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US 2024/0189633 A1Published application
Respiratory protective device with improved sound insulation
AssigneeHoneywell International Inc.
InventorsEn Yi CHEN, Hang TIAN, Da Cheng YE
Life of this patent
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Abstract
Example respiratory protective devices with improved sound insulation are provided. For example, an example respiratory protective device comprises an inner shell component and a fan mounting component. In some examples, the inner shell component defines at least one acoustic insulation portion that is indented on an outer surface of the inner shell component. In some embodiments, the fan mounting component protrudes from an indented surface of the at least one acoustic insulation portion and comprising a plurality of acoustic insulation ribs.
Claims20
A respiratory protective device comprising:
- an inner shell component defining at least one acoustic insulation portion that is indented on an outer surface of the inner shell component;
- and
- a fan mounting component protruding from an indented surface of the at least one acoustic insulation portion and comprising a plurality of acoustic insulation ribs, wherein the plurality of acoustic insulation ribs defines at least one curved ventilation channel, wherein a ventilation inlet width associated with the at least one curved ventilation channel is larger than a ventilation outlet width associated with the at least one curved ventilation channel.
Dependencies are inferred from the claim text.