Patents by Inventor Lester J. Blaho

Lester J. Blaho 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).

  • Patent number: 4893972
    Abstract: The present invention pertains to a cutting tool for removing upset from inside a tube and which does not force splatter into the inside surface of the tube. The cutting tool comprises a holder and means for enabling the tube to move along the holder. The enabling means is connected to the holder. The cutting tool is also comprised of means for removing the upset inside the tube. The removing means is connected to the holder such that as the tube moves along the holder, the removing means removes the upset from the inside of the tube. There is also means for preventing splatter from being forced into the inside of the tube by the enabling means as the tube moves along the holder.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: January 16, 1990
    Assignee: Pittsburgh Tube Company
    Inventor: Lester J. Blaho
  • Patent number: 4682921
    Abstract: A scarfing tool for scarfing the inside of a tube-like member in which an elongated body is adapted for attachment to the end of an impeder rod. The body includes a cutting tool and a pair of spaced apart rollers aligned with the cutting tool. A thrust roller is pivotably mounted to the side of the body opposite from the cutting tool and rollers to force the cutting tool against the inner area of the tube member to be scarfed. A pair of first and second hydraulic means having associated pistons which are connected to a common source of hydraulic fluid. The first hydraulic piston is operably connected to said thrust roller for actuating said roller into extended contact with the inner tube member and the second piston is operably connected to a bias means to work against said means as the thrust roller is extended by the first hydraulic piston.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: July 28, 1987
    Assignee: Pittsburgh Tube Company
    Inventor: Lester J. Blaho