The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2004
Filed:
Oct. 03, 2000
Godwin Dirk Zwanenburg, Hoogeveen, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a device for regenerating an ion exchange cartridge. In household appliances with an electric heating element for heating water, such as irons, coffee makers, and electric water kettles, deposition of scale is prevented by using an ion exchange cartridge ( ) comprising a resin ( ) which binds alkaline earth metal ions such as Ca and Mg , but also negative ions such as SO and CO ions. The device is a simple tool in which the cartridge can be inserted for regeneration. The device comprises a reservoir ( ) with an outlet ( ) to which an inlet ( ) of the cartridge can be coupled. By filling the reservoir with a brine, for example 1 l of water with 10% by weight of NaCl, said brine will flow through the cartridge replacing the alkaline earth metal ions, carbonate ions, and sulfate ions in the resin with the alkali metal ions (Na ) and the chloride ions (Cl ) of the brine. The brine can be easily drained into a sink.