Patent · US Active

Screw and method to identify the screw

US8784023B2 · kind B2 · utility

2Cited by

9References

7Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Jochen Kuntner · Dornbirn, AT
Peer Schmidt · Gettorf, DE

Key dates

Filing date	Jun 20, 2011
Grant date	Jul 22, 2014
Priority date	—
Expiry date	Jun 10, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01L5/24
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A screw has a head whose underside has impressions or embossings and faces towards the tip. The underside is divided into at least five sectors of the same size. Three-fifths of the sectors exhibit an identical pattern of impressions or embossings and at least one sector is provided with a different pattern of impressions or embossings or else with no impressions or embossings.

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