Patents by Inventor Jerzy Pawelczyk

Jerzy Pawelczyk 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).

  • Dust control unit
    Patent number: 4371477
    Abstract: This invention relates to a dust control device enabling dust to be wetted with water mist.The device according to this invention has a water impeller 2 situated in a tunnel 11, 12 behind the fan impeller 1 when viewed upon in the air flow direction in the tunnel 11, 12.The water impeller 2 has a water passage 13 with a suitable hole 5 on the circumference, said hole being situated transversally relative to the water passage 13 and being inclined at an angle .alpha. to the radial axis of the water impeller 2 opposed to the rotation of the said water impeller 2.The described device is particularly useful in underground coal mines in places where coal is loaded from one conveyor onto another.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: February 1, 1983
    Assignee: Centrum Konstrukcyjno-Technologiczne Maszyn Gorniczych "Komag"
    Inventors: Krzysztof Karowiec, Janusz Sedlaczek, Alojzy Mura, Jerzy Pawelczyk, Zbigniew Skrzypiec