Patent · US Active

Method for preventing marks caused by drying and a vehicle washing system

US10800675B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

WASHTECH HOLDING GmbH · DE

Inventors

Andreas Sattler · Trostberg, DE
Stefan Mayer · Glückstadt, DE
Robert Auer · Stadtbergen, DE

Key dates

Filing date	Jul 15, 2016
Grant date	Oct 13, 2020
Priority date	—
Expiry date	Dec 9, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2103/44
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for cleaning vehicles by means of which the formation of marks caused by drying is prevented. The method comprises a rinsing step using water. In the method, the anions forming poorly soluble salts with alkaline earth metals dissolved in water are removed from the water, while cations causing the water hardness are retained. Furthermore, a vehicle washing system includes: at least one application device for applying rinsing fluid to a vehicle to be cleaned; and an ion-exchange device for removing anions from the rinsing fluid prior to the application to the vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.