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FR59715E - Perfectionnement aux enceintes à volume variable - Google Patents

Perfectionnement aux enceintes à volume variable

Info

Publication number
FR59715E
FR59715E FR59715DA FR59715E FR 59715 E FR59715 E FR 59715E FR 59715D A FR59715D A FR 59715DA FR 59715 E FR59715 E FR 59715E
Authority
FR
France
Prior art keywords
development
variable volume
speakers
volume speakers
variable
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
Other languages
English (en)
Inventor
Georges-Henri-Joseph Roussel
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 filed Critical
Application granted granted Critical
Publication of FR59715E publication Critical patent/FR59715E/fr
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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR59715D 1949-07-08 1949-07-08 Perfectionnement aux enceintes à volume variable Expired FR59715E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR59715T 1949-07-08

Publications (1)

Publication Number Publication Date
FR59715E true FR59715E (fr) 1954-07-16

Family

ID=8693503

Family Applications (1)

Application Number Title Priority Date Filing Date
FR59715D Expired FR59715E (fr) 1949-07-08 1949-07-08 Perfectionnement aux enceintes à volume variable

Country Status (1)

Country Link
FR (1) FR59715E (fr)

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