US PATENT SUBCLASS 381 / 345
.~.~ Acoustic enclosure

Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

150  DF  ELECTRO-ACOUSTIC AUDIO TRANSDUCER {18}
337  DF  .~ Having acoustic wave modifying structure {5}
345.~.~ Acoustic enclosure {6}
346  DF  .~.~.~> Acoustic resistance {2}
349  DF  .~.~.~> Bass reflex (e.g., rear wave)
350  DF  .~.~.~> Front wave
351  DF  .~.~.~> Plural chambers
352  DF  .~.~.~> Having internal wave reflecting means
353  DF  .~.~.~> Acoustic damping or attenuating resonator

DEFINITION

Classification: 381/345

Acoustic enclosure:

(under subclass 337) Subject matter including a housing surrounding the electro-acoustic transducer wherein the housing is specifically configured to modify characteristics of sound emitted or received by the transducer.

(1) Note. Electrical circuitry means amplifiers, filters, etc. ;terminals, leads, and so forth are not considered to be significant electrical circuity in this context.

SEE OR SEARCH THIS CLASS, SUBCLASS:

332+, for the combination of a loudspeaker in a housing is claimed with significant electrical circuity.

386+, for the combination of a loudspeaker in a housing in which details other than acoustic properties are claimed.

SEE OR SEARCH CLASS

181, Acoustics, 198+, for housing or enclosure for a mechanical acoustic sound modifying means.