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:
Jan. 12, 2016
Filed:
Feb. 27, 2012
Applicants:
Peer Schmidt, Lindau, DE;
Joerg Appl, Buchs, CH;
Serhey Khandozhko, Buchs, CH;
Inventors:
Assignee:
HILTI AKTIENGESELLSCHAFT, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 21/02 (2006.01); B25B 23/151 (2006.01); B25B 31/00 (2006.01); B25B 23/147 (2006.01);
U.S. Cl.
CPC ...
B25B 31/00 (2013.01); B25B 21/02 (2013.01); B25B 23/1475 (2013.01);
Abstract
An installation method for an expansion anchor is carried out by repeatedly exerting rotary-percussive strikes onto the shank () of the expansion anchor () by an impact screwdriver. The repeat rate (N) of the rotary-percussive strikes is selected as a function of the tightening torque prescribed for expanding the expansion sleeve () of the expansion anchor (). The impact screwdriver stops generating rotary-percussive strikes when the detected mean rotational speed (d) of the shank falls below a threshold value (D).