Yakult Honsha has filed a patent for a heat-sealing device that aims to prevent issues related to cap sealing performance and the sensation of an open cap due to incorrect cap temperature. The device includes a pressing plate, heating unit, sealing heads, temperature measurement device, and control device to ensure proper sealing. GlobalData’s report on Yakult Honsha gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Heat-sealing device for preventing problems with cap sealing performance
A recently filed patent (Publication Number: US20230117653A1) describes a heat-seal device used in a manufacturing apparatus for sealing the opening portion of a container with a cap. The device includes a pressurizing plate, a seal head, and a heating portion. A temperature measuring device is also provided to measure the temperature of the seal head, and a control device transmits a control signal based on the temperature measurement to a container-conveyance drive source.
The patent also claims that the control device has several functions. It can adjust the moving speed of the container based on the temperature of the seal head, decelerating the speed when the temperature is low and accelerating it when the temperature is high. The control device can also adjust the heating time of the cap.
In addition, the heat-seal device includes a container detection sensor on the upstream side of the temperature measuring device. This allows the temperature measuring device to start measuring the temperature of the seal head after a certain time has elapsed since the container is detected. At the start of the sealing process, the control signal is transmitted to the container-conveyance drive source, and the moving speed of the container is adjusted accordingly.
The seal head of the device has an elastic material at the portion that comes into contact with the container mouth. The temperature measuring device measures the temperature of this elastic material.
The seal head is disposed circumferentially on the pressurizing plate, and the container moves in accordance with the rotation of the pressurizing plate.
The heating of the cap in this heat-seal device is carried out using induction heating.
The patent also describes a heat-seal method using this heat-seal device. The method involves measuring the temperature of the seal head using a temperature measuring device, transmitting a control signal to the container-conveyance drive source based on the temperature measurement, and determining the heating time of the cap based on the temperature of the seal head.
In summary, this patent describes a heat-seal device and method that includes a pressurizing plate, a seal head, a heating portion, a temperature measuring device, and a control device. The device and method allow for the adjustment of the moving speed of the container and the heating time of the cap based on the temperature of the seal head. The device also includes a container detection sensor and uses induction heating for sealing the cap.
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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.
