FR513232A - Improvements to diaphragms for resonance boxes of sound reproducing devices, such as phonographs - Google Patents

Improvements to diaphragms for resonance boxes of sound reproducing devices, such as phonographs

Info

Publication number
FR513232A
FR513232A FR513232A FR513232DA FR513232A FR 513232 A FR513232 A FR 513232A FR 513232 A FR513232 A FR 513232A FR 513232D A FR513232D A FR 513232DA FR 513232 A FR513232 A FR 513232A
Authority
FR
France
Prior art keywords
phonographs
diaphragms
sound reproducing
reproducing devices
resonance boxes
Prior art date
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
FR513232A
Other languages
French (fr)
Inventor
Paul Ernst Butow
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR513232A publication Critical patent/FR513232A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR513232A 1917-05-05 1920-03-29 Improvements to diaphragms for resonance boxes of sound reproducing devices, such as phonographs Expired FR513232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US513232XA 1917-05-05 1917-05-05

Publications (1)

Publication Number Publication Date
FR513232A true FR513232A (en) 1921-02-10

Family

ID=21970595

Family Applications (1)

Application Number Title Priority Date Filing Date
FR513232A Expired FR513232A (en) 1917-05-05 1920-03-29 Improvements to diaphragms for resonance boxes of sound reproducing devices, such as phonographs

Country Status (1)

Country Link
FR (1) FR513232A (en)

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