Patents Assigned to Heritage Silversmiths Limited
  • Electropolishing of stainless steel
    Patent number: 4148699
    Abstract: The electrofinishing of stainless steel items, especially cutlery items, to a substantially corrosion resistant mirror finish is achieved in two steps, the first step involving electropolishing and the second step passivation of the electropolished surface. Apparatus for effecting the electrofinishing operation is also described.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: April 10, 1979
    Assignee: Heritage Silversmiths Limited
    Inventors: Peter Mayer, Robert W. Blair, Mohammed Zamin
  • Electrochemical finishing of stainless steel
    Patent number: 4148707
    Abstract: The electrofinishing of stainless steel items, especially cutlery items, to a substantially corrosion resistant mirror finish is achieved in two steps, the first step involving electropolishing and the second step passivation of the electropolished surface. Apparatus for effecting the electrofinishing operation is also described.
    Type: Grant
    Filed: July 18, 1978
    Date of Patent: April 10, 1979
    Assignee: Heritage Silversmiths Limited
    Inventors: Peter Mayer, Robert W. Blair, Mohammed Zamin
  • Apparatus for electrochemical finishing of stainless steel
    Patent number: 4118301
    Abstract: The electrofinishing of stainless steel items, especially cutlery items, to a substantially corrosion resistant mirror finish is achieved in two steps, the first step involving electropolishing and the second step passivation of the electropolished surface. Apparatus for effecting the electrofinishing operation is also described.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: October 3, 1978
    Assignee: Heritage Silversmiths Limited
    Inventors: Peter Mayer, Robert W. Blair, Mohammed Zamin