Patents by Inventor Nicola Ielpo

Nicola Ielpo 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).

  • Bimetallic coin blank, particularly for coins and the like
    Patent number: 5094922
    Abstract: A coin blank, particularly for minting of coins and the like, is formed by an external element of metal or metal alloy having a central aperture, on the edge surface of which are cut perimetrally a series of spaced grooves, and by an internal element, of metal or metal alloy different from the former, on the edge surface of which is formed a perimetral ridge, said external and internal elements being coupled inseparably during the minting operation through the plastic flow of the material from said perimetral ridge into said grooves in said external element and through the firm fitting of the material from said ridge into the portions of the edge surface of said central aperture in said external element, provided between adjacent grooves.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: March 10, 1992
    Assignees: Istituto Poligrafico E Zecca Dello Stato, Verres S.R.L. Societa per la Monetazione e Fonderia di Precisione
    Inventors: Nicola Ielpo, Piero Patarini
  • Bimetallic composite coin blank for coins, medals and the like
    Patent number: 4472891
    Abstract: A coin blank for the coining of coins, medals and like products, obtained by the forced joining of two metal parts, each of them being of different metal or metal alloy, one forming the internal central part and the other the external perimetrical part, said forced joining of said two component parts being carried out, in a definitive and inseparable way, preferably upon the minting operation.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: September 25, 1984
    Assignee: Istituto Poligrafico e Zecca dello Stato
    Inventor: Nicola Ielpo