Patents by Inventor Sala Carlo

Sala Carlo 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).

  • Self-threading screw provided with a point and apparatus to produce it
    Patent number: 6764263
    Abstract: A self-threading screw is described which includes a (basically) conical point set at the end of its shank opposite that where the head is housed, and a sunken zone set between the end of the screw shank and the conical point. In addition, an apparatus is described to produce a self-threading screw provided with a point and a sunken zone, in which at least the thread of the self-threading screw, the conical point and the sunken zone are simultaneously produced by rolling.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: July 20, 2004
    Inventor: Sala Carlo
  • Self-threading screw provided with a point and apparatus to produce it
    Publication number: 20010007629
    Abstract: “A self-threading screw is described which includes a (basically) conical point set at the end of its shank opposite that where the head is housed, and a sunken zone set between the end of the screw shank and the conical point.
    Type: Application
    Filed: January 2, 2001
    Publication date: July 12, 2001
    Inventor: Sala Carlo