Patents by Inventor Norris A Hamilton

Norris A Hamilton 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: 7263920
    Abstract: A torque impact wrench having an elongated tubular metal housing. The front end of an impact wrench is secured to the rear end of the housing by a motor mount. The front end of the drive shaft of the impact wrench is inserted into the rear of an impact socket. The rear end of a drive screw is received in the front end of the impact socket. The drive screw has external threads on its rear portion and external threads on its front portion. The drive screw passes through a screw drive nut whose bore is internally threaded. The drive screw is rigidly secured in the steel housing. The front end of the steel housing has a first load disc closing that end and it removably receives the lower crimping die. A second load disc is longitudinally spaced from the first load disc and it also has a crimping die removably secured thereto. A third load disc is screwed onto the front end of the drive screw.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: September 4, 2007
    Inventor: Norris A Hamilton