Patent · US Expired

Holder for a drive piston of a setting tool

US6978919B2 · kind B2 · utility

1Cited by

11References

6Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Stefan Bonig · Lindau (Bodensee), DE
Franz Buchel · Ruggell, LI
Markus Frommelt · Colmar, FR
Thomas Sperrfechter · Zizers, CH
Norbert Heeb · Buchs, CH
Jens Timo Neumann · Shanghai, CN

Key dates

Filing date	Jan 29, 2002
Grant date	Dec 27, 2005
Priority date	—
Expiry date	Jan 29, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25C1/14
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A piston holder for a drive piston (8) of a setting tool and having a circumferential adjusting surface (16) inclined toward a central axis (17) thereof so that a diameter of the adjusting surface (16) increase toward a rear, with respect to a setting direction (18) of the setting tool, end of the drive piston (8), with the piston holder including contact elements (22; 24; 36; 38; 40; 41, 52; 53; 58–61) engageable with the adjusting surface (16), and a spring (21; 27; 35; 36; 54; 55; 62) for biasing the contact elements into engagement with the adjusting surface (16).

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