Patent · US Expired

Machine for etching objects

US4852595A · kind A · utility

5Cited by

1References

4Claims

0Family size

Assignee

Hans Hollmuller Maschinenbau GmbH & Co. · DE

Inventors

Dietfried Baier · Herrenberg, DE
Ivan Grasa · Gäufelden, DE
Rainer Haas · Herrenberg, DE

Key dates

Filing date	May 12, 1988
Grant date	Aug 1, 1989
Priority date	—
Expiry date	May 12, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23F1/08
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a machine for etching objects, a nozzle assembly carries out an oscillating movement transverse to the conveying direction, in which the objects to be etched are guided through the machine. The device, which produces the oscillating movement, comprises a drive motor, whereof the rotary movement is converted by means of a cam disc into the oscillating movement of the nozzle assembly. The cam disc, on whose outer contour pressure engagement members of the nozzle assembly bear against two diametrically opposed points, has the contour of a cardioid. Due to this, a particularly linear displacement-time characteristic of the oscillation movement between the reversing points is achieved, which contributes to making the etching process more uniform.

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