Patent ID: 6971589

Claim:
A device for delivery of a cleaning product from at least one liquid reservoir to at least one nozzle, the device comprising: a dispensing appliance for delivering a cleaning product, said dispensing appliance comprising a holder for at least one liquid reservoir, said at least one liquid reservoir being removable from said dispensing appliance, said dispensing appliance comprising a first and a second needle wherein said first needle is in fluid communication with at least a nozzle and wherein said second needle is in fluid communication with a venting valve; at least one liquid reservoir for containing said cleaning product wherein said at least one liquid reservoir respectively comprises at least one corresponding membrane having a needle-pierceable region, such that said at least one pierceable membrane region recloses when said at least one liquid reservoir is removed from said dispensing appliance and such that a leak-tight fluid communication between said dispensing appliance and said at least one reservoir is established when said first and second needles pierce said pierceable membrane region and wherein said membrane comprises an outer layer of silicone and an inner layer of polylethylene terephthalate, said membrane having a thickness less than 6 mm.