NL33150C - - Google Patents

Info

Publication number: NL33150C
Authority: NL; Netherlands

Application number

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1930-09-17

Publication of NL33150C publication Critical patent/NL33150C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/22—Clamping rim of diaphragm or cone against seating
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Multimedia (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

NL33150D 1930-09-17 NL33150C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE599805T		1930-09-17

Publications (1)

Publication Number	Publication Date
NL33150C true NL33150C (en)

Family

ID=34608816

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL33150D NL33150C (en)	1930-09-17

Country Status (4)

Country	Link
US (1)	US1934184A (en)
DE (1)	DE599805C (en)
FR (1)	FR722913A (en)
NL (1)	NL33150C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2691148A (en) *	1950-06-24	1954-10-05	Rca Corp	Ultrasonic transducer
US3198890A (en) *	1961-06-14	1965-08-03	Rosen Alfred H	High fidelity sound reproducer
US4354066A (en) *	1980-09-15	1982-10-12	Necoechea Robert W	Rigid-diaphragm transducer with plural coils
TW510139B (en) *	2001-01-26	2002-11-11	Kirk Acoustics As	An electroacoustic transducer and a coil and a magnet circuit therefor

0
- NL NL33150D patent/NL33150C/xx active
1930
- 1930-09-17 DE DE1930599805D patent/DE599805C/en not_active Expired
1931
- 1931-09-15 FR FR722913D patent/FR722913A/en not_active Expired
- 1931-12-26 US US583297A patent/US1934184A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR722913A (en)	1932-03-30
DE599805C (en)	1934-07-09
US1934184A (en)	1933-11-07

Publication	Publication Date	Title
FR741728A (en)	1933-02-18
FR691497A (en)	1930-10-22
FR678473A (en)	1930-03-22
FR675564A (en)	1930-02-13
FR675273A (en)	1930-02-08
FR674017A (en)	1930-02-24
FR695251A (en)	1930-12-13
FR691832A (en)	1930-10-25
FR687752A (en)	1930-09-12
FR684305A (en)	1930-07-08
FR675588A (en)	1930-02-13
FR674977A (en)	1930-02-05
BE376577A (en)
NL33150C (en)
BE376876A (en)
BE377025A (en)
BE377088A (en)
BE377376A (en)
BE379274A (en)
BE379517A (en)	1931-06-30
BE379981A (en)
BE379989A (en)	1931-06-30
BE381762A (en)
BE382687A (en)
BE382766A (en)