Multi-layered trolley wheel
OwnerPo-Jen Shih, Cheryl Smithers +1inventors
InventorsPo-Jen Shih, Cheryl Smithers, Zhanjun Gao
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Abstract
A wheel has a metallic hub with a circumferential surface. A first layer formed of a compliant material surrounds the outer circumferential surface, and a second layer surrounds the first layer. The compliant material has a modulus of elasticity of between about 1 MPa and about 10,000 MPa, and the second layer has a modulus of elasticity between about 10,000 and about 210,000 MPa. The first layer provides compliance and the second layer provides impact resistance to inhibit wear of the wheel thereby minimizing production of metallic contaminants.
Claims16
A wheel, comprising:
- a metallic hub having an outer circumferential surface;
- a first layer surrounding said outer circumferential surface and having a modulus of elasticity of between about 1 MPa and about 10,000 MPa;
- and
- a second layer surrounding said first layer and having a modulus of elasticity between about 10,000 and about 210,000 MPa, said first layer providing compliance and said second layer providing impact resistance to inhibit wear of said wheel thereby minimizing production of metallic contaminants.
A trolley wheel, comprising:
- a metallic hub having an outer circumferential surface;
- an elastomeric layer surrounding said outer circumferential surface;
- and
- a metallic layer surrounding said elastomeric layer, said elastomeric layer providing compliance and said metallic layer providing impact resistance to inhibit wear of said wheel thereby minimizing production of metallic contaminants.
Dependencies are inferred from the claim text.