial support of the planetary gearbox in the gear housing.Type: ApplicationFiled: December 7, 2010Publication date: March 14, 2013Applicant: ROBERT BOSCH GMBHInventors: Dietmar Saur, Joerg Welke, Michael-Andreas Grunwald
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Publication number: 20110079408Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.Type: ApplicationFiled: October 1, 2010Publication date: April 7, 2011Inventors: Michael-Andreas GRUNWALD, Marco Pawlowski, Joerg Welke, Dietmar Saur
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Patent number: D653626Type: GrantFiled: May 20, 2010Date of Patent: February 7, 2012Assignee: Siemens AktiengesellschaftInventors: Andreas Grünwald, Alexandra Heisig, Eric Lude, Thomas Menke, Eberhard Ohlert, Axel Platz, Volker Rissland, Thomas Schüppler
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Patent number: D660799Type: GrantFiled: May 20, 2010Date of Patent: May 29, 2012Assignee: Siemens AktiengesellschaftInventors: Andreas Grünwald, Alexandra Heisig, Eric Lude, Thomas Menke, Eberhard Ohlert, Axel Platz, Volker Rissland, Thomas Schüppler
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Patent number: D661252Type: GrantFiled: May 20, 2010Date of Patent: June 5, 2012Assignee: Siemens AktiengesellschaftInventors: Andreas Grünwald, Alexandra Heisig, Eric Lude, Thomas Menke, Eberhard Ohlert, Axel Platz, Volker Rissland, Thomas Schüppler
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Patent number: D661253Type: GrantFiled: May 20, 2010Date of Patent: June 5, 2012Assignee: Siemens AktiengesellschaftInventors: Andreas Grünwald, Alexandra Heisig, Eric Lude, Thomas Menke, Eberhard Ohlert, Axel Platz, Volker Rissland, Thomas Schüppler
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Patent number: D661254Type: GrantFiled: May 20, 2010Date of Patent: June 5, 2012Assignee: Siemens AktiengesellschaftInventors: Andreas Grünwald, Alexandra Heisig, Eric Lude, Thomas Menke, Eberhard Ohlert, Axel Platz, Volker Rissland, Thomas Schüppler
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Patent number: D666150Type: GrantFiled: May 20, 2010Date of Patent: August 28, 2012Assignee: Siemens AktiengesellschaftInventors: Andreas Grünwald, Alexandra Heisig, Eric Lude, Thomas Menke, Eberhard Ohlert, Axel Platz, Volker Rissland, Thomas Schüppler