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Keyed dispensing cartridge with valve insert

  • US 9,730,557 B2
  • Filed: 03/20/2015
  • Issued: 08/15/2017
  • Est. Priority Date: 05/16/2007
  • Status: Active Grant
First Claim
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1. A dispensing system for dispensing cleaning product for hand sanitization comprising:

  • a cartridge having an internal reservoir for containing hand sanitization product, and a pump assembly, including a nozzle having a tip through which product exits and configured in one of a plurality of key shapes;

    a dispenser having a block with a receptacle opening adapted to axially receive and engage the nozzle of the cartridge when the receptacle opening is configured in one of a plurality of matching key shapes corresponding to the key shape of the nozzle, the dispenser having a fluid communication passage for dispensing fluid for hand sanitization; and

    a normally closed valve member in the block which prevents fluid from discharge, but which opens to permit fluid discharge when the nozzle has a matching key shape to the block and wherein the nozzle is fully axially received in the block, wherein the valve member comprises a main body formed in the shape of a cup and an extension piece extending radially from the cup along a fraction of the circumference of the cup, whereby only cartridges and dispensers which have matched key shapes will engage each other for operative discharge of the hand sanitization product, and open the valve member.

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