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:
Nov. 07, 2017
Filed:
Jun. 25, 2013
Hilti Aktiengesellschaft, Schaan, LI;
Andreas Eckstein, Landsberg am Lech, DE;
Mathias Goldt, Feldkirch, AT;
Marc Schaeffer, Feldkirch-Nofels, AT;
Arjen Detmer Dijkhuis, Feldkirch, AT;
Joerg Appl, Buchs, CH;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An expansion bolt including an anchor bolt having an expansion section, and further including an expansion sleeve which surrounds the anchor bolt and which can be expanded by retracting the expansion section, and a spring element arranged on the anchor bolt. The spring element can be tensioned by inserting the anchor bolt into a bore hole and can retract the expansion section of the anchor bolt into the expansion sleeve when it is released. An indicator element indicates when a rated tension of the spring element is reached.