Patent · US Expired

Installation tool for an anchor element

US4895055A · kind A · utility

3Cited by

8References

6Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Heinz Bisping · Munich, DE
Erich Leibhard · Munich, DE
Peter Mauthe · Türkheim, DE

Key dates

Filing date	Apr 28, 1988
Grant date	Jan 23, 1990
Priority date	—
Expiry date	Apr 28, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D17/005
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An installation tool for placing anchor elements includes an axially extending member and a ball with a thread on the member for engagement with the anchor element to be installed. The ball is captured in a receiving space in the installation tool and serves as a stop for limiting the threaded engagement of the tool with the anchor element. The ball has only a punctiform contact with the element, accordingly, the frictional engagement between the ball and the element developed while an anchor element is being screwed in is very small, so that the installation tool can be unscrewed easily from the anchor element after the element is installed.

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