Apple patents magnetic valve to tune sound in portable devices
Apple describes a small magnetic valve that can open or close an air path inside a portable device. By controlling this opening, the device can adjust how sound moves through its internal chambers.
In the filing’s own words
A portable electronic device comprising: an enclosure having an enclosure wall that forms an interior chamber surrounding a transducer and an opening from the interior chamber; and an electro-magnetic valve coupled to the opening and comprising a stationary portion that is energized upon application of a voltage to drive a movement of a movable portion between a first state and a second state operable to close or open the opening.
What exactly they claim (claim 1)
1. A portable electronic device comprising: an enclosure having an enclosure wall that forms an interior chamber surrounding a transducer and an opening from the interior chamber; and an electro-magnetic valve coupled to the opening and comprising a stationary portion that is energized upon application of a voltage to drive a movement of a movable portion between a first state and a second state operable to close or open the opening.
Facts
- Company
- Apple (Apple Inc.)
- Official title
- Stable Electro-Magnetic Valve for Intentional Leak or Tuning Applications
- Publication number
- US20260292389A1
- Application number
- 19458076
- Filed
- Jan 23, 2026
- Published
- Sep 24, 2026
- Inventors
- 4
- Claims
- 20
Classified under
H04R 1/1091 Electricity & electronicsF16K 31/0668 Mechanical engineeringMore from Apple in Audio & voice
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.