Patents by Inventor Harold L. Hanel

Harold L. Hanel 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).

  • Powder actuated tool
    Patent number: 4492329
    Abstract: A tool for driving nails into hard surfaces wherein the driving power is provided by cartridges of explosive powder. An extrudible stop member is provided in the barrel of the tool in front of the piston which is impacted by the piston when the tool is overdriven. The stop member extrudes through a passage to the front of the barrel if repeated overdriving of the piston occurs thereby providing a visual indication of such condition existing. In addition, a novel clamping arrangement is disclosed for retaining the return dog for the piston in the barrel housing.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: January 8, 1985
    Assignee: International Telephone and Telegraph Corporation
    Inventors: John Benson, Harold L. Hanel, Douglas A. Freeman
  • Powder actuated tool
    Patent number: 4487353
    Abstract: A tool for driving nails into hard surfaces wherein the driving power is provided by cartridges of explosive powder. An extrudible stop member is provided in the barrel of the tool in front of the piston which is impacted by the piston when the tool is overdriven. The stop member extrudes through a passage to the front of the barrel if repeated overdriving of the piston occurs thereby providing a visual indication of such condition existing. In addition, a novel clamping arrangement is disclosed for retaining the return dog for the piston in the barrel housing.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: December 11, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventors: John Benson, Harold L. Hanel, Douglas A. Freeman
  • Powder actuated tool safety guard retention
    Patent number: 4446999
    Abstract: A tool for driving nails into hard surfaces wherein the driving power is provided by cartridges of explosive powder. A safety guard on the front end of the tool is retained on the barrel of the tool by a threaded nut. A retention member is provided for preventing the nut from loosening during operation of the tool, yet which allows the nut to be removed when desired for disassembly of the tool.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: May 8, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventors: John Benson, Harold L. Hanel