Patents by Inventor Manfred A. Lurbiecki

Manfred A. Lurbiecki 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).

  • Concrete block forming and facing machine
    Patent number: 4063866
    Abstract: A machine for manufacturing concrete building blocks faced with a decorative material is provided with a mold having a wall which is removable to expose a face of a freshly cast block. The material is arranged on a horizontal panel alongside the block and this panel is pivoted into a vertical position to apply the material to the exposed face of the upright block. A clamping and vibrating action is applied to the panel to further embed the material in the vertical face.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: December 20, 1977
    Inventor: Manfred A. Lurbiecki