FR2140579B3 - - Google Patents

Info

Publication number
FR2140579B3
FR2140579B3 FR7220674A FR7220674A FR2140579B3 FR 2140579 B3 FR2140579 B3 FR 2140579B3 FR 7220674 A FR7220674 A FR 7220674A FR 7220674 A FR7220674 A FR 7220674A FR 2140579 B3 FR2140579 B3 FR 2140579B3
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7220674A
Other languages
French (fr)
Other versions
FR2140579A1 (enrdf_load_stackoverflow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BERTAGNI JOSE
Original Assignee
BERTAGNI JOSE
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.)
Filing date
Publication date
Application filed by BERTAGNI JOSE filed Critical BERTAGNI JOSE
Publication of FR2140579A1 publication Critical patent/FR2140579A1/fr
Application granted granted Critical
Publication of FR2140579B3 publication Critical patent/FR2140579B3/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
    • 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
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR7220674A 1971-06-08 1972-06-08 Expired FR2140579B3 (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AR23605971 1971-06-08
AR23606071 1971-06-08

Publications (2)

Publication Number Publication Date
FR2140579A1 FR2140579A1 (enrdf_load_stackoverflow) 1973-01-19
FR2140579B3 true FR2140579B3 (enrdf_load_stackoverflow) 1975-08-08

Family

ID=25590907

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7220674A Expired FR2140579B3 (enrdf_load_stackoverflow) 1971-06-08 1972-06-08

Country Status (4)

Country Link
US (1) US3722617A (enrdf_load_stackoverflow)
DE (1) DE7221547U (enrdf_load_stackoverflow)
FR (1) FR2140579B3 (enrdf_load_stackoverflow)
GB (1) GB1369928A (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1510797A (en) * 1974-11-28 1978-05-17 Bertagni J Diaphragm for use in an electroacoustic transducer
US4318198A (en) * 1979-11-21 1982-03-09 Wollard Aircraft Equipment, Inc. Conveyance loader wheel position indicator
US4997058A (en) * 1989-10-02 1991-03-05 Bertagni Jose J Sound transducer
US5425107A (en) * 1992-04-09 1995-06-13 Bertagni Electronic Sound Transducers, International Corporation Planar-type loudspeaker with dual density diaphragm
WO1995001080A1 (en) * 1993-06-17 1995-01-05 Bertagni Electronic Sound Transducers International Corporation Planar diaphragm loudspeaker with counteractive weights
EP0729628A4 (en) * 1993-11-18 1999-06-16 Sound Advance Syst Inc IMPROVED SPEAKER WITH PLANAR DIAPHRAGM
FI951223A0 (fi) * 1995-03-16 1995-03-16 Seppo Vaeinaemoe Noponen Planfoerstaerkare
US5991424A (en) * 1995-04-28 1999-11-23 Sound Advance Systems, Inc. Planar diaphragm speaker with heat dissipator
KR19990044067A (ko) * 1995-09-02 1999-06-25 에이지마. 헨리 벤딩기계
US6929091B2 (en) * 2002-10-28 2005-08-16 Sound Advance Systems, Inc. Planar diaphragm loudspeaker and related methods
DE102015217778B4 (de) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Akustischer Sensor mit einer Membran und einem elektroakustischen Wandler
GB2586959B (en) * 2019-08-08 2021-10-13 Amina Tech Limited Distributed mode loudspeaker

Also Published As

Publication number Publication date
US3722617A (en) 1973-03-27
DE7221547U (de) 1972-09-07
GB1369928A (en) 1974-10-09
FR2140579A1 (enrdf_load_stackoverflow) 1973-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse