Foster Electric has been granted a patent for an oscillatory actuator featuring a cylindrical case, an electromagnetic driver, and a mover. The design includes a plate spring with multiple arms for support and an inner guide that restricts the spring’s movement within a predetermined range. GlobalData’s report on Foster Electric 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 Foster Electric, Acoustic authentication was a key innovation area identified from patents. Foster Electric's grant share as of June 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.
Oscillatory actuator with electromagnetic driver and damper system
The granted patent US12003155B2 describes an innovative oscillatory actuator designed to enhance the functionality and stability of oscillating movements. The actuator features a cylindrical case housing an electromagnetic driver that facilitates the oscillation of a mover. Central to its design is a plate spring with multiple arms that support the mover within the case. An inner guide is strategically positioned within the case, closer to the center than the plate spring, to limit the movement of the plate spring beyond a predetermined range. This inner guide interacts with the plate spring after it has moved past its designated limits, ensuring controlled oscillation and preventing excessive movement.
Further claims detail the specific functionalities of the inner guide and plate spring. The inner guide not only restricts movement along the oscillation axis but also in intersecting directions, enhancing the actuator's stability. The design includes a spiral-shaped plate spring and a corresponding helical inner guide, which work together to maintain the integrity of the oscillatory motion. Additionally, the configuration ensures that the inner edge of the inner guide is positioned closer to the mover than the inner surface of the electromagnetic driver, optimizing the actuator's performance. The actuator's design also incorporates two separate inner guides to manage the movements of both ends of the mover, further contributing to its operational efficiency.
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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.
