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:
May. 05, 2015
Filed:
Oct. 02, 2012
Zuher Naim Khalaf, Troy, MI (US);
William Lloyd Naumann, Munson, OH (US);
Zuher Naim Khalaf, Troy, MI (US);
William Lloyd Naumann, Munson, OH (US);
Stanley Black & Decker, Inc., New Britain, CT (US);
Abstract
A torque applying system includes a torque applying tool having a motor and rotating output spindle, a torque sensor that measures an instantaneous torque exerted by the output spindle during a fastening cycle, and a controller operatively connected to the tool to control the tool's rotational speed during the fastening cycle. The controller is programmed to control the tool's rotational speed to be [(τ−τ)/t]/r, wherein t is a time constant of speed control, τis a target final torque for the fastening cycle, and r is a torque rate.