Patents Represented by Attorney W. B. Noll

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  • Chemical post-treatment of selectively galvanized steel strip and sheet
    Patent number: 4708779
    Abstract: This invention is directed to a method of treating a selectively galvanized steel strip, such as one-side electrogalvanized sheet, to improve the appearance and paintability of the non-galvanized areas of said strip. The post chemical processing of the strip, which processing does not chemically attack the zink-coated areas of the strip, comprises the steps of applying to the strip a solution of an aqueous bifluoride salt, followed thereby by rinsing said strip with a dilute caustic solution.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: November 24, 1987
    Assignee: Bethlehem Steel Corporation
    Inventors: Stavros G. Fountoulakis, Richard N. Steinbicker, Daniel E. Hruskoci, Rajesh K. Singh
  • Culvert structure having corrugated ribbing support
    Patent number: 4318635
    Abstract: A low-profile culvert structure comprising in combination, a plurality of arch-shaped corrugated structural metallic sheets secured to each other in such a manner as to form an elongated shell having typically a low rise to span ratio, and a plurality of transverse reinforcing ribs, each in the form of a corrugated metallic sheet. The transverse reinforcing ribs are secured to said shell at intervals along the length thereof, preferably to both the interior and exterior of the elongated shell.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: March 9, 1982
    Assignee: Bethlehem Steel Corporation
    Inventors: Mark A. Gurtner, Charles D. Gorman