Acoustic transducer with improved electrode spacing

United States of America Patent

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Mar 8, 1988
Grant Date
N/A
app pub date
Sep 15, 1986
filing date
Sep 15, 1986

priority date (Note)
Expired

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Abstract

An acoustic transducer with an improved electret assembly mounting for providing spacings between the fixed and movable electrodes, and having as one feature the lowering of the undesired capacitance therebetween.

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Patent Owner(s)

Patent Owner	Address
KNOWLES ELECTRONICS INC 1151 MAPLEWOOD DR ITASCA IL A CORP OF DE	Not Provided

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H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Carlson, Elmer V	Prospect Heights, IL	16	600
Madaffari, Peter L	Elgin, IL	15	431

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Acoustic transducer with improved electrode spacing

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06907498

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PATENT NO	4730283
SERIAL NO	06907498
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06907498

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