Check-actuated control mechanisms – Control mechanism actuated by check – other than coin – which... – By pliant currency
Patent
1998-03-02
1999-06-15
Bartuska, F. J.
Check-actuated control mechanisms
Control mechanism actuated by check, other than coin , which...
By pliant currency
G07F 704
Patent
active
059112980
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Field of the Invention
This invention relates to a testing device for use in processing machines of the type useful for processing documents and, more particularly, apparatus for checking the authenticity of test objects such as paper money, bank notes and the like.
Hitherto, position-related tests have been carried out by means of various pressure devices. For example, a device for feeding tickets and magnetic cards into a magnetic card reader is described in German laid-open patent specification 41 22 916. Rollers and pressure springs are utilized for guidance in a defined manner. Similar guides, in particular contacting and measuring rollers journaled to be freely rotatable, are used in accordance with German laid-open patent specification 40 16 961 disclosing a method of measuring and a device for determining the electrical surface resistance of metallic strips.
The known pressure devices are subject to wear and tear and they contribute to the deterioration of the test objects. German laid-open patent specification 35 13 635 describes a device for receiving, testing and storing monetary notes, whereby positional or alignment testing is performed by means of a gap in a roller, thus leading to similar disadvantages as described above. German patent 40 37 333 describes an adapter for contacting passive structural components with a measuring and testing device utilizing fixed and movable contact elements and pneumatically movable contact pins. This manner of positioning test objects is very complex and may be applied to but few processing machines. U.K. patent application 2 016 141 describes a system for detecting the presence of a test object within a defined range. Since distance is to be measured, pressure means are not to be used.
The pressure means used in testing devices for authenticity checks serve to render these devices functionally reliable. The known pressure devices are subject to wear and tear and contribute to additional deterioration of the test objects.
OBJECTS OF THE INVENTION
It is the object of the invention so to construct a device in processing machines for the detection of security indicia on objects to be checked that pressure devices hitherto required for guiding test objects at a defined spacing relative to, and/or in contact with, the testing device need no longer be provided, and to connect the device to the testing electronics in a compact manner so as to ensure simple handling.
BRIEF SUMMARY OF THE INVENTION
In accordance with the invention, a compact device for the detection of security indicia on objects to be checked is provided with the following components: a sensor support for receiving different and exchangeable sensors, brackets and fixtures for assembly into existing and/or new processing machines, a board containing the evaluation circuit and contacts for connection with the sensors, as well as, depending on intended use and type of objects to be checked, an exchangeable cover. Because of the combination of a plurality of individual components, the exchangeability in accordance with the invention of many different kinds of sensors, the versatility of possible applications and the handling of sensors and evaluation electronic circuitry in one compact component, the device in accordance with to the invention may justly be called a multi-compact sensor.
During operation, an object to be checked is fed to the multi-compact sensor by means of conveyor devices in a predetermined disposition and at a defined velocity. Impermissible deviations are detected by sensors and result in an interruption of the normal operation. As is known, the test objects are moved in processing machinery by transport rollers, for instance. Whenever a test object encounters an obstacle, for example an ascending plane, the banknote is pressed against the obstacle. Rather than by any kind of pressure elements this force is generated by the motion as such of the banknote. It is for this reason that in accordance with the invention the test sensor system is arranged
REFERENCES:
patent: 4120389 (1978-10-01), Erickson
patent: 4734869 (1988-03-01), Mickowski
patent: 4881268 (1989-11-01), Uchida et al.
patent: 4986410 (1991-01-01), Shields
patent: 5286017 (1994-02-01), Hawk et al.
Puttkammer Frank
Wolf Torsten
Bartuska F. J.
Hormann Karl
Jaketic Bryan J.
WHD Elektronische Prueftechnik GmbH.
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