US 12,272,226 B2
Protection system for a power tool
Stefan Mayr, Landau/Isar (DE)
Assigned to EINHELL GERMANY AG, Landau/Isar (DE)
Filed by EINHELL GERMANY AG, Landau/Isar (DE)
Filed on May 10, 2023, as Appl. No. 18/315,268.
Claims priority of application No. 20 2022 102 628.9 (DE), filed on May 13, 2022.
Prior Publication US 2023/0368638 A1, Nov. 16, 2023
Int. Cl. G08B 21/18 (2006.01); B25F 5/00 (2006.01); G08B 3/00 (2006.01)
CPC G08B 21/187 (2013.01) [B25F 5/00 (2013.01); G08B 3/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A protection system for a power tool, the protection system comprising:
a battery pack, which is connectable with the power tool for supplying an electrical load of the power tool with electric energy, as well as a hearing protection for a user of the power tool,
wherein the battery pack comprises a first control circuit, which is configured to transmit an information concerning a value of an operating parameter of the power tool directly or indirectly to a second control circuit of the hearing protection; and
wherein the hearing protection comprises an audio output device and the second control circuit is configured to control the audio output device depending on the transmitted information to generate an acoustic warning output.