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Inexpensive Coin Box with Box Full and Box Present Sensing

IP.com Disclosure Number: IPCOM000208411D
Publication Date: 2011-Jul-07
Document File: 3 page(s) / 76K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a design for a coin receptacle, or box, used in a self-service retail machine, which uses simple contacts to detect both the presence of the box and whether or not the box is full.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 66% of the total text.

Page 01 of 3

Inexpensive Coin Box with Box Full and Box Present Sensing

For most self-service retail equipment that accepts cash, there must be a receptacle for coins that are collected and will not be returned to the shopper. In an unattended or infrequently attended installation, there needs to be a means for detecting when this receptacle, or coin box, is full so that the collection of coins does not continue. Furthermore, there needs to be means for detection of the presence of the box. If the box has been removed to be emptied, the machine should not operate until the box has been replaced.

The existing art uses magnetic, mechanical, and optical sensors and switches to perform these functions. More often than not, this sensing hardware is part of the box, which increases the cost of the box and makes it more likely to fail.

This invention uses simple contacts to detect both the presence of the box and whether or not the box is full. There are no moving parts in the box. The box design is a more cost effective and more reliable solution.

Figure 1 illustrates a coin box with three contacts. Either the box is constructed from a non-conductive material, or the contacts are electrically isolated from the box with insulating washers.

Figure 1: Coin box with three contacts 1A

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1B

1


Page 02 of 3

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The center contact is the "common". The lower contact, which is permane...