FR54338E - Method of constructing soundproofing channels for ventilation - Google Patents

Method of constructing soundproofing channels for ventilation

Info

Publication number
FR54338E
FR54338E FR54338DA FR54338E FR 54338 E FR54338 E FR 54338E FR 54338D A FR54338D A FR 54338DA FR 54338 E FR54338 E FR 54338E
Authority
FR
France
Prior art keywords
soundproofing
constructing
ventilation
channels
soundproofing channels
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
French (fr)
Inventor
Alexandre De Rosen
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.)
LES TRAVAUX SOUTERRAINS
Original Assignee
LES TRAVAUX SOUTERRAINS
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 LES TRAVAUX SOUTERRAINS filed Critical LES TRAVAUX SOUTERRAINS
Application granted granted Critical
Publication of FR54338E publication Critical patent/FR54338E/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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR54338D 1945-10-31 1945-10-31 Method of constructing soundproofing channels for ventilation Expired FR54338E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR54338T 1945-10-31

Publications (1)

Publication Number Publication Date
FR54338E true FR54338E (en) 1948-12-23

Family

ID=8688797

Family Applications (1)

Application Number Title Priority Date Filing Date
FR54338D Expired FR54338E (en) 1945-10-31 1945-10-31 Method of constructing soundproofing channels for ventilation

Country Status (1)

Country Link
FR (1) FR54338E (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095504B (en) * 1955-03-18 1960-12-22 Nordwestdeutscher Rundfunk Absorption damper for air conditioning or ventilation systems
DE1109344B (en) * 1954-08-16 1961-06-22 Connor Eng Corp Multi-stage noise-absorbing air outlet for air conditioning systems
US3177972A (en) * 1960-12-14 1965-04-13 Garrett Corp Sound absorbing gas turbine exhaust duct

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1109344B (en) * 1954-08-16 1961-06-22 Connor Eng Corp Multi-stage noise-absorbing air outlet for air conditioning systems
DE1095504B (en) * 1955-03-18 1960-12-22 Nordwestdeutscher Rundfunk Absorption damper for air conditioning or ventilation systems
US3177972A (en) * 1960-12-14 1965-04-13 Garrett Corp Sound absorbing gas turbine exhaust duct

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