Polymer Covered Instrument String
AssigneeD’Addario & Company, Inc.
InventorsJames D'Addario, Arsalan Delfanazari, Kim Auyeung
Life of this patent
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Abstract
A wire with a protective covering made from a non-fluorinated polymer fused to the outer surface. The wire may be part of a musical instrument string, and the covering may include a secondary polymer that is non-fluorinated. The wire exhibits high durability and shows improved strength compared to a comparable wire with fluorinated polymer covering, and the musical instrument string exhibits bright tone with low damping.
Claims22
A covered musical instrument string, comprising:
- a central core wire, multifilament wire core, monofilament polymer fiber core or multifilament polymer fiber core;
- a winding wire wound around the central core wire, multifilament wire core, monofilament polymer fiber core or multifilament polymer fiber core, the winding wire having an outer surface;
- and
- a cover layer fused to the outer surface of the winding wire, wherein
- the cover layer is formed from a non-fluorinated polymer.
A covered musical instrument string, comprising:
- a musical instrument string defining a metallic outer surface;
- and
- a cover layer fused to the outer surface, wherein
- the cover layer is formed from a non-fluorinated polymer.
A process for making a covered musical instrument string, comprising the steps of:
- providing a central core wire, multifilament wire core, monofilament polymer fiber core or multifilament polymer fiber core;
- winding a winding wire around the central core wire, multifilament wire core, monofilament polymer fiber core or multifilament polymer fiber core;
- wrapping a film layer comprising a non-fluorinated polymer around the winding wire to form a string precursor;
- and
- heating the string precursor at a temperature and for a duration sufficient to cure the film layer and fuse it to the winding wire, thereby forming the covered string.
Dependencies are inferred from the claim text.