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. 28, 2023
Filed:
Jul. 29, 2019
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventors:
Frederic Pol, Feldkirch, AT;
Cristian Jimenez, Sankt Gallen, CH;
Michael Ziltener, Siebnen, CH;
Roland Schneider, Schlins, AT;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 13/14 (2006.01); F16B 25/00 (2006.01);
U.S. Cl.
CPC ...
F16B 13/141 (2013.01); F16B 25/0026 (2013.01); Y10T 29/49966 (2015.01);
Abstract
A method for temporarily releasing a screw anchorage includes unscrewing and removing a primary screw having a thread that is tappingly engaged in a mating thread in an ungrouted hole in a mineral substrate from the ungrouted hole. Subsequently to the unscrewing and removing, a retrofitting screw is screwed into the hole to form an annular gap between the retrofitting screw and the mineral substrate. A hardenable grout is placed in the annular gap and the hardenable grout is hardened in the annular gap.