Blast attenuating earplug
First Claim
Patent Images
1. An earplug comprising:
- a body configured to be inserted into an ear canal, the body defining a channel having at least two ends and a cavity;
a movable structure disposed within the cavity in the channel; and
a retaining mechanism comprising one or more filaments configured to retain the movable structure in a rest position within the cavity;
wherein the movable structure is configured to allow passage of sound around the movable structure in the rest position within the channel,block at least a portion of the channel in a deflected position within the channel, andmove from the rest position to the deflected position based on receiving, at one of the at least two ends of the channel, a pressure wave having at least a threshold amplitude pressure, andwherein the retaining mechanism is configured to break responsive to the deflection of the movable structure to the deflected position.
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Abstract
An earplug includes a body, insertable into an ear canal, where the body defines a channel having at least two ends. The channel can house a movable structure configured to allow passage of sound around the movable structure in a rest position, and to block at least a portion of the channel in a deflected position. The movable structure moves from the rest position to the deflected position based on receiving, at one of the at least two ends of the channel, a pressure wave having at least a threshold amplitude pressure to block at least a portion of the pressure wave from reaching the other end of the channel.
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Citations
14 Claims
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1. An earplug comprising:
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a body configured to be inserted into an ear canal, the body defining a channel having at least two ends and a cavity; a movable structure disposed within the cavity in the channel; and a retaining mechanism comprising one or more filaments configured to retain the movable structure in a rest position within the cavity; wherein the movable structure is configured to allow passage of sound around the movable structure in the rest position within the channel, block at least a portion of the channel in a deflected position within the channel, and move from the rest position to the deflected position based on receiving, at one of the at least two ends of the channel, a pressure wave having at least a threshold amplitude pressure, and wherein the retaining mechanism is configured to break responsive to the deflection of the movable structure to the deflected position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification