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Class Information
Number: 181/242
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > Mouthpiece (e.g., telephone, microphone, etc.)
Description: Subject matter comprising devices constructed to be spoken into.

Patents under this class:

Patent Number Title Of Patent Date Issued
8208673 Miniaturized acoustic boom structure for reducing microphone wind noise and ESD susceptibility Jun. 26, 2012
7165647 Mechanical acoustic filter by erosion etching Jan. 23, 2007
6622820 Pop shield for microphone Sep. 23, 2003
6457551 Replaceable muffler structure with an adjustable length Oct. 1, 2002
6418229 Directional microphone, in particular having symmetrical directivity Jul. 9, 2002
6401860 Cough silencer device Jun. 11, 2002
6085864 Cough muffler Jul. 11, 2000
5701354 Telephone mouthpiece for preventing wind noises and method for reducing wind noises input thereto Dec. 23, 1997
5413094 Apparatus for reducing the noise of coughs and sneezes May. 9, 1995
5349140 Microphone windscreen Sep. 20, 1994
5285024 Microphone Feb. 8, 1994
4967874 Microphone baffle apparatus Nov. 6, 1990
4966252 Microphone windscreen and method of fabricating the same Oct. 30, 1990
4932495 Vocal sound muffling device Jun. 12, 1990
4920564 Moisture barrier assembly Apr. 24, 1990
4887693 Wind and breath noise protector for microphones Dec. 19, 1989
4834212 Sound muffler for covering the mouth May. 30, 1989
4792013 Vocal muffler Dec. 20, 1988
4789044 Narrow directional microphone Dec. 6, 1988
4658932 Simulated binaural recording system Apr. 21, 1987
4625828 Acoustic reflector for ground plane microphone Dec. 2, 1986
4600077 Microphone wind shroud Jul. 15, 1986
4570746 Wind/breath screen for a microphone Feb. 18, 1986
4522283 Noise measurement Jun. 11, 1985
4483414 Sound dampening device for telephones Nov. 20, 1984
4396089 Sound muffling cup Aug. 2, 1983
4363937 Sound inlet for microphones Dec. 14, 1982
4129754 Reporting device Dec. 12, 1978
4057124 Sound suppressor Nov. 8, 1977

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