Patents by Inventor Virgile S. Taddei

Virgile S. Taddei 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: 5188848
    Abstract: An apparatus for making earthen blocks and having a hopper, structure for loading the hopper with a compactible material, structure for verifying that the hopper is filled to a predetermined level, structure for moving the hopper to a mold cavity and emptying the contents into the mold cavity, a first press having a first punch to be forced into the mold cavity to compress the material therein and a second press having a second punch that is held in a fixed position until a predetermined force is exerted by the first press, whereupon the second punch follows movement of the first punch.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: February 23, 1993
    Inventor: Virgile S. Taddei