Patents by Inventor Ludwig Ernst

Ludwig Ernst 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: 4113148
    Abstract: A disperser head for seed and fertilizer drill machines comprises a disperser element which is drivable about a vertical axis and opens into discharge sockets. The disperser element consists of a short pipe member which is chargeable from the top and is bent off at its lower end by about 45.degree.. A conveying air line opens with a central part from the top into the short pipe member, while it subjects with an annular part surrounding the central part drive blades generally extending on helical lines and arranged externally at the short pipe member to conveying air in order to drive the short pipe member. The supplying of the material that is to be dispersed is effected by means of a conveying screw each for the material sorts which are simultaneously to be dispersed, each screw opening laterally upstream of the short pipe member thereinto.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: September 12, 1978
    Inventor: Ludwig Ernst