Toto‘s patent describes a flush water tank apparatus featuring a reservoir tank, a discharge valve, and a hydraulic drive system. The system utilizes water pressure to operate the discharge valve and includes a discharge/vacuum break valve to manage water flow and prevent backflow when water supply is halted. GlobalData’s report on Toto 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 Toto, Reformer integrated fuel cells was a key innovation area identified from patents. Toto's grant share as of June 2024 was 38%. Grant share is based on the ratio of number of grants to total number of patents.
Flush water tank apparatus for toilet water supply
The granted patent US12037779B2 describes a flush water tank apparatus designed to efficiently supply flush water to a toilet. The apparatus includes a reservoir tank for storing flush water, a discharge port for delivering this water to the toilet, and a discharge valve that regulates the flow of water. The discharge valve is operated by a hydraulic drive mechanism that utilizes the water supply pressure. Additionally, a discharge/vacuum break valve device is positioned upstream of the hydraulic drive, allowing water to flow into the drive while also managing backflow when the water supply is interrupted. This design aims to enhance the reliability and efficiency of the flushing mechanism.
Further details of the patent outline the structure and functionality of the discharge/vacuum break valve device. It features an inflow port, an outflow port, and an air intake/water discharge opening, with specific configurations to optimize water flow and prevent backflow. The valve body can rotate to open or close the air intake/water discharge opening, and it is designed to maintain a low center of gravity when not in use. The device also incorporates a biasing spring that adjusts its force based on the valve's deformation, ensuring effective operation. The patent also mentions a flow rate reduction unit to manage the backward flow of water, contributing to the overall efficiency of the flush water tank apparatus.
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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.
