Patents by Inventor Martti Pyy

Martti Pyy 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).

  • Continuous process for charging and discharging a carbonization furnace moving in a circle and apparatus for embodying said process
    Patent number: 5882484
    Abstract: The object of the invention is a continuous method for charging and discharging carbonization furnaces (15) moving in a circle, in which method the charging and the discharging are effected in a closed process mainly simultaneously at the opposite ends of the furnace, and the gases are collected and cleaned. Another object of the invention is an apparatus for implementing the method. The equipment comprises carbonization furnaces (15) moving in a circle, a charging device (11, 14, 32), and a discharging device (18, 19), and at least one gas duct for each furnace, the duct being connected at the one end thereof to the furnace and at the other end to a gas collector. According to the invention, the charging device is docked in a gastight manner to the one end of the furnace by means of a docking device (35), and the discharging device is attached in a gas-tight manner to the other end of the furnace for charging and discharging mainly at the same time.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: March 16, 1999
    Assignee: Pyyn Puuhiili Oy
    Inventor: Martti Pyy