Patent · US Expired

Device for testing properties of coins

US4715223A · kind A · utility

14Cited by

3References

7Claims

0Family size

Assignee

Kienzle Apparate GmbH · DE

Inventors

Bernhard Kaiser · Bonndorf, DE
Ortwin Wokoeck · Villingen-Schwenningen, DE

Key dates

Filing date	Mar 26, 1985
Grant date	Dec 29, 1987
Priority date	—
Expiry date	Mar 26, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG07D5/08
WIPO fieldControl
WIPO sectorInstruments

Abstract

A device for testing the magnetic properties of coins in coin operated apparatus such as parking meters, used in conjunction with a coin diameter testing device. The device includes a double arm rocker lever provided on a side wall of a coin guiding duct. A first arm of the rocker lever is equipped with a permanent magnet and the latter extends through an opening of the side wall into the range of a coin which has been inserted into the coin guiding duct and which temporarily rests on a coil support. A second arm of the rocker lever includes a locking bracket which can be controlled so as to be in and out of engagement with a testing segment required for the test for determining the diameter of coins.

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