Patent · US Expired

Apparatus for fixing substrates

US6612558B1 · kind B1 · utility

1Cited by

8References

20Claims

0Family size

Assignee

Steag Hamatech AG · US

Inventors

Ludwig Denzler · Keltern, DE
Ulrich Speer · Eisingen, DE
Klaus Weber · North Canberra, AU

Key dates

Filing date	Dec 15, 2000
Grant date	Sep 2, 2003
Priority date	—
Expiry date	Dec 15, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG11B23/0035
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus for fixing and centering substrates that are each provided with an inner hole is provided. The apparatus has a housing having an axis that extends perpendicular to the plane of a substrate placed on the apparatus. A fixation unit is guided in the housing and is introducible into the inner hole of a substrate. The fixation unit includes an outer element that is moveable along the axis of the housing and relative to the housing, and also includes an inner element that is moveable along the axis of the housing and relative to the housing and to the outer element, which, by way of a relative movement of the inner and outer elements, is expandable for engagement with the inner hole of a substrate.

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