Patents Assigned to 501 Maechtle GmbH
  • 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