Patents by Inventor Erhard Rudolf Boye

Erhard Rudolf Boye 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).

  • Device for performing working operations on a workpiece by detonation of blasting charges
    Patent number: 4061261
    Abstract: A hand-operated portable tool to detonate blasting charges on a workpiece, including a tool body; a front unit, supported by the body and accommodating an explosive cartridge, for engagement with the workpiece; and a rear unit, supported by the body, including an igniting mechanism for the cartridge. The front unit is movable into a retracted position, with the rear unit being releasable only in the retracted position of the front unit. The tool body includes a first handle to release the igniting mechanism, a security mechanism to render the igniting mechanism inoperative, and a second handle and trigger to render the security mechanism temporarily inoperative, thereby rendering operative the igniting mechanism.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: December 6, 1977
    Assignee: Avesta Jernverks Aktiebolag
    Inventors: Rune Osten Walter Fredriksson, Johan Ingvar Johansson, Erhard Rudolf Boye