Patents by Inventor John A. Mattera

John A. Mattera 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).

  • Power tool for torquing threaded pipes
    Patent number: 5201256
    Abstract: A power tool for torquing a threaded member of a movable device, such as a pipe nipple of a gas meter sent for repairs, comprises a rigid disk with a bore to fit the nipple so that the disk can be placed against the meter, a block attached to the disk to prevent its movement, a reaction arm that cam be rotatably fitted on the nipple and locked to the disk, a torque arm that can be clamped on the nipple adjacent the reaction arm, and a hydraulic cylinder with its opposite ends connected to the reaction and torque arms to provide the force to move the torque arm.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: April 13, 1993
    Assignee: The Brooklyn Union Gas Company
    Inventors: Irving N. Schneider, John A. Mattera