Patents by Inventor Alf Leif Bloch

Alf Leif Bloch 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: 4098161
    Abstract: A method and apparatus are disclosed to perform a pair of fabricating operations in sequence on a single workpiece. The apparatus includes an anvil interposed between a pair of spaced, aligned confronting fabricating tools, such as punches or welders. In the apparatus, power means and a force equalization system are mounted on one side of the anvil, so that one of the fabricating tools is essentially at one end of the apparatus. In the method, a workpiece having two generally parallel sections is placed over the anvil such that each workpiece section is interposed between one face of the anvil and a corresponding tool. Then, each workpiece section is subjected in sequence to a fabricating operation, by first displacing one fabricating tool and the anvil toward each other and then displacing the other fabricating tool and the anvil toward each other.
    Type: Grant
    Filed: June 28, 1977
    Date of Patent: July 4, 1978
    Assignee: Wes Industries, Inc.
    Inventor: Alf Leif Bloch