Patents by Inventor Florian Esenwein

Florian Esenwein 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).

  • Publication number: 20120187782
    Abstract: A hand-held power tool with a drive motor and a gear mechanism has elastomer elements moulded onto the inner side of the housing. At least two elastomer elements form elastomer bearings for bearing the drive motor.
    Type: Application
    Filed: July 19, 2010
    Publication date: July 26, 2012
    Applicant: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Publication number: 20120138325
    Abstract: A tool machine has a housing assembled by two separate housing parts and an air directing element arranged in the housing, wherein the air directing element is implemented independently from a connection device for connecting the housing parts. The air directing element is forced by a housing part axially in a seat in the other housing part, wherein in the transmission path between the housing parts and the air directing element a spring element is arranged.
    Type: Application
    Filed: April 16, 2010
    Publication date: June 7, 2012
    Applicant: Robert Bosch GmbH
    Inventors: Florian Esenwein, Manfred Lutz, Thomas Schomisch
  • Patent number: 8113922
    Abstract: The invention relates to a machine tool, particularly a hand machine tool, which comprises a driving motor and an air guide element, which is disposed in the housing of the machine tool and conducts an air current passing over the driving motor to the outside. The air guide element comprises a functional section, which forms a part of the outer lateral surface of the machine tool.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: February 14, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Patent number: 8084900
    Abstract: A stater of an electrical machine has a cross section, a longitudinal extension, a jacket surface, a plurality of winding holders configured so that at least one of the winding holders for receiving a field winding has a larger winding width than another of the winding holders.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: December 27, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Ludwig Schoen, Florian Esenwein
  • Patent number: 8042966
    Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: October 25, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Lutz, Sim Teik Yeoh, Florian Esenwein
  • Publication number: 20110204787
    Abstract: A machine tool with a generator for generating electrical power is disclosed. The generator has a stator with a coil and a rotor with a magnet. The rotor is capable of moving relative to the stator. An air gap is formed between the rotor and the stator. The stator and the rotor comprise a material with a relative permeability greater than the relative permeability of air and are arranged in such a way that magnetic lines of force of the magnet are guided in a targeted manner with respect to the coil. The air gap between the stator and the rotor is configured in such a way that a large proportion of the lines of force emanating from the magnet are guided by the stator and the rotor.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 25, 2011
    Applicant: Robert Bosch GmbH
    Inventors: Ludwig Schoen, Florian Esenwein
  • Publication number: 20110204786
    Abstract: A machine tool with a generator for generating electrical power is disclosed. The generator has a rotor and a stator. A coil and a magnet are arranged on the stator. The rotor is capable of moving relative to the stator and has a first region and a second region. The rotor is configured in such a way that, during a movement of the rotor relative to the stator, a magnetic flux in the coil is changed due to differences between the first and second regions in terms of their magnetic permeability and/or in terms of their geometric configuration, and an electrical voltage is induced.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 25, 2011
    Applicant: Robert Bosch GmbH
    Inventors: Ludwig Schoen, Florian Esenwein
  • Publication number: 20110175466
    Abstract: A hand power tool with an oblong motor housing, particularly used as a handle, houses an electric collector motor. The brushes of the motor are housed in a brush holder with a brush shaft in a spring loaded way. Furthermore, the brush holder is solely/individually fixed in the motor housing, to which an axis intersection is associated, particularly a longitudinal, a vertical, and a transversal axis. According to the invention, the hand power tool is arranged in the motor housing in a space-saving manner with the shaft of the brush holder arranged opposite the vertical axis of the motor housing at an angle of approximately 20° in a laterally displaced way, particularly radially, relative to the longitudinal axis.
    Type: Application
    Filed: July 7, 2009
    Publication date: July 21, 2011
    Inventors: Florian Esenwein, Manfred Lutz, Thomas Schomisch
  • Publication number: 20110148227
    Abstract: The invention relates to a power tool having a machine housing and a ventilation unit which is provided for cooling a motor unit and/or an electronics unit encased by the machine housing, the cooling being accomplished by means of suctioning a cooling air flow, and which has a deflection unit. The invention provides that the deflection unit has at least one deflection channel that is provided for separating contaminant particles and air of the cooling air flow by means of a deflecting of the cooling air flow.
