Patent · US Active

Control mechanism for a power tool

US8430180B2 · kind B2 · utility

10Cited by

12References

21Claims

0Family size

Assignee

BLACK & DECKER INC. · US

Inventors

Rene Gumpert · Straubing, DE
Horst Grossman · Siegen, DE
Bruno Ruethers · Bad Camberg, DE

Key dates

Filing date	Jan 23, 2009
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Aug 11, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH01C10/14
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A speed adjustment mechanism for a power tool is disclosed. The mechanism includes a support, a first toothed gear for rotation by means of an adjustment dial, and a second toothed gear rotatable by means of the first toothed gear and connected to a potentiometer which is connected to a speed control circuit. Limited movement of the first and second toothed gears relative to each other is possible to reduce transmission of impacts from the adjustment dial to the speed control circuit.

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