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Class 181/157 - DIAPHRAGM


Subclass of Class 181 - Acoustics
Definition: Subject matter including a vibratable partition which is
No. of applications: 15
Last issue date: 02/23/2012


Application No.Application TitleIssue Date
20120043157THREE DIMENSIONAL ACOUSTIC PASSIVE RADIATING
A three dimensional acoustic passive radiator diaphragm. A diaphragm a three dimensional volume. An acoustic driver radiates pressure waves into the three dimensional volume to cause the diaphragm to expand and contract. The three dimensional passive radiator may includ...
02/23/2012
20110315472INTAKE SOUND GENERATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
An intake sound generation apparatus for an internal combustion engine, including an introduction duct connected to an intake passage of an intake system of the engine, a vibration member including a diaphragm portion which is vibrated by intake pulsation in the intake ...
12/29/2011
20110255720ELECTRET DIAPHRAGM AND SPEAKER USING THE SAME
An electret diaphragm and a speaker using the same are provided. The electret diaphragm includes an electret layer, a bonding layer adhered to a surface of the electret layer, and an aluminum (Al) electrode layer adhered on the bonding layer. The electret layer at least...
10/20/2011
20110240401CARBONACEOUS ACOUSTIC DIAPHRAGM AND METHOD FOR MANUFACTURING THE SAME
A carbonaceous acoustic diaphragm whose density is reduced while retaining the required stiffness is provided. Carbon nanofibers and spherical particles of PMMA are mixed into a carbon-containing resin such as a polyvinyl chloride resin, and the mixture is carbonized to...
10/06/2011
20110235829DIAPHRAGM AND SILICON CONDENSER MICROPHONE USING SAME
Disclosed is a diaphragm includes a vibrating member, a plurality of supporting members extending from a periphery of the vibrating member along a direction away from a center of the diaphragm, and a plurality of separating portions each located between two adjacent sup...
09/29/2011
20110232990VIBRATING BODY FOR SPEAKER AND SPEAKER DEVICE
A speaker vibrating body vibrated by a driving part includes a plurality of diaphragms vibratably supported by a static part supporting said driving part and a diaphragm connecting part, provided between a first diaphragm and a second diaphragm among said plurality of d...
09/29/2011
20110019866MEMBRANE FOR AN ELECTROACOUSTIC TRANSDUCER
A membrane for an electroacoustic transducer is disclosed having a first area, a second area, which is arranged for translatory movement in relation to said first area, and a third area, which connects said first area and said second area, wherein local, planar spring c...
01/27/2011
20090038878Acoustic diaphragm and speaker
An acoustic diaphragm includes a diaphragm formed of a uniform material and a first standing wave suppression member provided on a surface of the diaphragm along a first direction of passing through a center of the diaphragm....
02/12/2009
20080277195Engine and technique for generating an acoustic signal
A device for generating an acoustic signal in a fluid includes an engine operable to repeat a thermodynamic process to vibrate a membrane of the engine to generate an acoustic signal having more than one period. The thermodynamic process includes heating mass inside a c...
11/13/2008
20080277196Engine and technique for generating an acoustic signal
A device for generating an acoustic signal in a fluid includes an engine operable to repeat a thermodynamic process to vibrate a membrane of the engine to generate an acoustic signal having more than one period. The thermodynamic process includes heating mass inside a c...
11/13/2008
20080230304Membrane for an Electroacoustic Transducer
A membrane (2′) for an electroacoustic transducer (1) is disclosed having a first area (A1), a second area (A2), which is arranged for translatory movement in relation to said first area (A1), and a third area (A3), which conn...
09/25/2008
20080202845Membrane with a High Resistance Against Buckling and/or Crinkling
A membrane (2) for an electroacoustic transducer (1) is disclosed, wherein a thickness (d) of said membrane (2) and an average Young's modulus (Eavg) of said membrane (2) are chosen in such a way that the critical load (Fbc), which causes the...
08/28/2008
20070209866Diaphragm for a Loudspeaker with a Moving Coil
A preferably elongated loudspeaker (LS), which preferably comprises a cylindrical moving coil (SP) and an elongated diaphragm (M) with an elongated fastening part (B) and an annular retaining part (H) lying within the fastening part (B), and with corrugations (S1...
09/13/2007
20070125591Audio speaker with wobble free voice coil movement
A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top edge o...
06/07/2007
20050092543Speaker
A speaker in which the basket holding the voice coil, cone and damper has a ribbed top flange and a ribbed bottom flange, a gasket is capped on the suspension of the cone at the ribbed top flange and fastened thereto with screws without the use of glue, and a holder fra...
05/05/2005
 
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