Patents by Inventor Robert S. Saitta

Robert S. Saitta 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).

  • Earth borer
    Patent number: 6637521
    Abstract: An earth borer includes a thin-walled tubular shaft (4), a shank (2) provided at one end of the tubular shaft (4), and a drilling head (5) provided at another, opposite end of the tubular shaft, projecting radially beyond the tubular shaft (4), and having at least one cutter for breaking the bore core and (6, 6a, 6b, 6c, 6d) extending, at least partially, radially inward and at least one internal groove (7, 7a, 7b) associated with the at least one cutter, and a releasable tubular connection member (8) for drivingly connecting the shank (2) with tubular shaft (4) for joint rotation with each other.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: October 28, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventor: Robert S. Saitta
  • Twist drill
    Patent number: 6601659
    Abstract: A twist drill including a spiral-forming hollow shaft (3) having a spiral-shaped inner surface, and drilling head(5) and shank (6) connected with the shaft (3) at its opposite ends, respectively; and a method for forming such a twist drill.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: August 5, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Robert S. Saitta, Troy D. Wells, Christian Putzi
  • Earth borer
    Publication number: 20030010538
    Abstract: An earth borer including a thin-walled tubular shaft (4) having smooth inner and outer surfaces, a shank (2) provided at one end of the tubular shaft (4), a drilling head (5) provided at another, opposite end of the tubular shaft, projecting radially beyond the tubular shaft (4), and having at least one cutter (6, 6a, 6b, 6c, 6d) extending, at least partially, radially inward and at least one internal groove (7, 7a, 7b) associated with the at least one cutter, and a releasable tubular connection member (8) for drivingly connecting the shank (2) with tubular shaft (4) for joint rotation with each other.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventor: Robert S. Saitta
  • Twist drill
    Publication number: 20020170752
    Abstract: A twist drill including a spiral-forming hollow shaft (3) having a spiral-shaped inner surface, and drilling head(5) and shank (6) connected with the shaft (3) at its opposite ends, respectively; and a method for forming such a twist drill.
    Type: Application
    Filed: May 17, 2001
    Publication date: November 21, 2002
    Inventors: Robert S. Saitta, Troy D. Wells, Christian Putzi