Patents by Inventor Dewey D. Alexander

Dewey D. Alexander 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).

  • Gripping pry tools for dislodging concrete forms and the like
    Patent number: 4102527
    Abstract: A handtool is disclosed particularly adapted to engage concrete forms for prying the same loose from the concrete after setting. The tool includes a gripping mechanism carried on a tool frame, the gripper mechanism enabling the lip portion of the concrete form to be gripped or clamped during the prying operations to maintain the engagement of the tool with the concrete form. The tool frame includes a support member for the gripper mechanism extending transversely to the tool handle which provides leverage for prying the form while it is engaged with the gripper mechanism. The gripper mechanism consists of a self-engaging cam clamp element pivotally supported and spring-biased to the engaging position with a release handle provided for releasing the grip from the form.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: July 25, 1978
    Inventor: Dewey D. Alexander