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. 17, 2012
Filed:
Jun. 12, 2008
Applicant:
Angelo Chiapuzzi, Milan, IT;
Inventor:
Angelo Chiapuzzi, Milan, IT;
Assignee:
Atlas COPCO BLM S.r.l., Paderno Dugnano, Milan, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B25B 23/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A measuring apparatus () comprises a transducer () for measuring preload and torque of a screw. The transducer in turn comprises a first and second sensor element formed by two axially spaced annular zones () of a hollow body () which are provided with respective load-cell sensors (). The two zones are separated by an annular zone () of the hollow body with a wall with a greater thickness and in which internally there is provided a non-rotating coupling seat () with the threaded-hole element () in a part of which the screw is tightened.