Patents by Inventor Dancho N. Velikov

Dancho N. Velikov 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).

  • Device for the dispersion of cement solutions
    Patent number: 4272198
    Abstract: A device for dispersing of cement such as Portland cement in water to form a solution or dispersion thereof. The device includes a barrel with coaxially arranged wheel and director therein. Upon the hub of the wheel and parallel to its center line wedge-shaped blades are mounted circularly, thereabout the sharp edge of the wedge-shaped blades being oriented in the direction of rotation of the wheel and the radially outer side of the wedge-shaped blades forming acute angles with the direction of movement of the blades. Each acute angle lies between 5.degree. and 30.degree., and the peripheral speed of the wheel lies in the range of from 10 m/sec to 25 m/sec.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: June 9, 1981
    Assignee: VMEI (Vish Maschinno-Elektrotechnicheski Institute)
    Inventors: Dancho N. Velikov, Kancho T. Kanchev, Stanislav A. Ivanov, Ilye H. Ivanov, Hristo D. Tepavicharov