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US 12,703,927 B2Granted
Power tool including switch wetting
AssigneeMilwaukee Electric Tool Corporation
InventorPeter J. Wawer
Life of this patent
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Abstract
A method for removing oxidation of a contact of a trigger switch of a battery pack powered tool. The method includes receiving power from one or more battery packs coupled to the battery pack powered tool, determining, with a controller, that a trigger of the battery pack powered tool has been actuated, and providing, with a wetting circuit, power from the one or more battery packs to the contact to remove an oxidation surface film on the contact.
Claims13
A power tool comprising:
- a battery pack interface configured to receive a battery pack;
- a switch including a contact;
- a wetting circuit configured to remove an oxidation surface film on the contact of the switch;
- and
- a controller configured to:
- determine that the switch has been actuated, and
- provide power from the battery pack to the contact of the switch in response to determining that the switch has been actuated in order to remove the oxidation surface film on the contact of the switch.
4 more elements
Dependencies are inferred from the claim text.