Patents Assigned to John J. Rausch
  • Process for surface diffusing steel products in coil form
    Patent number: 4526817
    Abstract: Steel product in coil form such as sheet steel is uncoiled, then preheated, continuously transported through a lead bath containing chromium, then cooled, and finally recoiled. When the coiled steel does not have titanium, titanium is included in the bath in order to improve the corrosion resistance of the final product.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: July 2, 1985
    Assignees: Material Sciences Corporation, Ray J. Van Thyne, John J. Rausch
    Inventors: John J. Rausch, Russell F. Novy
  • Bonded structure and process of making same
    Patent number: 4394422
    Abstract: Two ferrous-based components are bonded together to form a bonded structure and simultaneously a layer is diffused into the surfaces of the components. The process involves first placing the components in juxtaposition, and contacting the juxtaposed components with a molten lead bath having at least one diffusing element therein. One component may be a corrugated sheet and the other may be an uncorrugated or less corrugated sheet, the sheets being in the form of helixes interposed in each other to create a substantial number of fold lines being in contact with the surface of the uncorrugated sheet. Alternately, a sheet with projections may be used in place of the corrugated sheet.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: July 19, 1983
    Assignees: Ray J. Van Thyne, John J. Rausch, Material Sciences Corporation
    Inventors: Ray J. Van Thyne, John J. Rausch
  • Process of making surface alloyed parts
    Patent number: 4372995
    Abstract: Predetermined diffusing elements such as chromium and/or aluminum are diffused into the surface of a ferrous-based part while preventing, or at least minimizing, bonding of portions of such part to each other or to a fixture with which the part is processed, by constructing the fixture of a barrier material or placing a barrier layer between the member and the part. The barrier has a composition to substantially preclude diffusion therein of the predetermined element and that is capable of withstanding a molten-lead alloy bath. Then the part is contacted by a molten alloy bath consisting essentially of lead and the diffusing elements. Thereafter, the part is separated from the member. The process finds particular use when the part is coiled sheet steel, in which case adjacent flights of coil are spaced by separator means which is made of a barrier material or carries a barrier layer.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: February 8, 1983
    Assignees: John J. Rausch, Ray J. Van Thyne, Material Sciences Corporation
    Inventors: John J. Rausch, Ray J. Van Thyne
  • Selective chromizing in a molten lead medium
    Patent number: 4242420
    Abstract: A ferrous based substrate is diffusion coated by contacting the substrate with a molten alloy bath consisting essentially of lead and chromium, wherein the quantity of chromium is less than 0.85% of the weight of the lead.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: December 30, 1980
    Assignees: John J. Rausch, Ray J. Van Thyne, Material Sciences Corporation
    Inventors: John J. Rausch, Ray J. Van Thyne
  • Selective chromizing in a molten lead medium
    Patent number: 4168333
    Abstract: A ferrous based substrate is diffusion coated by contacting the substrate with a molten alloy bath consisting essentially of lead and chromium, wherein the quantity of chromium is less than 0.85% of the weight of the lead.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: September 18, 1979
    Assignees: John J. Rausch, Ray J. Van Thyne, Material Sciences Corporation
    Inventors: John J. Rausch, Ray J. Van Thyne