Patents by Inventor Patrick McKevitt

Patrick McKevitt 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).

  • Patent number: 5879465
    Abstract: A method and apparatus for removing oxide scale from the surface of hot-rolled stainless steel strip comprises uncoiling the steel strip coil, removing the coil bias and cracking the surface scale in a first scalebreaking apparatus, flattening the strip by removing edge wave and center buckle to a flatness approaching table top flat, the tolerable deviation therefrom depending upon the gauge of the strip, pre-cleaning the strip, pickling the strip in a series of turbulent flow pickle tanks using a dilute acid, such as hydrochloric acid, desirably in the presence of an acid accelerator, rinsing the pickled strip with water, vigorously brushing the pickled strip for removing adherent alloying element oxide films not removable by dilute acid pickling, drying the pickled strip, inspecting the strip, electrostatically oiling the strip and recoiling the strip.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: March 9, 1999
    Inventors: Patrick McKevitt, Stanley E. Lapek