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:
Mar. 13, 1979
Filed:
Aug. 04, 1977
Elmar Reinwald, Dusseldorf-Holthausen, DE;
Milan J Schwuger, Haan, DE;
Heinz Smolka, Langenfeld, DE;
Peter Krings, Krefeld, DE;
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf-Holthausen, DE;
Abstract
The machine washing of solid material (e.g. dishes and clothes) in hard water areas is enhanced when the washing solution has a dissolved content of a sequestering agent for calcium ions and is contacted with an insoluble cation exchange resin in particulate state, the washing solution being passed through a filter containing the resin during the course of the washing operation. The filter is maintained separate and spaced from the washing area. The cation exchange resin may be contained in a filter of the whirlpool type, so that the particles are maintained in aqueous suspension without coming into contact with the materials being washed, or it may be contained as a unitary porous lining of a filter.