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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.:

US 11759935 B1

PDFFull Text
Date of Patent:
Sep. 19, 2023

Filed:

Jan. 26, 2021

Percussion tool

Applicant:

Milwaukee Electric Tool Corporation, Brookfield, WI (US);

Inventors:

Matthew S. Zawisza, Waukesha, WI (US);

Andrew D. Van Hoorn, Menomonee Falls, WI (US);

Ethan T. Zimany, Kenosha, WI (US);

Assignee:

MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US);

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

Robert F Long

Int. Cl.
CPC ...
B25F 5/00 (2006.01); B25D 11/06 (2006.01); B25D 11/00 (2006.01); B25D 17/26 (2006.01); B25D 17/24 (2006.01); B25D 17/04 (2006.01); B25D 11/12 (2006.01); B25F 5/02 (2006.01); H01M 50/247 (2021.01); B25D 17/06 (2006.01); H02K 7/14 (2006.01); H02P 29/00 (2016.01);
U.S. Cl.
CPC ...
B25D 11/064 (2013.01); B25D 11/005 (2013.01); B25D 11/125 (2013.01); B25D 17/04 (2013.01); B25D 17/06 (2013.01); B25D 17/24 (2013.01); B25D 17/26 (2013.01); B25F 5/00 (2013.01); B25F 5/02 (2013.01); H01M 50/247 (2021.01); H02K 7/145 (2013.01); H02P 29/00 (2013.01); B25D 2250/095 (2013.01); B25D 2250/121 (2013.01); B25D 2250/175 (2013.01); B25D 2250/201 (2013.01); B25D 2250/221 (2013.01); B25D 2250/391 (2013.01); H01M 2220/30 (2013.01);
Abstract

A percussion tool comprises a housing and an electric motor positioned within the housing. The percussion tool further comprises a battery pack supported by the housing for providing power to the motor. The battery pack includes a plurality of battery cells having a nominal voltage of up to 120 Volts. The percussion tool further comprises a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing. The percussion tool has a ratio of impact energy to mass that is greater than or equal to 2.5 Joules/kilogram.

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