Patent · US Expired

Percussion drill and/or jack hammer with handle spring-buffered against the hammer housing

US6148930A · kind A · utility

49Cited by

12References

19Claims

0Family size

Assignee

Wacker-Werke GmbH & Co. KG · DE

Inventors

Rudolf Berger · Munich, DE
Thomas Maurer · Munich, DE

Key dates

Filing date	Jun 25, 1999
Grant date	Nov 21, 2000
Priority date	—
Expiry date	Jun 25, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25F5/006
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A percussion drill and/or jack hammer has a handle that is spring-buffered against the hammer housing which has at least one straight guiding track running parallel to the longitudinal axis of the hammer. The handle can be moved to a limited extent along the guiding track in relation to the hammer housing and is spring-buffered in such a way that its movement against the guiding track is limited on all sides.

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