Patents by Inventor Augusto H. Hijuelos

Augusto H. Hijuelos 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).

  • Prequench cooling for galvanized tubing
    Patent number: 4124932
    Abstract: Steel strip is continuously roll-formed into tubular shape, seam-welded and coated with zinc in a galvanizing bath. The coated tubing is promptly cooled by a prequench flow of cooling water flowing in the direction of movement of the tubing, thus superficially hardening the zinc. Water is pumped into the prequench zone through passageways arranged radial to the tubing and at an angle between 20.degree. and 40.degree. to the direction of movement. Final cooling is effected by immersion in a water bath. Heavier and smoother zinc coatings can be applied as a result.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: November 14, 1978
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Arthur H. Rogove, Augusto H. Hijuelos