<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE ep-patent-document PUBLIC "-//EPO//EP PATENT DOCUMENT 1.4//EN" "ep-patent-document-v1-4.dtd"><!-- Disclaimer: This ST.36 XML data has been generated from A2/A1 XML data enriched with the publication date of the A3 document - March 2013 - EPO - Directorate Publication - kbaumeister@epo.org --><ep-patent-document id="EP91302945A3" file="EP91302945NWA3.xml" lang="en" doc-number="0453130" date-publ="19920708" kind="A3" country="EP" status="N" dtd-version="ep-patent-document-v1-4"><SDOBI lang="en"><B000><eptags><B001EP>......DE......GB..IT..............................</B001EP><B005EP>R</B005EP></eptags></B000><B100><B110>0453130</B110><B120><B121>EUROPEAN PATENT APPLICATION</B121></B120><B130>A3</B130><B140><date>19920708</date></B140><B190>EP</B190></B100><B200><B210>91302945.0</B210><B220><date>19910404</date></B220><B230 /><B240 /><B250>en</B250><B251EP>en</B251EP><B260>en</B260></B200><B300><B310>510670</B310><B320><date>19900418</date></B320><B330><ctry>US</ctry></B330></B300><B400><B405><date>19920708</date><bnum>199228</bnum></B405><B430><date>19911023</date><bnum>199143</bnum></B430></B400><B500><B510><B516>5</B516><B511> 5H 04R  11/02   A</B511><B512> 5H 04R   9/02   B</B512><B512> 5H 04R   9/06   B</B512></B510><B540><B541>de</B541><B542>Induktiv angetriebener Lautsprecher mit stromleitendem Rohr</B542><B541>en</B541><B542>Inductively activated loudspeaker with conductive tube</B542><B541>fr</B541><B542>Haut-parleur activé par induction avec tube conducteur</B542></B540><B560 /><B590><B598>1</B598></B590></B500><B700><B710><B711><snm>KLIPSCH AND ASSOCIATES INC.</snm><iid>01353500</iid><irf>PJA/1315</irf><adr><str>Route 4, Oakhaven,
P.O. Box 688</str><city>Hope,
Arkansas 71801-0688</city><ctry>US</ctry></adr></B711></B710><B720><B721><snm>Klipsch, Paul Wilbur</snm><adr><str>321 North McRae</str><city>Hope,
Arkansas 71801</city><ctry>US</ctry></adr></B721><B721><snm>Hunter, James Roy</snm><adr><str>Rosston Road,
P.O. Box 919</str><city>Hope,
Arkansas 71801</city><ctry>US</ctry></adr></B721></B720><B740><B741><snm>Allman, Peter John</snm><sfx>et al</sfx><iid>00027675</iid><adr><str>MARKS &amp; CLERK,
Sussex House,
83-85 Mosley Street</str><city>Manchester M2 3LG</city><ctry>GB</ctry></adr></B741></B740></B700><B800><B840><ctry>DE</ctry><ctry>GB</ctry><ctry>IT</ctry></B840><B880><date>19920708</date><bnum>199228</bnum></B880></B800></SDOBI><abstract id="abst" lang="en"><p id="pa01" num="0001">An inductively activated loudspeaker produces sound by inducing an oscillating current in a shorted turn conductive tube that is positioned within a focused magnetic field. The loudspeaker includes an electrically excitable stationary coil positioned within the magnetic field and in inductive relation to the conductive cylinder. The oscillation of current within the stationary coil induces a corresponding oscillating current in the cylinder, which causes the cylinder to physically oscillate within the defined magnetic field. The resultant vibratory movement of the diaphragm, upon which the cylinder is mounted, has the effect of creating sound. Also disclosed is a combined stationary coil and outer pole assembly with internalized heat sinking, and which separably attaches to the remainder of the magnetic assembly of the loudspeaker.</p></abstract><search-report-data id="srep" srep-office="EP" date-produced="" lang=""><doc-page id="srep0001" file="srep0001.tif" type="tif" orientation="portrait" he="297" wi="210" /></search-report-data></ep-patent-document>