Patents by Inventor Dennis Quest

Dennis Quest 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).

  • Spark plug electrode and method for manufacturing this spark plug electrode and spark plug including a spark plug electrode
    Patent number: 11056859
    Abstract: A spark plug electrode includes an electrode base body made of a first material and an ignition element made of a second material and forming an ignition surface for a spark plug. The electrode base body and the ignition element are integrally joined to each other via a welding seam. A mixing rate for the first or second materials is less than 15 weight percent in a half of the welding seam adjacent to the ignition element. A method for manufacturing a spark plug electrode includes: providing an electrode base body and an ignition element; carrying out a welding process joining the electrode base body and the ignition element while forming a welding seam, where a welding beam guided over the surface of the spark plug electrode by tilting a reflection element, thereby producing a welding seam at a joining point between the electrode base body and the ignition element.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 6, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Zhuo Tang, Dennis Quest, Stefan Nufer
  • SPARK PLUG ELECTRODE AND METHOD FOR MANUFACTURING THIS SPARK PLUG ELECTRODE AND SPARK PLUG INCLUDING A SPARK PLUG ELECTRODE
    Publication number: 20200176956
    Abstract: A spark plug electrode includes an electrode base body made of a first material and an ignition element made of a second material and forming an ignition surface for a spark plug. The electrode base body and the ignition element are integrally joined to each other via a welding seam. A mixing rate for the first or second materials is less than 15 weight percent in a half of the welding seam adjacent to the ignition element. A method for manufacturing a spark plug electrode includes: providing an electrode base body and an ignition element; carrying out a welding process joining the electrode base body and the ignition element while forming a welding seam, where a welding beam guided over the surface of the spark plug electrode by tilting a reflection element, thereby producing a welding seam at a joining point between the electrode base body and the ignition element.
    Type: Application
    Filed: July 31, 2018
    Publication date: June 4, 2020
    Inventors: Zhuo Tang, Dennis Quest, Stefan Nufer
  • Spark plug electrode, method for its production, and spark plug
    Patent number: 10008832
    Abstract: A spark plug electrode having greater mechanical stability. The spark plug electrode includes a base body and a noble metal pin situated on the base body, the base body and the noble metal pin being connected to each other by a connection zone. The connection zone has at least one first welding seam and one second welding seam.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: June 26, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dennis Quest, Detlef Hartmann, Dominic Lang, Guido Hannich, Stefan Nufer
  • SPARK PLUG ELECTRODE, METHOD FOR ITS PRODUCTION, AND SPARK PLUG
    Publication number: 20170331260
    Abstract: A spark plug electrode having greater mechanical stability. The spark plug electrode includes a base body and a noble metal pin situated on the base body, the base body and the noble metal pin being connected to each other by a connection zone. The connection zone has at least one first welding seam and one second welding seam.
    Type: Application
    Filed: October 1, 2015
    Publication date: November 16, 2017
    Inventors: Dennis Quest, Detlef Hartmann, Dominic Lang, Guido Hannich, Stefan Nufer