The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2019
Filed:
Dec. 14, 2015
Re-fer Ag, Wollerau, CH;
Eidgenössische Materialprüfungs-und Forschungsanstalt Empa, Dübendorf, CH;
Masoud Motavalli, Rüschlikon, CH;
Benedikt Weber, Schaffhausen, CH;
Wookijn Lee, Cheonan-si, KR;
Rolf Broennimann, Wiesendangen, CH;
Christoph Czaderski, Gossau, CH;
Christian Leinenbach, Fehraltdorf, CH;
Julien Michels, Zürich, CH;
Moslem Shahverdi, Dübendorf, CH;
RE-FER AG, Wollerau, CH;
EIDGENOESSISCHE MATERIALPRUEFUNGS-UND FORSCHUNGSANSTALT EMPA, Dübendorf, CH;
Abstract
The method includes a tension element, for example in the form of flat steel, that is placed on the structure or structural part and can be guided around a corner. The flat steel can also wrap as a band around the structure, in which the two ends of the flat steel are either connected to one another or are separately connected to the structure by the end anchors or intersect to produce a clamping connection. The flat steel contracts as a result of a subsequent active and controlled input of heat using a heating element and generates a permanent tensile stress and, correspondingly, a permanent prestress on the structure. The structure, as equipped, has at least one tension element as a shape memory alloy which extends along the outer side of the structure and is connected by one or more end anchors.