Tarnish-resistant handbell and its method of manufacture
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United States of America Patent
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Mar 29, 2005
Grant Date -
Dec 9, 2004
app pub date -
Jun 6, 2003
filing date -
Jun 6, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A handbell has a bell body with an inner surface engageable by a clapper to produce a sound corresponding to a note of the musical scale and an outer surface with a vapor deposited nitride layer that resists tarnish. Preferably, the vapor deposited nitrate layer has a thickness of less than about 5 microns and does not adversely affect the sound produced when the handbell is rung. In addition, preferably the vapor deposited nitrate layer is zirconium nitride or titanium nitride and has a Vickers hardness (HV) of at least 2300. A method of making and/or refurbishing a handbell is also disclosed.
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