NL90604C - - Google Patents

Info

Publication number
NL90604C
NL90604C NL90604DA NL90604C NL 90604 C NL90604 C NL 90604C NL 90604D A NL90604D A NL 90604DA NL 90604 C NL90604 C NL 90604C
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.)
Publication of NL90604C publication Critical patent/NL90604C/xx

Links

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
    • 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL90604D 1951-12-05 NL90604C (en(2012))

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28558/51A GB722270A (en) 1951-12-05 1951-12-05 Improvements in or relating to loudspeakers having a conical diaphragm

Publications (1)

Publication Number Publication Date
NL90604C true NL90604C (en(2012))

Family

ID=10277516

Family Applications (1)

Application Number Title Priority Date Filing Date
NL90604D NL90604C (en(2012)) 1951-12-05

Country Status (5)

Country Link
US (1) US2732908A (en(2012))
DE (1) DE940996C (en(2012))
FR (1) FR1067372A (en(2012))
GB (1) GB722270A (en(2012))
NL (1) NL90604C (en(2012))

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL219278A (en(2012)) * 1956-07-24
DE1288146B (de) * 1962-10-31 1969-01-30 Siemens Ag Elektroakustischer Wandler
US3742493A (en) * 1971-12-06 1973-06-26 Edwards Co Audible signal apparatus
CN102118672A (zh) * 2011-03-28 2011-07-06 苏州上声电子有限公司 扬声器振动膜片及扬声器
US10194245B1 (en) 2017-07-28 2019-01-29 Bose Corporation Acoustic transducer with vibration damping

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1298290A (en) * 1916-05-02 1919-03-25 Thomas Chalmers Diaphragm for talking-machines.
US2124597A (en) * 1934-01-31 1938-07-26 Rca Corp Acoustic device
US1743767A (en) * 1927-04-13 1930-01-14 Focht Nevin Seasholtz Sound-reproducing diaphragm
US1917309A (en) * 1931-04-10 1933-07-11 Siemens Ag Diaphragm for acoustic apparatus
DE592373C (de) * 1931-04-10 1934-02-08 Telefunken Gmbh Grossflaechenmembran, die durch ueberdeckte Aussparungen zwischen Mitte und Rand in Zonen verschiedener Eigenschwingungszahl aufgeteilt ist
US1916223A (en) * 1932-02-12 1933-07-04 Bell Telephone Labor Inc Sound translating device
US1990409A (en) * 1932-02-19 1935-02-05 Neville Athol Ernest Acoustical diaphragm
US2022060A (en) * 1934-08-29 1935-11-26 Bell Telephone Labor Inc Acoustic device
US2115924A (en) * 1935-10-05 1938-05-03 Magnavox Co Acoustic apparatus
US2531634A (en) * 1945-01-11 1950-11-28 Athol E N Lawrance Acoustical diaphragm with stiffening means
FR928176A (fr) * 1946-05-15 1947-11-20 Membrane pour haut-parleurs dynamiques
NL73443C (en(2012)) * 1949-03-31

Also Published As

Publication number Publication date
FR1067372A (fr) 1954-06-15
DE940996C (de) 1956-03-29
US2732908A (en) 1956-01-31
GB722270A (en) 1955-01-19

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