Patent · US Active

Hand-held power tool

US12220800B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Markus Forstner · Landsberg, DE
Georg Braml · Landsberg, DE
Stefan Ringler · Schwabmühlhausen, DE

Key dates

Filing date	Nov 9, 2021
Grant date	Feb 11, 2025
Priority date	—
Expiry date	Feb 7, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2250/255
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A hand-held power tool, including: a drive circuit for providing an adjustment signal as a function of actuation of a button, a control apparatus for adjusting a drive current for an electric motor of the hand-held power tool as a function of the adjustment signal, wherein the control apparatus is connected to an electrical energy source for operating the hand-held power tool via a first electrical line arrangement, the drive circuit is connected to the control apparatus via a second electrical line arrangement, a drive current line carrying the drive current for the electric motor is routed via an interruption switch, coupled to the button, for interrupting the drive current, and wherein an interference-suppression capacitor is connected to the drive power line via a first node and to the second electrical line arrangement via a second node.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.