Patent · US Active

Electric switch

US8456113B2 · kind B2 · utility

4Cited by

7References

9Claims

0Family size

Assignee

MARQUARDT GMBH · DE

Inventors

Christof Lexer · Jestetten, DE
Jens Müller · Regensburg, DE
Andreas Seidel · Dormagen, DE
Norbert Papok · Tengen, DE
Michael Tröndle · Waldshut-Tiengen, DE

Key dates

Filing date	Aug 30, 2011
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Aug 30, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2300/002
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric switch for an electric tool with an electric motor. The switch has first electrical terminals for electrical connection to a voltage supply and second electrical terminals for electrical connection to the electric motor. The switch has an actuating mechanism which can be adjusted between an initial position and a final position, wherein the electric motor is switched off when the actuating mechanism is located in the initial position and is switched on when the actuating mechanism is not located in the initial position. The switch also has a braking circuit for braking the electric motor, the braking circuit operating when the actuating mechanism is reset to the initial position. The switch also has a reversal circuit for switching over the direction of rotation of the electric motor. The braking circuit is arranged between the second electrical terminals and the reversal circuit.

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