MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202647077152 A) filed by Tetra Laval Holdings & Finance S. A. on June 22, 2026, for A Method For Monitoring A Web Handling Arrangement.
Inventors include Lahrache, Achraf; Marsella, Angelo; Melandri, Marco; and Bassissi, Fabio Number.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: A method (300) for monitoring a web handling arrangement (100) holding a web (102) of packaging material, said web handling arrangement (100) comprising a first roller (104) and a second roller (108), wherein the first and second roller (104, 108) are placed at a distance (D) from each other such that a web slack (112) is formed, wherein a first motor (106) is positioned upstream or in the first roller (104) and a second motor (110) is positioned downstream or in the second roller (110), wherein a first sensor (114), for detecting a mark (116) on the web (102), is positioned between the first motor (106) and the first roller (104) and a second sensor (118), for detecting the mark (116), is positioned between the second roller (108) and the second motor (110), said method comprising receiving (302) first speed data (120) from the first motor (106); receiving (304) second speed data (122) from the second motor (110); receiving (306) initial web slack data (126) representing an initial web slack (WS-I) at the first point of time; determining (308) a non-compensated length of the web slack (112) at a second point of time based on the first and second speed data (120, 122) for a time period spanning from a first point of time to the second point of time and the initial web slack data (126); receiving (310) first registration data (128) from the first sensor (114), said first registration data (128) pertaining to a detection of the mark (116) at the first point of time; receiving (312) second registration data (130) from the second sensor (118), said second registration data (130) pertaining to a detection of the mark (116) at a third point of time; and determining (314) a compensated length of the web slack (112) at the third point of time based on the non-compensated length and a time difference between the second and third point of time.
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