Loudspeaker having elongated rectangular moving coil

Claim 2

An acoustic transducer comprising: at least magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; at least one nonmagnetizable conductor forming means having portions thereof positioned in said gaps; electric conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable diaphragm operably attached to at least one said conductor forming means.

Claim 3

An acoustic transducer as claimed in claim 1 wherein: each magnetized means is capable of producing magnetic fields in each said pair of gaps having substantially like configurations and having magnetic flux lines in opposite directions.

Claim 4

An acoustic transducer as claimed in claim 1 wherein: each said diaphragm is supported by flexible means.

Claim 5

An acoustic transducer as claimed in claim 3 wherein: each said diaphragm is substantially rigid.

Claim 6

An acoustic transducer as claimed in claim 1 wherein: each said diaphragm has substantially plane surface portions.

Claim 7

An acoustic transducer as claimed in claim 1 wherein: each said diaphragm has substantially nonuniform thickness.

Claim 8

An acoustic transducer comprising: at least one magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; said gaps being substantially filled with resilient non-magnetizable material; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; electric conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable diaphragm operably attached to at least one said conductor forming means.

Claim 9

An acoustic transducer comprising: at least one magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; said gaps being substantially filled with resilient non-magnetizable material; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; electric conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable diaphragm operably attached to at least one said conductor forming means.

Claim 10

An acoustic transducer comprising: at least one magnetized means having thin-wall portions for forming at least one pAir of spaced apart elongated gaps containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; electric conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable self-supporting diaphragm for housing at least one said magnetized means and at least one said conductor forming means, having a driver part operably attached to at least one said conductor forming means and having flexible support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 11

An acoustic transducer comprising: at least one magnetized means having thin-wall portions for forming at least one pAir of spaced apart elongated gaps containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; electric conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable self-supporting diaphragm for housing at least one said magnetized means and at least one said conductor forming means, having a driver part operably attached to at least one said conductor forming means and having flexible support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 12

An acoustic transducer as claimed in claim 8 wherein: each said self-supporting diaphragm has a base part for supporting at least one said magnetized means and said flexible support parts of said diaphragm and forming said tubular shape wherein said diaphragm encloses at least one said magnetized means and at least one said conductor forming means.

Claim 13

An acoustic transducer as claimed in claim 8 wherein: each said support part has inwardly extending portions.

Claim 14

An acoustic transducer as claimed in claim 10 wherein: each said support part consists of a single inward fold.

Claim 15

An acoustic transducer as claimed in claim 10 wherein: each said support part consists of an inward substantially semicircular part.

Claim 16

An acoustic transducer as claimed in claim 8 comprising in addition: flexible arresting means positioned in end portions of said self-supporting diaphragm and attached to said driver part of said self-supporting diaphragm.

Claim 17

An acoustic transducer as claimed in claim 9 comprising in addition: a mounting base consisting of an intersection of at least two planar surfaces for mounting said base part thereon.

Claim 18

An acoustic transducer comprising: at least one first magnetized elongated substantially U-shaped member; at least one second magnetized elongated substantially U-shaped member positioned about at least one said first magnetized U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; at least one conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable diaphragm operably attached to each said conductor forming means.

Claim 19

An acoustic transducer comprising: at least one first magnetized elongated substantially U-shaped member; at least one second magnetized elongated substantially U-shaped member positioned about at least one said first magnetized U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; at least one conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable diaphragm operably attached to each said conductor forming means.

Claim 20

An acoustic transducer as claimed in claim 15 wherein: each said conductor forming means is a substantially U-shaped member.

Claim 21

An acoustic transducer as claimed in claim 15 wherein: each said first and second U-shaped members are magnetized by positioning permanently magnetized material between base parts thereof with oppositely polarized faces in contact with said base parts, whereby said magnetized U-shaped members will produce magnetic flux lines in opposite directions in said gaps of said pair of gaps.

Claim 22

An acoustic transducer as claimed in claim 15 wherein: each magnetized means is capable of producing magnetic fields in said pair of gaps having substantially like configuration and having magnetic flux lines in opposite directions.

Claim 23

An acoustic transducer as claimed in claim 15 wherein: said diaphragm is supported by flexible means.

