Salzgitter has been granted a patent for a method involving filling and closing containers at a handling station. The process includes pre-loading the process chamber with nitrogen after filling to a pressure above the saturation pressure of CO2 in the filling material. This innovative method ensures efficient and safe container filling and closing operations. GlobalData’s report on Salzgitter 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 Salzgitter, Battery metal recycling was a key innovation area identified from patents. Salzgitter's grant share as of May 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.
Method for filling and closing containers with nitrogen pressurization
A recently granted patent (Publication Number: US11999605B2) discloses a method for filling and closing containers at a handling station. The method involves connecting the container mouth to a process chamber, evacuating the container, flushing it with steam and/or flushing gas, filling it with liquid material, pressurizing the chamber with nitrogen, closing the container under pressure, and finally releasing the pressure-tight connection. The process includes multiple phases such as evacuation, flushing, filling, and handling, all controlled by pressure sensors and actuators integrated into a control loop.
Furthermore, the method includes specific details such as evacuating the container to a negative pressure range, pressurizing the chamber with nitrogen or a mixture of nitrogen and air, and alternating between evacuation and flushing phases. The integration of pressure sensors and actuators in the control loop allows for precise control of the process based on actual pressure values detected inside the process chamber. Additionally, temperature sensors are utilized to account for temperature variations during the process, ensuring efficient and accurate container filling and closing operations.
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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.
