Patents by Inventor Jack Walrath

Jack Walrath 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).

  • Engine with low mounted cyclonic air filter assembly
    Patent number: 11352989
    Abstract: An internal combustion engine includes an engine block including a cylinder having a cylinder axis, a piston positioned within the cylinder and configured to reciprocate along the cylinder axis, a crankshaft configured to rotate about a crankshaft axis, an air-fuel mixing device configured to provide an air-fuel mixture to the cylinder, a cyclonic air filter positioned entirely below the air-fuel mixing device, and a duct coupling the cyclonic air filter to the air-fuel mixing device and configured to provide air filtered by the cyclonic air filter to the air-fuel mixing device.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 7, 2022
    Assignee: Briggs & Stratton, LLC
    Inventors: Casey Edward Groh, Adam J. Hellman, Randall J. Klotka, Robert Price, Ed Strommen, Jack Walrath
  • ENGINE WITH LOW MOUNTED CYCLONIC AIR FILTER ASSEMBLY
    Publication number: 20190360436
    Abstract: An internal combustion engine includes an engine block including a cylinder having a cylinder axis, a piston positioned within the cylinder and configured to reciprocate along the cylinder axis, a crankshaft configured to rotate about a crankshaft axis, an air-fuel mixing device configured to provide an air-fuel mixture to the cylinder, a cyclonic air filter positioned entirely below the air-fuel mixing device, and a duct coupling the cyclonic air filter to the air-fuel mixing device and configured to provide air filtered by the cyclonic air filter to the air-fuel mixing device.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 28, 2019
    Applicant: Briggs & Stratton Corporation
    Inventors: Casey Edward GROH, Adam J. Hellman, Randall J. Klotka, Robert Price, Ed Strommen, Jack Walrath