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US 12,102,182 B2Granted
Negative Poisson's ratio materials for winter sports equipment
OwnerJoon Bu Parkinventor
Life of this patent
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Abstract
A ski includes an elongated ski body having a bottom layer defining a bottom surface of the ski, a top layer defining a top surface of the ski, and a middle layer disposed between the bottom layer and the top layer, in which the middle layer includes a negative Poisson's ratio (NPR) foam material having a Poisson's ratio of between 0 and −1.
Claims9
A ski comprising:
- an elongated ski body having a bottom layer defining a bottom surface of the ski, a top layer defining a top surface of the ski, and a middle layer disposed between the bottom layer and the top layer,
- in which the middle layer comprises a negative Poisson's ratio (NPR) foam material having a Poisson's ratio of between 0 and −1;
- and
- in which the ski body comprises edges disposed along a length of the ski body on each side of the ski body, in which each edge comprises an NPR metal foam material.
1 more element
Dependencies are inferred from the claim text.