Claim 24

An acoustic transducer as claimed in claim 19 wherein: the diaphragm is substantially rigid.

Claim 25

An acoustic transducer as claimed in claim 15 wherein: the diaphragm has substantially plane surface portions.

Claim 26

An acoustic transducer as claimed in claim 15 wherein: the diaphragm has substantially nonuniform thickness.

Claim 27

An acoustic transducer as claimed in claim 15 wherein: said gaps are substantially filled with resilient non-magnetizable material.

Claim 28

An acoustic transducer comprising: at least one first magnetized elongated substantially U-shaped member; at least one second magnetized elongated substantially U-shaped member pOsitioned about at least one said first magnetized U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; at least one conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable self-supporting diaphragm for housing at least one said first and second magnetized U-shaped members and at least one said conductor forming means, having a driver part operably attached to at least one said conductor forming means and having flexible support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 29

An acoustic transducer comprising: at least one first magnetized elongated substantially U-shaped member; at least one second magnetized elongated substantially U-shaped member pOsitioned about at least one said first magnetized U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; at least one conductor means supported by said portions of each said conductor forming means in said gaps; and at least one non-magnetizable self-supporting diaphragm for housing at least one said first and second magnetized U-shaped members and at least one said conductor forming means, having a driver part operably attached to at least one said conductor forming means and having flexible support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 30

An acoustic transducer as claimed in claim 24 wherein: each said self-supporting diaphragm has a base part for supporting at least one said second U-shaped member and said flexible support parts of said tubular diaphragm and forming said tubular shape, whereby the diaphragm encloses at least one said first and second U-shaped member and at least one said conductor forming means.

Claim 31

An acoustic transducer as claimed in claim 24 wherein: each said support part has inwardly extending portions.

Claim 32

An acoustic transducer as claimed in claim 26 wherein: each said support part consists of a single inward fold.

Claim 33

An acoustic transducer as claimed in claim 26 wherein: each said support part consists of an inward substantially semicircular part.

Claim 34

An acoustic transducer as claimed in claim 24 comprising in addition: flexible arresting means positioned in end positions of said self-supporting diaphragm and attached to said driver part of said self-supporting diaphragm.

Claim 35

An acoustic transducer as claimed in claim 25 comprising in addition: a mounting base consisting of an intersection of at least two planar surfaces for mounting said base part thereon.

Claim 36

An acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetizable elongated substantially U-shaped member positioned about said first magnetizable U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetizable U-shaped members; permanently magnetized material positioned between base parts of said magnetizable U-shaped members with oppositely polarized faces in contact with said base parts for magnetizing said magnetizable U-shaped members and for producing magnetic fields having magnetic flux lines in opposite directions in said gaps of said pair of gaps; a non-magnetizable conductor forming U-shaped member having flange portions thereof positioned in said gaps; a conductor means supported by said flange portions of said conductor forming U-shaped member in said gaps; and a non-magnetizable self-supporting diaphragm for housing said first and second magnetizable U-shaped members and said conductor forming U-shaped member, having a driver part operably attached to said conductor forming U-shaped member and having flexible inwardly extending support parts for supporting said driver part at end portions thereof, and capable of forming a tubular shape with a base surface.

Claim 37

An acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetizable elongated substantially U-shaped member positioned about said first magnetizable U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetizable U-shaped members; permanently magnetized material positioned between base parts of said magnetizable U-shaped members with oppositely polarized faces in contact with said base parts for magnetizing said magnetizable U-shaped members and for producing magnetic fields having magnetic flux lines in opposite directions in said gaps of said pair of gaps; a non-magnetizable conductor forming U-shaped member having flange portions thereof positioned in said gaps; a conductor means supported by said flange portions of said conductor forming U-shaped member in said gaps; and a non-magnetizable self-supporting diaphragm for housing said first and second magnetizable U-shaped members and said conductor forming U-shaped member, having a driver part operably attached to said conductor forming U-shaped member and having flexible inwardly extending support parts for supporting said driver part at end portions thereof, and capable of forming a tubular shape with a base surface.

Claim 38

An acoustic transducer as claimed in claim 31 wherein said self-supporting diaphragm has a base part for supporting at least one said second U-shaped member and said flexible support parts of said diaphragm and forming said tubular shape; and comprising in addition a mounting base consisting of an intersection of at least two planar surfaces for mounting said base part thereon.

