Norsk Hydro has been granted a patent for a method and machine for cleaning rollers used in metal strip processing. The method involves using specific washing liquids and rinsing the roller surface with water. The innovation aims to improve the efficiency of the cleaning process in industrial settings. GlobalData’s report on Norsk Hydro gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Norsk Hydro, Cancer treatment biomarkers was a key innovation area identified from patents. Norsk Hydro's grant share as of May 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Method for cleaning rollers used in metal strip processing
A recently granted patent (Publication Number: US11945008B2) discloses a method for cleaning rolls used in metal strip processing. The method involves first cleaning the roll surface with a first alkaline washing liquid containing an aqueous alkali metal hydroxide or an alkaline earth metal hydroxide, followed by a second cleaning with at least one second alkaline washing liquid with a lower concentration of hydroxide ions. The roll surface is then rinsed with water after both cleaning steps. Additionally, the method includes using degreasing agents in the cleaning process to ensure effective removal of contaminants.
Furthermore, the patent outlines a detailed cleaning process that involves successive steps, including rinsing with demineralized water and cleaning with a fourth washing liquid containing specific components. The concentration of alkali metal hydroxide or alkaline earth metal hydroxide in the washing liquids is carefully controlled to optimize the cleaning efficiency. The method also specifies the use of specific devices, such as nozzles and scoop rollers, for applying the washing liquids onto the roll surface, ensuring thorough cleaning without allowing the roll to run dry. Additionally, aids for removing excess washing liquids and drying the roll surface are incorporated into the cleaning device for a comprehensive cleaning process.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
