Patents by Inventor Guenther Woehler

Guenther Woehler 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).

  • Mortar-anchored system
    Patent number: 4989389
    Abstract: A mortar-anchored system for fastening to supports and lightweight building blocks, perforated bricks or masonry made of aerated concrete. The mortar-anchored system includes a bush segment for engaging the side walls of a wall bore hole in the building material and having a hollow center for insertion of mortar. A fastening screw is then inserted through the opening in the bush segment into the wall bore hole and is then anchored when the mortar dries.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: February 5, 1991
    Assignee: 501 Maechtle GmbH
    Inventors: Irmgard Maechtle, Guenther Woehler, Joachim Mayer