Patents by Inventor John H. Commander

John H. Commander 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).

  • Plating process for electroless nickel on zinc die castings
    Patent number: 5578187
    Abstract: A process is provided for plating zinc die cast substrates with an electroless nickel coating comprising depositing an electrolytic zinc layer on the substrate followed by depositing a first electroless nickel layer on the electrolytic zinc layer using a first alkaline electroless nickel bath and then depositing a finish electroless nickel layer on the first electroless nickel layer using an acidic electroless nickel bath. In a preferred embodiment, a second electroless nickel layer is deposited on the first electroless nickel layer using a second alkaline electroless nickel bath. It is preferred that at least one and preferably all of the electroless nickel baths contain an effective amount of antimony ions to enhance bath stability and metal to metal adhesion. Mechanical cleaning of the zinc die casting before plating is preferred.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: November 26, 1996
    Assignee: Enthone-Omi, Inc.
    Inventors: Mark W. Zitko, John H. Commander, Victor J. Waldman
  • Alkaline zinc and zinc alloy electroplating baths and processes
    Patent number: 5435898
    Abstract: An aqueous bath for electrodepositing zinc and zinc alloys wherein the alloying metals are selected from the group consisting of iron, cobalt and nickel and containing an effective additive amount of a quaternary ammonium polymer to produce enhanced deposits. A process for electrodepositing zinc and zinc alloys using the baths of the invention is also disclosed.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: July 25, 1995
    Assignee: Enthone-OMI Inc.
    Inventors: John H. Commander, Victor J. Waldman
  • Bright tin electrodeposition composition
    Patent number: 5061351
    Abstract: A vinyl-pyridine or vinyl-quinoline quaternary derivative is provided to enhance the brightness and operating properties of tin aqueous sulfuric acid plating baths.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: October 29, 1991
    Assignee: Enthone-OMI, Inc.
    Inventors: John H. Commander, Vincent Paneccasio, Jr.