Electronically keyed dispensing systems and related methods...

Details Electronically keyed dispensing systems and related methods... Electronically keyed dispensing systems and related methods...

2009-01-23

2011-12-13

Shaver, Kevin P (Department: 3754)

Dispensing

Processes of dispensing

C222S052000, C222S063000, C222S333000, C250S221000

Reexamination Certificate

active

08074836

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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