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:
Mar. 17, 2017
Applicant:
Aktiebolaget Skf, Gothenburg, SE;
Inventor:
Marc Alegre, Maurepas, FR;
Assignee:
Aktiebolaget SKF, Göteborg, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23P 19/06 (2006.01); B25B 29/02 (2006.01);
U.S. Cl.
CPC ...
B23P 19/067 (2013.01); B25B 29/02 (2013.01);
Abstract
The invention concerns a rod tensioning device having a first actuator, at least a second actuator and a tubular support sleeve dedicated to radially surround a threaded rod. Each of the actuators provides a cylinder, and a piston sliding in the cylinder and forming with the cylinder an annular chamber dedicated to be supplied with pressurized fluid. According to the invention, the at least second actuator is temporary axially arranged between the first actuator and the tubular support sleeve for a temporary blockwise assembly, the pistons of two axially adjacent actuators being indexed in rotation together.