Patent · US Expired

Electrical hand tool device

US6872121B2 · kind B2 · utility

133Cited by

8References

18Claims

0Family size

Assignee

Metabowerke GmbH · DE

Inventors

Bernd Wiesner · Owen, DE
Stefan Schwarz · Buxtehude, DE
Reinhard Plietsch · Brechen, DE
Marco Gaertner · Mottgers, DE
Patrick Neika · Owen, DE

Key dates

Filing date	Jul 31, 2003
Grant date	Mar 29, 2005
Priority date	—
Expiry date	Jul 31, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25F5/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An electrical hand tool device (2) comprises a control electronics (8) and a transmitter and receiver (10) which is responsive in a wireless and contact-free fashion, and with a storage medium (12) in which an authorization code is stored, wherein an operation locking state and an operation release state can be differentiated, and with an external transmitter and receiver means (16) which is accommodated in a separate portable device (4), wherein communication with the transmitter and receiver means (10) of the electrical hand tool device can be produced in a defined fashion through actuation of the external transmitter and receiver means (16) to change the operation state, and communication is provided only to change the operation state and optionally to change the authorization code.

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