Patents Represented by Law Firm Laughlin and Markensohn
  • Tool extractor
    Patent number: 4548279
    Abstract: A demolition tool is provided with an extractor for removing the chisel or drill from the working surface. The extractor is a piston equipped with a foot which maintains contact with the work surface. When the tool is to be extracted the piston is actuated to press down on the working surface causing the chisel or drill to be forced upward.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: October 22, 1985
    Inventor: Wenzel Zaruba