US PATENT SUBCLASS 335 / 93
.~.~ Vibratory reed or other periodic contact actuator

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
87  DF  .~ Periodic (e.g., vibrators) {6}
93.~.~ Vibratory reed or other periodic contact actuator {1}
94  DF  .~.~.~> Tuned or resonant at a particular frequency

DEFINITION

Classification: 335/93

(under subclass 87) Subject matter wherein the structure includes significant vibratory reed or other periodically actuated means whereby a movable contact or contacts is periodically caused to engage one or more fixed contacts. The vibratory reed or other actuating structure may be unitary with or comprise the armature of the magnet means and still be classified here as long as the motion of the movable contact is directly responsive to or proportional to the movement of the armature.

(1) Note. Armature structure peculiar to the subclass 87 special type switch and separate from the contact actuating reed, or other means, is classified in subclasses 95+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

154, for reed switches with significant contact actuating structure where the reed may also act as an armature.

185+, for other electromagnetic switches with significant contact actuating means.

235, for polarized electromagnet with vibrating reed or spring bar armature.

SEE OR SEARCH CLASS 84, Music,

409, for tuning forks, per se.

178, Telegraphy,

47+, for telegraph transmitters or receivers utilizing vibrating reeds.

310, Electrical Generator or Motor Structure,

25, for reed type reciprocating motor structures and subclasses 32+ for self actuated interrupter devices utilizing flat spring armatures.

324, Electricity: Measuring and Testing,

76.49, for frequency meters utilizing tuned reeds.

331, Oscillators,

156, for oscillators with vibrating reed or string type electromechanical resonators.

333, Wave Transmission Lines and Networks, 186+, for electromechanical transducer type (tuning fork) electric wave filters.