Patent · US Expired

Arrangement for transporting web-shaped materials to be scanned or exposed

US5413265A · kind A · utility

6Cited by

21References

11Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Werner Stahl · Heimstetten, DE
Volkmar Voigtlaender · Eichenau, DE

Key dates

Filing date	Jan 22, 1993
Grant date	May 9, 1995
Priority date	—
Expiry date	Jan 22, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19684
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An arrangement for driving at least one roller of a roller unit for transporting web-shaped materials, such as X-ray sheet films or stimulatable phosphorous foils with substantially constant speed in a device for exposing or scanning these materials, the arrangement comprising a stepping motor having a motor output shaft, a friction drive having a drive input shaft, and a vibration damping mechanism provided between said motor output shaft and the drive input shaft. The drive is formed so that a ratio of the drive and a diameter of the roller is selected so that at least 20 steps of the stepping motor corresponds to a transporting path of the web-shaped material of one millimeter.

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