Patent · US Expired

Mode selection switch for a combination electrical hand tool device

US6725944B2 · kind B2 · utility

22Cited by

7References

5Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Helmut Burger · Waiblingen, DE
Wolfgang Schreiber · Stuttgart, DE
Jochen Erhardt · Klosterlechfeld, DE
Peter Gerold · Weilheim, DE

Key dates

Filing date	Jun 3, 2003
Grant date	Apr 27, 2004
Priority date	—
Expiry date	Jun 3, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2250/261
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A combined electrical hand tool having an operating mode selection switch (1) with additional special functions that can be switched using a displaceable linkage (5) that can be displaced by the operating mode selection switch arranged between a lubricated assembly (2a) having a coupling (3a) and the external housing (4), wherein in at least two separate lubricant-tight assemblies (2a, 2b) at least one switchable coupling (3a, 3b) is present, which can be moved over an outwardly extending actuator (6a, 6b) that is mounted lubricant-tight.

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