Claim 39

An acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetized elongated substantially U-shaped member positioned about said first magnetized U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped memBers; a non-magnetizable conductor forming U-shaped member having flange portions thereof positioned in said gaps; a conductor means supported by said flange portions of said conductor forming U-shaped member in said gaps; and a non-magnetizable self-supporting diaphragm for housing said first and second magnetizable U-shaped members and said conductor forming U-shaped members, having a driver part operably attached to said conductor forming U-shaped member and having flexible inward substantially inwardly-folded support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 40

An acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetized elongated substantially U-shaped member positioned about said first magnetized U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped memBers; a non-magnetizable conductor forming U-shaped member having flange portions thereof positioned in said gaps; a conductor means supported by said flange portions of said conductor forming U-shaped member in said gaps; and a non-magnetizable self-supporting diaphragm for housing said first and second magnetizable U-shaped members and said conductor forming U-shaped members, having a driver part operably attached to said conductor forming U-shaped member and having flexible inward substantially inwardly-folded support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 41

An acoustic transducer as claimed in claim 33 comprising in addition: inwardly extending flexible arresting means positioned in end positions of said self-supporting diaphragm and attached to said driver part of said self-supporting diaphragm.

Claim 42

An acoustic transducer comprising: a first magnetizable elongated substantially U-shaped member; a second magnetizable elongated substantially U-shaped member positioned about said first magnetizable U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetizable U-shaped members, permanently magnetized material positioned between base parts of said magnetizable U-shaped members with oppositely polarized faces in contact with said base parts for magnetizing said magnetizable U-shaped members and for producing magnetic fields having magnetic flux lines in opposite directions in said gaps of said pair of gaps; a non-magnetizable conductor forming U-shaped member having flange portions thereof positioned in said gaps; a conductor means supported by said flange portions of said conductor forming U-shaped member in said gaps; and a non-magnetizable self-supporting diaphragm for housing said first and second magnetizable U-shaped members and said conductor forming U-shaped members, having a driver part operably attached to said conductor forming U-shaped member and having flexible inward substantially semicircular support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 43

An acoustic transducer comprising: a first magnetizable elongated substantially U-shaped member; a second magnetizable elongated substantially U-shaped member positioned about said first magnetizable U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetizable U-shaped members, permanently magnetized material positioned between base parts of said magnetizable U-shaped members with oppositely polarized faces in contact with said base parts for magnetizing said magnetizable U-shaped members and for producing magnetic fields having magnetic flux lines in opposite directions in said gaps of said pair of gaps; a non-magnetizable conductor forming U-shaped member having flange portions thereof positioned in said gaps; a conductor means supported by said flange portions of said conductor forming U-shaped member in said gaps; and a non-magnetizable self-supporting diaphragm for housing said first and second magnetizable U-shaped members and said conductor forming U-shaped members, having a driver part operably attached to said conductor forming U-shaped member and having flexible inward substantially semicircular support parts for supporting said driver part, and capable of forming a tubular shape with a base surface.

Claim 44

An acoustic transducer as claimed in claim 35 comprising in addition: flexible inward substantially semicircular arresting means positioned in end positions of said self-supporting diaphragm and attached to said driver part of said self-supporting diaphragm.

Claim 45

An acoustic transducer as claimed in claim 35 wherein: said self-supporting diaphragm has a base part for supporting at least one said second U-shaped member and forming said tubular shape; and comprising in addition a mounting base consisting of an intersection of at least two planar surfaces for mounting said base part thereon.

Claim 46

A self-supporting diaphragm for acoustic transducers adapted to form with a base surface a tubular structure comprising: a non-magnetizable self-supporting diaphragm for housing at least one electromagnetic driving means; said diaphragm having a driver part being substantially rigid and capable of being moved by at least one electromagnetic driving means, and having flexible support parts for supporting said driver part and capable of being moved by at least one electromagnetic driving means; said driver part and said support parts capable of creating acoustic waves and capable of forming a tubular shape with a base surface.

