Patents by Inventor Friedrich Steinwandter

Friedrich Steinwandter 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).

  • Internal combustion engine, particularly a diesel engine
    Patent number: 3933142
    Abstract: An internal combustion engine, in particular a Diesel engine, comprising at least one inlet duct consisting of a delivery portion and an adjoining duct portion wound spiral-fashion around the shaft of the associated intake valve, the upper wall of which bulges downwardly at the point of transition from the delivery portion to the spiral-shaped duct portion in such a manner that the cross-sectional area of the inlet duct is reduced above the valve diameter extending at a right angle in relation to the axis of the delivery portion.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: January 20, 1976
    Assignee: Hans List
    Inventors: Hans List, Rainer Cichocki, Karl Kirchweger, Friedrich Steinwandter