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. 31, 2023
Filed:
Oct. 09, 2020
Black & Decker Inc., New Britain, CT (US);
Christopher W. Shook, Bel Air, MD (US);
John D. Cox, Lutherville, MD (US);
Barak N. Gohn, Shrewsbury, PA (US);
Jason K. Leh, Shrewsbury, PA (US);
Wing W. Lin, Bel Air, MD (US);
Jason D. McKillican, Baltimore, MD (US);
Marcell E. Coates, Baltimore, MD (US);
Black & Decker Inc., New Britain, CT (US);
Abstract
A system is provided with a set of removable battery packs and a set of power tools each including a motor, a controller, and a battery receiving portion. For each power tool, the controller is configured to identify a type of battery pack coupled to the battery receiving portion and limit a maximum amount of electric current drawn from the battery pack by the motor based on the identified type of the battery pack. The greater a ratio of an impedance of the motor to an impedance of the battery pack, the less the controller limits the maximum amount of electric current drawn from the battery pack such that for a given battery pack of the set of removable battery packs, the lower the impedance of the motor, the more current the motor draws from the given battery pack.