Foster Electric has patented an oscillatory actuator with an inner guide to restrict movement of the plate spring supporting the mover inside the cylindrical case. The design ensures controlled oscillation of the mover by preventing excessive movement of the plate spring. 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 May 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.
Oscillatory actuator with inner guide for mover movement restriction
The granted patent (Publication Number: US12003155B2) discloses an oscillatory actuator comprising a cylindrical case housing an electromagnetic driver that drives a mover capable of oscillating. The actuator includes a plate spring with multiple arms supporting the mover and an inner guide that restricts the movement of the plate spring beyond a predetermined range. The inner guide is positioned closer to the center of the case than the plate spring along the mover's oscillation axis, preventing excessive movement.
Furthermore, the patent claims detail additional features of the oscillatory actuator, such as the inner guide restricting movement in directions intersecting the oscillation axis, the spiral shape of the plate spring's arms corresponding to the helical steps of the inner guide, and the configuration of separate inner guides for supporting different ends of the mover. These specific design elements aim to enhance the functionality and efficiency of the actuator by precisely controlling the movement of the plate spring and ensuring optimal oscillation of the mover within the case.
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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.
