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Keyed dispensing cartridge with valve insert

  • US 10,251,518 B2
  • Filed: 07/19/2017
  • Issued: 04/09/2019
  • Est. Priority Date: 03/20/2014
  • Status: Active Grant
First Claim
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1. A valve insert member for use in a cleaning product dispenser which dispenses a cleaning product, comprising:

  • a cup shaped member of elastomeric material, said member having a curved top having at least one slit having two slit edges, said slit defining a valve which is normally closed when the two slit edges are in mutual contact, but which slit edges separate when the curved top is penetrated, to thereby open the valve; and

    an extension piece extending radially from the cup shaped member along a fraction of the circumference of the cup shaped member,the cup shaped member sized to seat within an index block of the cleaning product dispenser, the index block further including a receptacle opening having one or more key slots to axially receive and engage a nozzle of a cleaning product cartridge having one or more key shapes corresponding to the key slots in the index block, such that the curved top of the valve is penetrated by the nozzle of the cleaning product cartridge to open the valve and permit dispensation of the cleaning product through the nozzle.

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