Claim 47

A self-supporting diaphragm for acoustic transducers adapted to form with a base surface a tubular structure comprising: a non-magnetizable self-supporting diaphragm for housing at least one electromagnetic driving means; said diaphragm having a driver part being substantially rigid and capable of being moved by at least one electromagnetic driving means, and having flexible support parts for supporting said driver part and capable of being moved by at least one electromagnetic driving means; said driver part and said support parts capable of creating acoustic waves and capable of forming a tubular shape with a base surface.

Claim 48

A self-supporting diaphragm for an acoustic transducer as claimed in claim 38 wherein: each said support part has inwardly extending portions.

Claim 49

A self-supporting diaphragm for acoustic transducers as claimed in claim 39 wherein: each said support part consists of a single inward fold.

Claim 50

A self-supporting diaphragm for an acoustic transducer as claimed in claim 39 wherein: each said support part consists of an inward substantially semicircular part.

Claim 51

A self-supporting diaphragm for an acoustic transducer as claimed in claim 38 wherein: each said self-supporting diaphragm has a base pArt for supporting at least one electromagnetic driving means and said flexible support parts of said and forming said tubular shape, whereby said diaphragm encloses at least one electromagnetic driving means.

Claim 52

A self-supporting diaphragm for an acoustic transducer as claimed in claim 38 wherein: the driver part has substantially plane surface portions.

Claim 53

A self-supporting diaphragm for an acoustic transducer as claimed in claim 38 wherein: the diaphragm has substantially nonuniform thickness.

Claim 54

An electromagnetic driving means for an acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetized elongated substantially U-shaped member positioned about said first magnetized elongated U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor means in said gaps.

Claim 55

An electromagnetic driving means for an acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetized elongated substantially U-shaped member positioned about said first magnetized elongated U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor means in said gaps.

Claim 56

An electromagnetic driving means for an acoustic transducer as claimed in claim 45 wherein: said first and second magnetized U-shaped members are capable of producing magnetic fields in said gaps substantially like in configuration and having magnetic flux lines opposite in directions.

Claim 57

An electromagnetic driving means for an acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetized elongated substantially U-shaped member positioned about said first magnetized elongated U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming substantially U-shaped member having flange portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor means in said gaps.

Claim 58

An electromagnetic driving means for an acoustic transducer comprising: a first magnetized elongated substantially U-shaped member; a second magnetized elongated substantially U-shaped member positioned about said first magnetized elongated U-shaped member for forming a pair of spaced apart elongated gaps between flange portions of said magnetized U-shaped members containing fixed magnetic fields; at least one non-magnetizable conductor forming substantially U-shaped member having flange portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor means in said gaps.

Claim 59

An electromagnetic driving means for an acoustic transducer as claimed in claim 45 wherein: said first and second U-shaped members are magnetized by positioning permanently magnetized material between base parts thereof with oppositely polarized faces in contact with said base parts, whereby said magnetized U-shaped members will produce magnetic flux lines in opposite directions in said gaps of said pair of gaps.

Claim 60

An electromagnetic driving means for an acoustic transducer as claimed in claim 45 wherein: said gaps are substantially filled with resilient non-magnetizable material.

Claim 61

An electromagnetic driving means for an acoustic transducer comprising: at least magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor forming means in said gaps.

Claim 62

An electromagnetic driving means for an acoustic transducer comprising: at least magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor forming means in said gaps.

Claim 63

An electromagnetic driving means for an acoustic transducer as claimed in claim 50 wherein: said magnetized means is capable of producing in each said pair of gaps magnetic fields of substantially like configuration and having magnetic flux lines in opposite directions.

Claim 64

Electromagnetic driving means for an acoustic transducer as claimed in claim 50 wherein: each said conductor forming means is a substantially U-shaped member.

Claim 65

Electromagnetic driving means for an acoustic transducer comprising: magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; said gaps being substantially filled with reSilient non-magnetizable material; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor forming means in said gaps.

Claim 66

Electromagnetic driving means for an acoustic transducer comprising: magnetized means having therein at least one pair of spaced apart elongated gaps containing fixed magnetic fields, each elongated gap formed by non-leaking portions of said magnetized means having no substantial edge conductance of magnetic flux; said gaps being substantially filled with reSilient non-magnetizable material; at least one non-magnetizable conductor forming means having portions thereof positioned in said gaps; and at least one conductor means supported by said portions of each said conductor forming means in said gaps.