Signals and indicators – Bells
Reexamination Certificate
2005-03-29
2005-03-29
Fulton, Christopher W. (Department: 2859)
Signals and indicators
Bells
C116S171000
Reexamination Certificate
active
06871613
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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Murray Philip James
Schwartz Gregory L.
Wenner Russell A.
Cohen Amy R.
Fulton Christopher W.
Howson and Howson
Schulmerich Carillons, Inc.
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