Today’s Patent – Locating Fastener for Firearm Optic

The said invention (US11902734B1) was invented by Jiang Xu, Haofeng Zhang, and Zeying ZHENG, and patented by USPTO on October 28^th, 2022. Currently, it stands assigned to the Shenzhen Shokz Co Ltd.

This disclosure describes an open earphone design that enhances both sound quality and user comfort by positioning a sound-producing component near the ear canal without blocking it. The earphone comprises a sound producer (housing a transducer) and an ear hook with two segments: one that sits between the ear and head, and another that extends outward to connect the sound producer. This structure enables the earphone to maintain an open-ear configuration, allowing natural ambient sound while delivering audio output near the ear canal. The design includes precise projections of the ear hook and sound producer on both a flat plane and a sagittal plane, creating closed curves that define specific area ranges to optimize sound positioning and user fit.

In various configurations, the earphone’s closed curves and projection areas are carefully adjusted to maintain ratios that contribute to stability and consistent audio quality during use. For instance, the ear hook and sound producer’s outer and inner contours, along with end contours and tangent segments, form closed curves with specific area ranges depending on whether the earphone is worn or unworn. This design approach ensures that the earphone remains lightweight, comfortable, and securely positioned without intruding into the ear canal, addressing both acoustic performance and ergonomic factors.