Patents by Inventor Detlef Lauk
Detlef Lauk 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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Publication number: 20080209660Abstract: The invention relates to a window wiping device, in particular for a motor vehicle, with a crank (12) mounted on an output shaft (11). In the previously known window wiping devices, the crank is screwed to the output shaft, with a certain amount of construction space being required for the screw connection. In the window wiping device according to the invention, the output shaft (11) therefore has a region (13) which protrudes over the crank (12) and can be placed onto the crank (12), thus reducing the amount of construction space required.Type: ApplicationFiled: July 19, 2006Publication date: September 4, 2008Applicant: ROBERT BOSCH GMBHInventors: Detlef Lauk, Achim Hawighorst
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Publication number: 20070158396Abstract: The invention starts with a crankshaft arrangement, especially for a windshield wiper system, in which a shaft (10) is connected to a crank (12) so as to drive it. It is proposed that the crank (12) be connected to the shaft (10) via a structural part (16). In addition, a structural part (16) for a crankshaft arrangement is proposed.Type: ApplicationFiled: January 28, 2005Publication date: July 12, 2007Inventors: Detlef Lauk, Achim Hawighorst
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Patent number: 6974351Abstract: In an electric motor-and-gear assembly for driving automotive power accessories such as front and rear wipers, power window units, or the like, having transmission casing, that can be closed by means of a casing cover, and having a socket that is disposed in the casing cover and can be contacted by means of a connector plug in order to connect the electric motor to the electrical system of the vehicle, for the sake of a uniform, single design of the socket when there are structurally varied designs of connector plugs, the socket is attached to an interchangeable adapter which has a first group of electrical contacts adapted to the socket and a second group of electrical contacts adapted to the connector plug. The contacts of the two contact groups, which are comprised of plug tabs, are connected to one another in an electrically conductive manner inside or along a surface of the adapter.Type: GrantFiled: May 17, 2000Date of Patent: December 13, 2005Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Erik Maurer, Andreas Wiegert, Bernd Bock, Richard Hurst
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Patent number: 6940194Abstract: The invention relates to an electric drive unit having an electric motor, a gear, a gear housing, and a pole housing. A number of parts of the electric drive unit (1) and the production cost are both reduced by the integral embodiment of the gear housing (5) and pole housing (10) and by injection molding the short-circuit element (36) and magnet (32) into the pole housing (10). Such an electric drive unit (1) is used in windshield wiper motors or control motors in the automotive field.Type: GrantFiled: November 14, 2000Date of Patent: September 6, 2005Assignee: Robert Bosch GmbHInventor: Detlef Lauk
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Patent number: 6639335Abstract: In an electric-motor drive device for auxiliary devices in motor vehicles, such as sliding roofs, window controls, windshield wipers, and the like, having a gear housing (17) and a cup-shaped motor housing (13) that is slipped with its opening edge (131) onto the gear housing (17) and fixed thereon, to reduce manufacturing costs and the requisite installation space and improve force introduction from the motor housing (13) to the gear housing (17), the motor housing (13), in its slip-on region, is roller-burnished into the gear housing (17).Type: GrantFiled: August 25, 2000Date of Patent: October 28, 2003Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Erik Maurer, Andreas Wiegert, Richard Hurst, Anton Waibel
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Patent number: 6548978Abstract: A suppression circuit, in particular for suppressing the noise of the wiper motor of a motor-vehicle, is provided with at least two capacitors (4, 5), which are situated between one common (1) terminal and two separate terminals (2, 3), and it is provided with pulse limitation. For purposes of pulse limitation, each capacitor has connected to it in parallel the series circuit composed of the cathode-anode path of a diode (6, 7) and of the anode-cathode path of a Zener diode (8). The suppression circuit according to the present invention, in one advantageous application, can be embedded as a suppression module in a suppression device, which is provided in a capacitor enclosure. The capacitor enclosure has three contact terminals, which stand in a fixed spatial relationship to each other, irrespective of the number of suppression components, and it can be block-like or cuboid in shape.Type: GrantFiled: July 9, 2001Date of Patent: April 15, 2003Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Michael Haerer, Andreas Wiegert
