US PATENT SUBCLASS 116 / 144
.~.~.~ Toothed wheel

Current as of: June, 1999
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116 /   HD   SIGNALS AND INDICATORS

137 R  DF  HORNS, WHISTLES AND COMPRESSIONAL WAVE GENERATORS {6}
142 R  DF  .~ Diaphragm horns {2}
143  DF  .~.~ Rotary striker {2}
144.~.~.~ Toothed wheel {1}
145  DF  .~.~.~.~> Parallel diaphragm

DEFINITION

Classification: 116/144

(under subclass 143) Devices in which the striker has the form of a toothed wheel, the teeth being fixed or rigid with the wheel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

58, for vehicle energy actuated pneumatic signals.

SEE OR SEARCH CLASS

340, Communications: Electrical,

390.1+, for similar subject matter where the rotating hammers are electrically actuated.