Patent · US Expired

Explosion-operated power tool

US7086574B2 · kind B2 · utility

2Cited by

14References

22Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Tilo Dittrich · Feldkirch, AT
Gerhard Ehmig · Rankweil, AT
Thomas Sperrfechter · Zizers, CH

Key dates

Filing date	Dec 16, 2003
Grant date	Aug 8, 2006
Priority date	—
Expiry date	Dec 16, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25C1/186
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An explosion-operated power tool including a housing (1) having a cylindrical cavity (5) and a piston chamber (2) for receiving a drive piston (3) and communicating with the cavity (5), a breech bottom (8) located opposite the cavity (5) and fixedly secured at a predetermined distance from the housing (1), and a sealing sleeve (12) located in the cavity (5) of the housing (1) and displaceable axially away from the breech bottom (8) and toward the breech bottom (8) for enabling, respectively, a sidewise feeding of a catridge (10) for positioning the catridge between the breech bottom and the sealing sleeve (12) and for securing the catridge between the breech bottom (8) and the sealing sleeve (12).

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