Patents by Inventor Holger Froehling
Holger Froehling 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: 12103126Abstract: A suction adapter, in particular a suction drill suction adapter, for connecting an insertion tool, in particular a suction drill, to a suction apparatus includes at least one insertion tool receiving region, in which the insertion tool is arranged, at least one connection interface with respect to an insertion tool suction channel of the insertion tool, and at least one, in particular dimensionally stable, discharge guiding unit configured to delimit a suction channel. The at least one discharge guiding unit has at least one discharge guiding element configured to delimit a suction channel outlet of the suction channel and which has a longitudinal axis. The longitudinal axis of the at least one discharge guiding element is orientated parallel with a main extent axis of the at least one insertion tool receiving region in a region of the suction channel outlet in at least one operating state.Type: GrantFiled: June 25, 2021Date of Patent: October 1, 2024Assignee: Robert Bosch GmbHInventors: Andreas Schurig, Edit Okenwa, Fritz Schlegel, Hardy Schmid, Holger Froehling, Michael Briesenick, Stefan Sonntag, Tamara Gaschler
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Publication number: 20240278371Abstract: An accessory, in particular a suction device, for fixing to a hand-held power tool, on which a battery pack can be arranged for supplying power to a drive motor, includes a battery protection element designed to enclose the battery pack arranged on the hand-held power tool at least in sections and to protect the battery pack in the event of impact pulses occurring.Type: ApplicationFiled: February 12, 2024Publication date: August 22, 2024Inventors: Andre Ullrich, Holger Froehling
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Publication number: 20240075572Abstract: A suction device for a releasable connection to a hand-held power tool, in particular to a hammer drill, includes a housing with a drive unit arranged in the housing for generating a suction flow, and at least one locking unit for a mechanical coupling with the hand-held power tool. The coupling includes at least one locking element for direct locking with the hand-held power tool and at least one actuating element used to release the lock of the at least one locking element. The actuating element and/or the locking element are arranged at least partially adjacent the drive unit.Type: ApplicationFiled: August 16, 2023Publication date: March 7, 2024Inventors: Fritz Schlegel, Holger Froehling
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Publication number: 20220105618Abstract: A bearing flange for a drive system of a hand-held power tool includes a first bearing point for a driveshaft of a drive motor, a second bearing point for an intermediate shaft, and a third bearing point for a hammer tube. At least one bearing point includes a ball bearing, which is received in a receiving opening of the bearing flange and is axially secured therein by a snap ring.Type: ApplicationFiled: September 24, 2021Publication date: April 7, 2022Inventors: Fritz Schlegel, Holger Froehling
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Publication number: 20220001503Abstract: A suction adapter, in particular a suction drill suction adapter, for connecting an insertion tool, in particular a suction drill, to a suction apparatus includes at least one insertion tool receiving region, in which the insertion tool is arranged, at least one connection interface with respect to an insertion tool suction channel of the insertion tool, and at least one, in particular dimensionally stable, discharge guiding unit configured to delimit a suction channel. The at least one discharge guiding unit has at least one discharge guiding element configured to delimit a suction channel outlet of the suction channel and which has a longitudinal axis. The longitudinal axis of the at least one discharge guiding element is orientated parallel with a main extent axis of the at least one insertion tool receiving region in a region of the suction channel outlet in at least one operating state.Type: ApplicationFiled: June 25, 2021Publication date: January 6, 2022Inventors: Andreas Schurig, Edit Okenwa, Fritz Schlegel, Hardy Schmid, Holger Froehling, Michael Briesenick, Stefan Sonntag, Tamara Gaschler
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Patent number: 11123830Abstract: An accessory device for a hand-held power tool includes a dust collection box that has a housing and a filter unit configured to filter an airflow. The housing is configured to be connected to a housing of the accessory device via a first securing unit. The filter unit is configured to be connected to the housing of the dust collection box via a second securing unit. The filter unit has a first sealing element arranged on the dust collection box side and a second sealing element arranged on the accessory device side. The filter unit is sealed from the housing of the dust collection box and the housing of the accessory device via the first and second sealing elements. The hand-held power tool in one embodiment is configured with a percussive mechanism.Type: GrantFiled: November 20, 2017Date of Patent: September 21, 2021Assignee: Robert Bosch GmbHInventors: Andre Ullrich, Benjamin Nikolas Fischle, Juergen Dietel, Holger Froehling, Erwin Orendi
