Patents by Inventor Ralf Lehmann

Ralf Lehmann 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: 20220092807
    Abstract: A method and a system for monitoring a spatial area in a personnel interlock are provided. Image data are acquired which represent a plurality of depth images of the spatial area which have been acquired simultaneously and from different positions in the area of the personnel interlock, in each case by a respective 3D image sensor arranged at the corresponding position. For each of the depth images, an associated characteristic depth image value is calculated. A total image value is obtained by combining the characteristic depth image values of the various depth images in accordance with a predetermined monotonic combination rule. An estimation result for the probability that more than one person is present in the spatial area is then determined.
    Type: Application
    Filed: January 28, 2020
    Publication date: March 24, 2022
    Inventors: Gerhard Niebling, Ralf Lehmann-Elle, Deepack Kumar
  • Patent number: 11201519
    Abstract: The invention relates to a method (100) for electrically contact-connecting a winding (40) of an electrical machine (1) to a printed circuit board (92), wherein the electrical machine (1) has an armature (10) with a large number of teeth (20), wherein at least one winding (40), which is formed by an electrical conductor (42), is formed on one of the teeth (20).
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: December 14, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Devermann, Asli Arslan-Huerst, Harald Merz, Ilya Kuperberg, Michael Soellner, Peter Beck, Ralf Lehmann, Wolfgang Glueck
  • Publication number: 20200195079
    Abstract: The invention relates to a method (100) for electrically contact-connecting a winding (40) of an electrical machine (1) to a printed circuit board (92), wherein the electrical machine (1) has an armature (10) with a large number of teeth (20), wherein at least one winding (40), which is formed by an electrical conductor (42), is formed on one of the teeth (20).
    Type: Application
    Filed: September 20, 2017
    Publication date: June 18, 2020
    Inventors: Thomas Devermann, Asli Arslan-Huerst, Harald Merz, Ilya Kuperberg, Michael Soellner, Peter Beck, Ralf Lehmann, Wolfgang Glueck
  • Publication number: 20200173073
    Abstract: The present invention relates to a method for producing a needle punch carpet having a velour-type and more wear-resistant surface which has advantageous characteristics over conventional flat needle nonwovens and dilour carpets.
    Type: Application
    Filed: May 15, 2018
    Publication date: June 4, 2020
    Inventors: Ralf LEHMANN, Jochen Erhard GLASS, Matthias DICKERT, Volkmar SCHULZE
  • Patent number: 10574113
    Abstract: The invention relates to an electric motor (1) comprising —a fitting (10) having a plurality of teeth (20) and grooves (30) formed between the teeth (20), —at least one winding (40) formed by a winding conductor (42), wherein at least a part of the winding (40) extends within one of the grooves (30), —an insulating element (50) which electrically separates the winding (40) from the fitting (10). It is proposed according to the invention that the insulating element (50) comprises a guide means (52) which is formed within one of the grooves (30), the guide means (52) guiding a winding conductor section (44) of a winding conductor (42) and the winding conductor (42) being guided out of the fitting (10) by the guide means (52).
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: February 25, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Harold Bitzer, Peter Hauser, Ralf Lehmann, Wolfgang Glueck
  • Publication number: 20180235092
    Abstract: The invention relates to a housing (1), in particular for a control unit of a fan motor, having at least two housing elements (10, 30) and having a connecting element (50), wherein the housing elements (10, 30) interact with the connecting element (50), and wherein the brought-together housing elements (10, 30) form an interior region (5). According to the invention, a duct (40) is formed which, before and/or during the assembly of the housing (1), in particular before and/or during the bringing-together of the housing elements (10, 30), connects the interior region (5) and the surroundings of the housing (1) and permits a fluid flow between the interior region (5) and the surroundings, and which, upon the completion of the assembly process, is closed off by way of the interaction of at least one housing element (10, 30) and the connecting element (50).
    Type: Application
    Filed: June 16, 2016
    Publication date: August 16, 2018
    Inventors: Michael Schermann, Asli Arslan-Huerst, Dirk Vollmer, Linh-Thao Stubenbord, Ralf Lehmann, Wolfgang Glueck
  • Publication number: 20180159399
    Abstract: The invention relates to an electric motor (1) comprising—a fitting (10) having a plurality of teeth (20) and grooves (30) formed between the teeth (20),—at least one winding (40) formed by a winding conductor (42), wherein at least a part of the winding (40) extends within one of the grooves (30),—an insulating element (50) which electrically separates the winding (40) from the fitting (10). It is proposed according to the invention that the insulating element (50) comprises a guide means (52) which is formed within one of the grooves (30), the guide means (52) guiding a winding conductor section (44) of a winding conductor (42) and the winding conductor (42) being guided out of the fitting (10) by the guide means (52).
    Type: Application
    Filed: April 19, 2016
    Publication date: June 7, 2018
    Inventors: Harold Bitzer, Peter Hauser, Ralf Lehmann, Wolfgang Glueck
  • Patent number: 9071099
    Abstract: The invention relates to a blower (99), in particular for an engine cooling blower in a motor vehicle, comprising a housing (10) having a cooling air guide device (200), wherein the housing (10) is designed for mounting a drive unit (102, 103) and the cooling air guide device (200) in the motor vehicle, and for guiding a cooling air flow (20, 30, 31, 32) to the drive unit (102, 103), wherein the cooling air guide device (200) is designed as one piece with the housing (10).
