US 12,589,479 B2Granted

Portable tool for mobile use

AssigneeLUKAS Hydraulik GmbH

InventorsThomas Littwin, Michael Pieper

Life of this patent

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Abstract

A portable tool for mobile use includes a housing, an electric motor located in the housing, an insert shaft on the tool, and a battery. The battery or a terminal for connecting to an external energy source is located in the insert shaft. A mechanically or hydraulically driven movable piston rod is for performing spreading, cutting, lifting, and/or pressing. An electronic device controls and/or regulates the electric motor and includes a printed circuit board with a potting compound on which electronic components are arranged. An electrically conductive on the insert shaft allows a releasable electric contact between the battery and the electronic device of the tool by inserting the battery into the insert shaft. The contact is divided into a first and second surface regions. The first surface region is covered with a nonconductive protective layer, and the second surface region is free of the protective layer.

Claims7

Dependent claims

A battery for use in a portable tool, such as a spreading tool, cutting tool, or combination tool with cutting and spreading functions, comprising

a waterproof battery housing,
battery cells arranged within the waterproof battery housing,
a terminal region for an electrical connection of the battery to a terminal shaft or insert shaft of the portable tool,
wherein the terminal region has at least one contacting chamber which is accommodated in the waterproof battery housing and is accessible from the outside via a slot-like passage opening and is protected against ingress of water, and in which the at least one
contacting chamber has at least one contact element located therein in a form of a contact clip,
wherein the at least one contacting chamber is filled with a gel-like compound, and wherein in the at least one contacting chamber, in a region of the slot-like passage opening, a resilient closure device is provided which deforms when inserting a contact through the slot-like passage opening.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/957,193Filed 22 Nov 2024 · continuation
Published: US 2025/0083295 A113 Mar 2025
Granted: 31 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B25F 5/02
Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for:…
A62B 3/005
Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for…:…
H01M 50/213
Characterised by their shape: adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/24
Characterised by physical properties of casings or racks, e.g. dimensions: adapted for protecting batteries from their environment, e.g. from…

Family

PCT/EP2019/074265Parent of this continuation · filed 11 Sep 2019
US 2025/0083295 A1Pre-grant publication · published 13 Mar 2025
Application17/642,631Parent of this continuation
US 12,172,289 B2Parent of this continuation
US 2022/0339773 A1Published application
US 12,589,479 B2This patent

From the US filing history. Foreign family members aren’t listed.