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Patent number: 6396230Abstract: A windshield wiping device, in particular for cleaning a windshield of the motor vehicle, includes at least one wiper and a control device. The at least one wiper is driven by an electrical drive motor and displaceable between two end positions. The control device processes a current wiper position and switching signals of a manually operated switching element via input variables. The control device controls a supply voltage of the electrical drive motor and a wiper velocity via an output variable. The at least one wiper moves from end position to end position. In a first switch position of the switching element, the at least one wiper has a first velocity. In a second switch position of the switching element, the at least one wiper has a second velocity, which is greater than the first velocity. The at least one wiper in the second switch position moves at the first velocity each time it is in the vicinity of an upper and lower end position.Type: GrantFiled: November 22, 2000Date of Patent: May 28, 2002Assignee: Robert Bosch GmbHInventor: Detlef Lauk
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Patent number: 6376962Abstract: An electric drive unit for vehicle systems, such as power windows and windshield wipers, having a commutator motor that has a commutator and at least two commutator brushes. The electric drive unit includes electrical components of an electronic system for the motor. To reduce production costs and simplify assembly, the electrical components are electrically secured to a lead frame that makes the electrical connection between the components and the commutator motor and the commutator brushes are embodied as hammerhead brushes, whose carrier plates are bent in one piece out of the lead frame.Type: GrantFiled: October 13, 2000Date of Patent: April 23, 2002Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Erik Maurer, Andreas Wiegert, Bernd Bock, Richard Hurst
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Patent number: 6288466Abstract: An electric drive unit having an electric drive motor and a transmission. The electric drive motor has an armature shaft which extends, for example, to a worm shaft of the transmission. The shaft is embodied of one piece with the armature shaft. A first bearing and a second bearing are provided to support the armature shaft. The second bearing is embodied as a ball bearing with an outer ring, an inner ring, and balls. The inner ring is press-fitted in a rotationally fixed manner onto the armature shaft. The outer ring is slid into a receiving bore disposed in the transmission housing and is pressed against an axial stop face adjoining the receiving bore by means of a retaining part that is supported in an installation channel and has flexible tongues that are directed toward the outer ring. This axial pressing can be produced in an easy-to-assemble fashion and is also inexpensive thanks to a low cost of the retaining part.Type: GrantFiled: August 25, 2000Date of Patent: September 11, 2001Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Erik Maurer, Andreas Wiegert, Richard Hurst, Anton Waibel
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Patent number: 6276838Abstract: The invention relates to a shaft and hub connection for securing bearings, in particular ball bearings (12), on a shaft (10). The proposal is made that the hub part (14) of the bearing (12) encompassing the shaft (10) have at least one axial surface (20), against which a projection (24, 30) rests, which is produced from the shaft (10) by means of plastic deformation and prevents an axial movement.Type: GrantFiled: October 1, 1999Date of Patent: August 21, 2001Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Lothar Fauth, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Erik Maurer, Richard Hurst, Anton Waibel, Andreas Wiegert
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Patent number: 6177742Abstract: An electric drive unit, for windshield wipers of a motor vehicle, including a drive motor, having an armature accommodated in a substantially cup-shaped pole housing, and including a gearbox, secured by a face end to the pole housing for receiving at least one worm, wheel supported on a power takeoff shaft. The worm wheel engages a worm connected to an armature shaft of the drive motor. The power takeoff shaft is supported in an eccentric bush which is rotatable to set the axial spacing between the armature shaft and the power takeoff shaft and can be mounted in the rotated state, in a manner fixed against relative rotation, in the gearbox. The eccentric bush is embodied in a graduated fashion, such that it has a larger diameter on a side toward the flange than on another side remote from the flange.Type: GrantFiled: February 26, 1999Date of Patent: January 23, 2001Assignee: Robert Bosch GmbHInventors: Detlef Lauk, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Richard Hurst
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Patent number: 6163096Abstract: An electrical drive unit for windshield wipers of a motor vehicle, including a drive motor which has an armature accommodated in a substantially cup-shaped housing, and a substantially cup-shaped gearbox for receiving gear elements which is secured on a face end to the housing and is closable by a gearbox cover. A closable opening is provided in the gearbox or housing, through which opening a brush holder support that holds commutator brushes can be pushed in a radial direction onto the commutator of the drive motor.Type: GrantFiled: February 26, 1999Date of Patent: December 19, 2000Assignee: Robert Bosch GmbHInventors: Gerhard Michenfelder, Detlef Lauk, Ernst Fischer, Hansjoerg Karcher, Juergen Herp, Richard Hurst