Patents by Inventor Christoph Widmann

Christoph Widmann 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).

  • Method for operating an internal combustion engine
    Patent number: 9068521
    Abstract: An internal combustion engine has a cylinder in which a combustion chamber, bounded on one side by a reciprocating piston, is formed. The piston drives a crankshaft rotatably mounted in a crank casing. The internal combustion engine has an inlet opening for combustion air into the crank casing, and an outlet opening out of the combustion chamber. The internal combustion engine has at least one overflow duct which connects the crank casing interior to the combustion chamber. The internal combustion engine has a crank casing pressure sensor for measuring the crank casing pressure, a device for determining the rotational position of the crankshaft, and an evaluation device which evaluates the measurements of the crank casing pressure sensor. A method for operating the internal combustion engine is provided where the ambient pressure is determined using the crank casing pressure measured by the crank casing pressure sensor.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 30, 2015
    Assignee: ANDREAS STIHL AG & CO. KG
    Inventors: Claus Naegele, Andreas Paa, Clemens Klatt, Christoph Widmann
  • METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    Publication number: 20130160751
    Abstract: An internal combustion engine has a cylinder in which a combustion chamber, bounded on one side by a reciprocating piston, is formed. The piston drives a crankshaft rotatably mounted in a crank casing. The internal combustion engine has an inlet opening for combustion air into the crank casing, and an outlet opening out of the combustion chamber. The internal combustion engine has at least one overflow duct which connects the crank casing interior to the combustion chamber. The internal combustion engine has a crank casing pressure sensor for measuring the crank casing pressure, a device for determining the rotational position of the crankshaft, and an evaluation device which evaluates the measurements of the crank casing pressure sensor. A method for operating the internal combustion engine is provided where the ambient pressure is determined using the crank casing pressure measured by the crank casing pressure sensor.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 27, 2013
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Claus Naegele, Andreas Paa, Clemens Klatt, Christoph Widmann
  • Cutting tool
    Patent number: D1024151
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: April 23, 2024
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Christoph Zeiner, Makoto Abe, Andreas Widmann