Patents Assigned to Engineering Certifiers Ltd.
  • Patent number: 5899043
    Abstract: The invention relates to a ductile-failure anchor (2, 32) for concrete elements (3, 39) used in construction. Each anchor (2, 32) includes a plug (4, 34) attached to a securing element (5, 5a or 55) and secured within each concrete element (3, 39). The securing element may included folded bars or a strap 5a. The securing element (5, 55) is placed about the plug (4, 34) and either secured in place (a first option) or held in position about the plug (4, 34) by supports 38 (second option). Each securing element (5, 55) includes at least two regions (10), each region (10) being of a pre-determined length and cross-sectional area. When the anchor (2, 32) is overloaded each region (10) fails in a ductile manner before the burst strength of any part of the concrete element (3, 39) is reached.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: May 4, 1999
    Assignee: Engineering Certifiers Ltd.
    Inventor: Alan Michael Reay