Electronically keyed dispensing systems and related methods utilizing near field frequency response
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United States of America Patent
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-
Jul 22, 2014
Grant Date -
May 21, 2009
app pub date -
Jan 23, 2009
filing date -
Dec 15, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A dispensing system is disclosed which utilizes an electronically powered key device and/or identification code associated with a refill container to preclude the need for mechanical keys. The system utilizes a near field frequency response to determine whether a refill container is compatible with a dispensing system. In particular, the refill container is provided with a coil terminated by one of a number of capacitors. The container is received in a housing that provides a pair of coils that are in a spatial relationship with the installed refill container's coil. By energizing one of the housing's coils, the other coil detects a unique electronic signature generated by the container's coil. If the signature is acceptable, the dispensing system is allowed to dispense a quantity of material. The system also provides a unique latching mechanism to retain the container and ensure positioning of all the coils.
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Cited Art Landscape
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