Patents by Inventor Karl-Heinz Böhm

Karl-Heinz Böhm 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).

  • Patent number: 10920771
    Abstract: A pump drive for conveying a reducing agent for motor vehicle exhaust gas systems, with an electronically commutated direct current motor, a positive displacement pump, and a freezing compensation structure. Also, a modular motor and pump family for forming different pump drives with several such electric motors and pumps. It is the aim of the invention to ensure, in the simplest and most robust manner possible, the integration of a hydraulic unit (gear pump) into an electrical unit (electric motor), a sealing of a wet region from a dry region, an integration of a freezing compensation into the wet region, and a mechanical attachment on the customer side. A modular construction of the electric motor and of the positive displacement pump, which, without a large modification cost, via simple combination of assemblies or modules, can be used for different requirements, is important for this.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 16, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Karl-Heinz Böhm
  • Publication number: 20180340533
    Abstract: A pump drive for conveying a reducing agent for motor vehicle exhaust gas systems, with an electronically commutated direct current motor, a positive displacement pump, and a freezing compensation structure. Also, a modular motor and pump family for forming different pump drives with several such electric motors and pumps. It is the aim of the invention to ensure, in the simplest and most robust manner possible, the integration of a hydraulic unit (gear pump) into an electrical unit (electric motor), a sealing of a wet region from a dry region, an integration of a freezing compensation into the wet region, and a mechanical attachment on the customer side. A modular construction of the electric motor and of the positive displacement pump, which, without a large modification cost, via simple combination of assemblies or modules, can be used for different requirements, is important for this.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 29, 2018
    Applicant: Bühler Motor GmbH
    Inventor: Karl-Heinz Böhm
  • Patent number: 7094996
    Abstract: A method for controlling the temperature of a baking oven having a catalyst, a heating source, an oven chamber temperature sensor, and a catalyst temperature sensor, includes generating an electrical control signal based on a control state, the control state being a function of signals from the electrical sensors and being reached when the catalyst temperature is higher than the oven chamber temperature and the temperature difference between the catalyst temperature and the oven chamber temperature is greater than or equal to a threshold value. The heating source is controlled using the electrical control signal so that the oven chamber temperature is maintained substantially constant.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: August 22, 2006
    Assignee: Miele & Cie KG
    Inventor: Karl-Heinz Boehm
  • Publication number: 20050236394
    Abstract: A method for controlling the temperature of a baking oven having a catalyst, a heating source, an oven chamber temperature sensor, and a catalyst temperature sensor, includes generating an electrical control signal based on a control state, the control state being a function of signals from the electrical sensors and being reached when the catalyst temperature is higher than the oven chamber temperature and the temperature difference between the catalyst temperature and the oven chamber temperature is greater than or equal to a threshold value. The heating source is controlled using the electrical control signal so that the oven chamber temperature is maintained substantially constant.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 27, 2005
    Inventor: Karl-Heinz Boehm
  • Patent number: 6543902
    Abstract: The invention relates to an outside rearview mirror for a motor vehicle. Said rearview mirror comprises a mirror base, to be attached to the motor vehicle; a mirror head, which carries a mirror glass. The invention also relates to a self-blocking drive, arranged in a multipart drive housing, with an electric motor, whose output shaft is in engagement in gear with a reduction gear and/or can be folded and moved back out of the service position (F to P) about a swivel axis and hinged to the motor vehicle under the effect of an external force; and the invention relates to electromechanical or electronic means, detecting a relative movement. In a known servo drive of this type, time consuming installation steps must be performed. Therefore, the object of the present invention is to enable a relatively arbitrary number of ways to lead the motor connections out and to enable the motor to move out of a blocked position while the installation remains simple.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: April 8, 2003
    Assignee: Bühler Motor GmbH
    Inventor: Karl-Heinz Böhm