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US 2007/0181843 A1Published application
Valve component with improved wear resistance
AssigneeMasco Corporation of Indiana
InventorsRichard Welty, Klaus Brondum, Douglas Richmond, Patrick Jonte
Life of this patent
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Abstract
A valve component for a faucet includes a substrate, a first layer of material provided above the substrate in an amount sufficient to improve abrasion resistance of the substrate, and a second layer of material provided above the first layer of material. The second layer of material includes amorphous diamond having sp3 bonding of at least about 40%, a hardness of at least about 45 GPa, and an elastic modulus of at least about 400 GPa.
Claims33
A valve component for a faucet comprising:
- a substrate;
- a first layer of material provided above the substrate in an amount sufficient to improve abrasion resistance of the substrate;
- and
- a second layer of material provided above the first layer of material, the second layer of material comprising amorphous diamond having sp3 bonding of at least about 40%, a hardness of at least about 45 GPa, and an elastic modulus of at least about 400 GPa.
1 more element
A faucet comprising:
- a first valve plate comprising a base material;
- a strengthening layer provided above the base material;
- and
- an amorphous diamond material provided above the strengthening layer, the amorphous diamond material having a coefficient of friction that is lower than that of diamond-like carbon and has a hardness that is greater than that of diamond-like carbon.
1 more element
A faucet valve plate comprising:
- a substrate;
- a layer of material comprising at least one material selected from the group consisting of chromium nitride and diamond-like carbon provided above the substrate;
- and
- an amorphous diamond layer provided above the layer of material, the amorphous diamond layer having a hardness that is greater than that of diamond-like carbon.
1 more element
Dependencies are inferred from the claim text.