Foster Electric has patented an oscillatory actuator with a cylindrical case, electromagnetic driver, and leaf springs supporting a mover. The design includes elastic members made of elastic material bridging gaps between arms, enhancing performance. 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 January 2024 was 26%. Grant share is based on the ratio of number of grants to total number of patents.
Oscillatory actuator with leaf springs and elastic member
A recently granted patent (Publication Number: US11831214B2) discloses an oscillatory actuator designed with a cylindrical case housing an electromagnetic driver that oscillates a mover along the axis of the case. The actuator features first and second leaf springs on either side of the mover, each comprising a support, an annular frame, and spiral-shaped arms. An elastic member made of elastic material bridges the arm and an adjacent portion, creating a gap that allows for movement. This design enhances the actuator's functionality and efficiency.
Furthermore, the patent details specific configurations of the leaf springs, including the presence of three arms with the same spiral shape and the placement of the elastic member on each arm. The elastic member is strategically positioned to accommodate the vibrations of the mover, ensuring optimal performance. Additionally, the elastic material bridges areas with displacement differences, further improving the actuator's operation. With innovative features like cutouts in the annular frames for attachment to the case, this oscillatory actuator represents a significant advancement in actuator technology, promising enhanced functionality and reliability in various applications.
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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.