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Publication number: 20190358758Abstract: An accessory device for a hand-held power tool includes a dust collection box that has a housing and a filter unit configured to filter an airflow. The housing is configured to be connected to a housing of the accessory device via a first securing unit. The filter unit is configured to be connected to the housing of the dust collection box via a second securing unit. The filter unit has a first sealing element arranged on the dust collection box side and a second sealing element arranged on the accessory device side. The filter unit is sealed from the housing of the dust collection box and the housing of the accessory device via the first and second sealing elements. The hand-held power tool in one embodiment is configured with a percussive mechanism.Type: ApplicationFiled: November 20, 2017Publication date: November 28, 2019Inventors: Andre Ullrich, Benjamin Nikolas Fischle, Juergen Dietel, Holger Froehling, Erwin Orendi
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Patent number: 9844869Abstract: A hand tool machine device with a drive unit comprising at least one drive shaft, a transmission unit including at least one transmission element, a cooling unit including at least one fan element, and at least one sealing element configured to seal the transmission unit in at least on axial direction. The at least one fan element includes at least one receiving region configured to at least partially receive the at least one sealing element.Type: GrantFiled: January 3, 2013Date of Patent: December 19, 2017Assignee: Robert Bosch GmbHInventors: Andre Ullrich, Holger Froehling
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Patent number: 9427850Abstract: A drywall screwdriver includes a housing, an element delimiting the depth of engagement, a drive unit, an outlet spindle, and a planetary gear that comprises at least one hollow wheel. The drywall screwdriver further comprises at least one support element that is different from a housing element and that at least partially surrounds the ring gear of the planetary gear.Type: GrantFiled: June 1, 2012Date of Patent: August 30, 2016Assignee: Robert Bosch GmbHInventors: Andre Ullrich, Holger Froehling
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Publication number: 20150209945Abstract: A drywall screwdriver includes a housing, a screw-in depth limitation element, a gear unit, an output spindle, a drive unit, and a coupling unit. The coupling unit is configured to couple and/or decouple a torque transmission of the gear unit to the output spindle. A gear element of the gear unit is permanently connected to at least one coupling element of the coupling unit.Type: ApplicationFiled: June 4, 2012Publication date: July 30, 2015Applicant: Robert Bosch GmbHInventors: Andre Ullrich, Holger Froehling
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Publication number: 20150003900Abstract: A hand tool machine device with a drive unit comprising at least one drive shaft, a transmission unit including at least one transmission element, a cooling unit including at least one fan element, and at least one sealing element configured to seal the transmission unit in at least on axial direction. The at least one fan element includes at least one receiving region configured to at least partially receive the at least one sealing element.Type: ApplicationFiled: January 3, 2013Publication date: January 1, 2015Inventors: Andre Ullrich, Holger Froehling
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Publication number: 20140318822Abstract: A portable power tool includes at least one tool receptacle (60) which has at least one rotation axis, and includes at least one housing which has at least one handle region. The handle region comprises at least one gripping plane extending at least substantially parallel to the rotation axis of the tool receptacle. The gripping plane extends through a point on the housing that is located on a side of the housing that is remote from the tool receptacle. The point is a point on the housing that is closest to the tool receptacle on that side of the housing that is remote from the tool receptacle. The gripping plane is at a minimum distance of greater than 4 mm from the rotation axis.Type: ApplicationFiled: April 17, 2014Publication date: October 30, 2014Applicant: Robert Bosch GmbHInventors: Andre Ullrich, Holger Froehling
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Publication number: 20140230609Abstract: A drywall screwdriver includes a housing, an element delimiting the depth of engagement, a drive unit, an outlet spindle, and a planetary gear that comprises at least one hollow wheel. The drywall screwdriver further comprises at least one support element that is different from a housing element and that at least partially surrounds the ring gear of the planetary gear.Type: ApplicationFiled: June 1, 2012Publication date: August 21, 2014Applicant: Robert Bosch GmbHInventors: Andre Ullrich, Holger Froehling