Patents by Inventor Dante R. Calderaro

Dante R. Calderaro 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).

  • Foldable bearer structure for outer moulds
    Patent number: 4169576
    Abstract: A foldable bearing structure for moulding outer surfaces comprises a main post to which are hinged upper and lower beams supported by diagonal elements, with side frames hinged by means of their vertical sides to the main post. The construction is light-weight and its cost is relatively low.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: October 2, 1979
    Inventor: Dante R. Calderaro
  • Foldable bearer structure for inner moulds
    Patent number: 4168052
    Abstract: A foldable bearing trihedron for inner moulding surfaces comprises a triangular portal having a right leg with a horizontal beam at the upper end thereof and a diagonal stay at its lower end, right angle triangles being hinged to the horizontal beam, and the right leg having rectangles hinged thereto.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: September 18, 1979
    Inventor: Dante R. Calderaro