Patents by Inventor Stephen E. Dzieman

Stephen E. Dzieman 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: 6155147
    Abstract: An improved torque limiting screwdriver including a shaft extending from a first end of the screwdriver body, the shaft including a first plurality of indicia thereon, and an adjustment cap arranged to be located at a second end of the screwdriver body. The adjustment cap rotatable to selectively engage a selected detent located on the bottom of the adjustment cap. A lock pin arranged to engage one of the detents to retain the adjustment cap in its select position, maintaining an accurate specific torque value for the torque limiting screwdriver.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 5, 2000
    Assignee: Ryeson Corporation
    Inventor: Stephen E. Dzieman
  • Patent number: 6076439
    Abstract: An improved torque limiting screwdriver including a shaft extending from a first end of the screwdriver body, the shaft including a first indicia thereon, and an adjustment cap arranged to be located at a second end of the screwdriver body. The adjustment cap rotatable to selectively engage a selected detent located on the bottom of the adjustment cap. The selective rotation of the adjustment cap is aligned with indicia on a selected detent, indexing of both the indicia on the shaft and the indicia on the adjustment cap, providing an accurate specific torque value for the torque limiting screwdriver.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: June 20, 2000
    Assignee: Ryeson Corporation
    Inventor: Stephen E. Dzieman