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: June 30, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Ralf Lehmann
  • Patent number: 8389955
    Abstract: A sample carrier (3) for thinning a sample (1) taken from e.g. a semiconductor wafer. The sample carrier comprises a rigid part (5), e.g. made of e.g. copper, with an outer boundary (6), and a supporting film (4), e.g. made of carbon, extending beyond the outer boundary. By placing the sample on the supporting film, the sample can be attached to the rigid structure using e.g. IBID. The supporting film aligns the samples when they are placed onto it. After attaching the sample to the rigid structure the sample can be thinned with e.g. an ion beam, during which thinning the supporting film is locally removed as well. The invention results in better alignment of the sample to the sample carrier, and also in more freedom how the sample is transported from the wafer to the sample carrier, e.g. with the help of an electrically charged glass needle (2). The latter eliminates the attaching/severing steps that are normally associated with the transport of a sample to a sample carrier.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: March 5, 2013
    Assignee: FEI Company
    Inventor: Ralf Lehmann
  • Publication number: 20120207631
    Abstract: The invention relates to a blower (99), in particular for an engine cooling blower in a motor vehicle, comprising a N housing (10) having a cooling air guide device (200), wherein the housing (10) is designed for mounting a drive unit (102, 103) and the cooling air guide device (200) in the motor vehicle, and for guiding a cooling air flow (20, 30, 31, 32) to the drive unit (102, 103), wherein the cooling air guide device (200) is designed as one piece with the housing (10).
    Type: Application
    Filed: July 27, 2010
    Publication date: August 16, 2012
    Applicant: ROBERT BOSCH GMBH
    Inventor: Ralf Lehmann
  • Patent number: 7549557
    Abstract: Disclosed is a device for separating objects from a quantity of objects located in a receptacle. In order to keep the constructional and technical effort of said device low while allowing for great tolerance regarding the dimensions or diameters of the objects, a pivotable flap is provided at the outlet of the receptacle for releasing an object that is to be separated while an element for retaining the remaining objects in the receptacle is provided above the flap in the direction of movement of the objects.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: June 23, 2009
    Assignee: Borgwaldt KC GmbH
    Inventor: Ralf Lehmann
  • Publication number: 20080185286
    Abstract: The invention describes a sample carrier (3) for thinning a sample (1) taken from e.g. a semiconductor wafer. The sample carrier comprises a ridged part (5), e.g. made of e.g. copper, with an outer boundary (6), and a supporting film (4), e.g. made of carbon, extending beyond the outer boundary. By placing the sample on the supporting film, the sample can be attached to the rigid structure using e.g. IBID. The supporting film aligns the samples when they are placed onto it. After attaching the sample to the rigid structure the sample can be thinned with e.g. an ion beam, during which thinning the supporting film is locally removed as well. The invention results in better alignment of the sample to the sample carrier, and also in more freedom how the sample is transported from the wafer to the sample carrier, e.g. with the help of an electrically charged glass needle (2). The latter eliminates the attaching/severing steps that are normally associated with the transport of a sample to a sample carrier.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Applicant: FEI COMPANY
    Inventor: RALF LEHMANN
  • Publication number: 20070224028
    Abstract: Disclosed is a device for separating objects from a quantity of objects located in a receptacle. In order to keep the constructional and technical effort of said device low while allowing for great tolerance regarding the dimensions or diameters of the objects, a pivotable flap is provided at the outlet of the receptacle for releasing an object that is to be separated while an element for retaining the remaining objects in the receptacle is provided above the flap in the direction of movement of the objects.
    Type: Application
    Filed: December 16, 2004
    Publication date: September 27, 2007
    Applicant: Borgwaldt KC GmbH
    Inventor: Ralf Lehmann
  • Patent number: 6821226
    Abstract: The method serves for the shift sequence control of a continuous automatic transmission, especially of a motor vehicle, having gear-stage switchover. The transmission ratio of the automatic transmission is adjustable within a set gear stage by means of an adjusting unit. Here, it is provided that a coordinated, data-dependent control of the gear stage switchover and the continuous transmission ratio adjustment takes place with the aid of a common shift sequence control system.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: November 23, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Ralf Lehmann, Uwe Maienberg, Marko Poliansek
  • Publication number: 20030078128
    Abstract: The method serves for the shift sequence control of a continuous automatic transmission, especially of a motor vehicle, having gear-stage switchover. The transmission ratio of the automatic transmission is adjustable within a set gear stage by means of an adjusting unit. Here, it is provided that a coordinated, data-dependent control of the gear stage switchover and the continuous transmission ratio adjustment takes place with the aid of a common shift sequence control system.
    Type: Application
    Filed: October 16, 2002
    Publication date: April 24, 2003
    Inventors: Ralf Lehmann, Uwe Maienberg, Marko Poliansek
  • Patent number: 6429498
    Abstract: The invention relates to a sensor for measuring a magnetic field. The inventive sensor has a high level of measuring sensitivity compared to a Hall probe, comprising several electrically semiconductive layers. The layers are arranged in the form of a power diode connected in the reverse direction, consisting of an anodelayer, a cathode layer and an intrinsically conductive layer enclosed between the two. The anode layer is subdivided by insulation sections into several anode layer areas, these areas being insulated from each other. The cathode layer has an injector area on the areas opposite the insulation sections which is oppositely doped. An electron beam is formed between the injector area and the anode by applying an injection voltage to the injector area. The electron beam is distributed across the areas of the earthed anode layer areas in the form of uniform partial currents.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: August 6, 2002
    Assignee: Forschungszentrum Jülich GmbH
    Inventors: Jakob Schelten, Ralf Lehmann