BIOMIMETIC AND INFLATABLE ENERGY-ABSORBING HELMET TO REDUCE HEAD INJURIES AND CONCUSSIONS
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United States of America Patent
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Issued Date -
Aug 12, 2021
app pub date -
Apr 26, 2021
filing date -
Jul 28, 2017
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Abstract
A helmet for protecting the head of a user. The helmet includes an outer shell, an inner shell having padding that contacts the head and a cavity formed between the inner and the outer shells, wherein the cavity is filled with a fluid such as air. The helmet also includes a plurality of resilient strands located in the cavity and affixed between the outer and inner shells, wherein an impact force on the outer shell causes the head to impact the padding with a reaction force that compresses the cavity. Compression of the cavity pushes fluid through the strands to increase fluid friction and alter a velocity of the fluid. This decreases the energy of impact and consequently reduces an amount of force transferred to the head thereby protecting the head from normal and shear force.
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