    Type: Application
    Filed: June 29, 2009
    Publication date: June 23, 2011
    Inventors: Manfred Schuele, Bernd Altvater, Florian Esenwein
  • Patent number: 7960891
    Abstract: A power tool has an electric motor that includes a commutator, with which at least one commutator brush is acted upon with spring force via at least one commutator spring in the direction of a non-rotatable collector of the commutator. At least one auxiliary tool for adjusting the commutator spring is located on a component of the power tool.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: June 14, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Patent number: 7927191
    Abstract: The invention relates to a portable power tool (44) for a rotating, preferably disk-shaped tool. Said portable power tool comprises a machine housing (43), having a machine neck (22) to which a protective hood (1) can be detachably secured to at least partially cover the tool. Said protective hood (1) comprises a protective hood neck (2) and a clamp (29) is provided for the detachable securing. In order to provide an anti-rotation lock (48) which is effective between the machine neck (22) and the protective hood (1), a respective profiled structure (15) is arranged/configured on the clamp (29) and on the protective hood neck (7) or on the protective hood neck (7) and on the machine neck (22) or on the protective neck (7) and on the clamp (29) and on the machine neck (22).
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: April 19, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Publication number: 20110086583
    Abstract: The invention relates to a power tool, comprising a protective guard, and a clamping band to be positioned about a clamping collar for attaching a protective guard to the clamping collar of the power tool. The clamping band is tensioned by a fastening device associated with the protective guard by way of a screw. A section of the clamping band is designed as a pivoting section, which is held at an adjoining section of the clamping band in an articulating manner.
    Type: Application
    Filed: April 22, 2009
    Publication date: April 14, 2011
    Inventors: Joerg Maute, Florian Esenwein
  • Patent number: 7911090
    Abstract: A stator of an electrical machine has a cross section, a longitudinal extension, a jacket surface, a plurality of winding holders configured for receiving field windings, the winding holders being distributed inhomogenously around an inner circumference of the cross section, such that a density of the field windings in at least one first region formed around a stator circumference is smaller than in an adjacent second region.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: March 22, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Ludwig Schoen, Florian Esenwein
  • Patent number: 7892075
    Abstract: A hand-held power tool for a rotating tool has a machine housing with a machine neck, a guard for at least partially covering the tool and detachably attached to the machine neck and including a guard neck, a clamping cuff for detachably attaching the guard to the machine neck, and an engagement structure including an engagement element provided on the clamping cuff and at least one recess for engagement of the engagement element provided on the guard neck, or on the guard neck and the machine neck, to form a rotational lock that acts between the machine neck and guard, and the clamping cuff is a separate component attached to the machine housing.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: February 22, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Patent number: 7888838
    Abstract: In an electrical device, in particular a power tool, equipped with a commutator motor, and in an accessory for an electrical device of this kind, a carbon brush shape adapting device is an integral component of the electrical device or of the accessory.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: February 15, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Publication number: 20110012446
    Abstract: In an electric machine tool with a commutator motor which has a motor shaft which is arranged rotatably in a motor housing and has a commutator, at least two commutator brushes are assigned which are accessible via at least one brush cover provided on the motor housing. A covering element fixes the brush cover on the motor housing in an operating position in which the commutator brushes are covered. The covering element in turn is fastened on the motor housing via a detachable connection.
    Type: Application
    Filed: December 18, 2008
    Publication date: January 20, 2011
    Inventors: Joerg Maute, Florian Esenwein, Albrecht Hofmann, Thomas Schomisch
  • Publication number: 20100328929
    Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.
    Type: Application
    Filed: September 9, 2010
    Publication date: December 30, 2010
    Inventors: Manfred Lutz, Sim Teik Yeoh, Florian Esenwein
  • Publication number: 20100270877
    Abstract: The invention relates to an electric machine tool, particularly an angle grinder, having an electric motor that can be forcibly cooled by a cooling air flow. The electric motor includes an armature and a field iron package disposed concentrically to the armature which are disposed in a cooling air flow. The invention proposes that the armature and the field iron package be disposed in series in the cooling air flow.
    Type: Application
    Filed: October 10, 2008
    Publication date: October 28, 2010
    Inventors: Florian Esenwein, Peter Wassermann
  • Patent number: 7815356
    Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: October 19, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Lutz, Sim Teik Yeoh, Florian Esenwein
  • Publication number: 20100258327
    Abstract: The invention relates to an electrically driven hand-held power tool having a drive motor that is configured as a commutator motor having a brush for current transfer to the commutator. A removable cover is received in the housing that is the carrier of a spring element, which exerts a spring force in the mounted state on the brush in the direction of the commutator.
    Type: Application
    Filed: September 29, 2008
    Publication date: October 14, 2010
    Inventors: Florian Esenwein, Albrecht Hofmann