Patents by Inventor Reuven Merker

Reuven Merker 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).

  • Method for obtaining bright zinc and cadmium electroplates using carboxamide additives
    Patent number: 4177131
    Abstract: The addition of an inner salt of a quaternized pyridine carboxamide, preferably 1-benzyl pyridinium-3-carboxamide to aqueous alkaline electroplating baths containing zinc and cadmium ions results in smooth, bright deposits of these metals. High plating efficiency with low consumption of the additive compound is obtained using it either alone or in combination with small amounts of nicotinamide.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: December 4, 1979
    Assignee: The Metalux Corporation
    Inventors: Reuven Merker, Salvatore Lucca
  • Purification of nickel and cobalt electroplating solutions
    Patent number: 4053400
    Abstract: Zinc, copper and/or iron impurities ordinarily associated with nickel or cobalt electroplating baths can be removed from solution by introducing an amount of a predetermined and selected alkylthiuram sulfide compound into the electroplating bath sufficient to convert the zinc, copper and/or iron impurities into relatively insoluble metal salts. The insoluble salts may then be removed from the bath by passing the treated solution through a standard filtering system.
    Type: Grant
    Filed: September 20, 1973
    Date of Patent: October 11, 1977
    Assignee: The Metalux Corporation
    Inventors: Reuven Merker, Salvatore Lucca