Title:
【発明の名称】バイメタル式コイニングブランクの外側エレメントと内側エレメントとを分離しないように組み合わせる方法
Document Type and Number:
Japanese Patent JPH0751088
Kind Code:
B2
Abstract:
A coin blank, particularly for minting of coins and the like, is formed by an external element (1) of metal or metal alloy having a central aperture, on the edge surface (4) of which are cut perimetrally a series of spaced grooves (5), and by an internal element (6), of metal or metal alloy different from the former, on the edge surface of which is formed a perimetral ridge (8,9), said external and internal elements being coupled inseparably during the minting operation through the plastic flow of the material from said perimetral ridge (8,9) into said grooves (5) in said external element (1) 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 (6), provided between adjacent grooves (5).
Inventors:
Yerpo Nicolas
Patalini clown
Patalini clown
Application Number:
JP23227390A
Publication Date:
June 05, 1995
Filing Date:
August 31, 1990
Export Citation:
Assignee:
Isstate Polygraph Icoezetadero Stato
Bellres S.R.El.Sochieta Perla Moneta Twione E Huonderia dei Precigione
Bellres S.R.El.Sochieta Perla Moneta Twione E Huonderia dei Precigione
International Classes:
A44C21/00; B21K25/00; B44B5/00; A44C3/00; (IPC1-7): A44C21/00; A44C3/00
Domestic Patent References:
| JP5884624A | ||||
| JP583743A | ||||
| JP49108000U |
Attorney, Agent or Firm:
Akira Asamura (3 outside)