Patent · US Expired

Indicating device

US5734210A · kind A · utility

9Cited by

13References

14Claims

0Family size

Assignee

VDO Adolf Schindling AG · DE

Inventor

Markus Keutz · Roßdorf, DE

Key dates

Filing date	Oct 20, 1995
Grant date	Mar 31, 1998
Priority date	—
Expiry date	Oct 20, 2015

Classification

Technology area (CPC G)Physics
CPC primaryG01D11/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In an indicating device having a stepping-motor drive, an indicating element can be driven by a gear wheel which is in engagement with a worm which is connected with a stepping motor by a worm shaft. The stepping motor is preferably formed of two stators, and of two permanent-magnet rotors which are arranged, fixed for rotation, on the two ends of the worm shaft. The rotors are arranged with half a pole spacing apart, preferably 90.degree..

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