Including Tool Driving By Impact Delivering Component Or Cooperating Anvil Patents (Class 81/463)
  • Patent number: 4268926
    Abstract: A rescue tool with an extended hollow housing has the shaft of a tool bit mounted in one end thereof for reciprocable motion. A substantially solid hammer is manually driven to strike the tool bit, the hammer extending the greater portion of the length of the housing when striking the tool bit. Manual actuation of the hammer is achieved by means of a shroud having a handgrip on its outer surface, the shroud being secured to the hammer at the end away from the tool bit. The hammer may be locked with respect to the housing to provide a pry bar of two different lengths. Securing the hammer to prevent complete withdrawal of the hammer from the housing is achieved by an easily removable snap ring arrangement.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: May 26, 1981
    Assignee: Paratech Incorporated
    Inventor: George F. Roxton
  • Patent number: 4253353
    Abstract: An impact wrench for hexagonal nuts including a unitary metal plate having a central hexagonally shaped aperture and six equally peripherally spaced notches, each having an impact surface coplanar with successive sides of the nut.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: March 3, 1981
    Inventor: Paul P. Symbol