FR2257850B3 - - Google Patents

Info

Publication number
FR2257850B3
FR2257850B3 FR7400926A FR7400926A FR2257850B3 FR 2257850 B3 FR2257850 B3 FR 2257850B3 FR 7400926 A FR7400926 A FR 7400926A FR 7400926 A FR7400926 A FR 7400926A FR 2257850 B3 FR2257850 B3 FR 2257850B3
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
FR7400926A
Other languages
French (fr)
Other versions
FR2257850A1 (en
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
Priority to FR7400926A priority Critical patent/FR2257850A1/fr
Publication of FR2257850A1 publication Critical patent/FR2257850A1/fr
Application granted granted Critical
Publication of FR2257850B3 publication Critical patent/FR2257850B3/fr
Granted 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
    • F16L9/00—Rigid pipes
    • F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
  • Exhaust Silencers (AREA)
FR7400926A 1974-01-11 1974-01-11 Sound and thermally insulated duct system - has thermal insulating medium combined with perforated inner duct Granted FR2257850A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7400926A FR2257850A1 (en) 1974-01-11 1974-01-11 Sound and thermally insulated duct system - has thermal insulating medium combined with perforated inner duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400926A FR2257850A1 (en) 1974-01-11 1974-01-11 Sound and thermally insulated duct system - has thermal insulating medium combined with perforated inner duct

Publications (2)

Publication Number Publication Date
FR2257850A1 FR2257850A1 (en) 1975-08-08
FR2257850B3 true FR2257850B3 (en17) 1976-11-05

Family

ID=9133371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400926A Granted FR2257850A1 (en) 1974-01-11 1974-01-11 Sound and thermally insulated duct system - has thermal insulating medium combined with perforated inner duct

Country Status (1)

Country Link
FR (1) FR2257850A1 (en17)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02307418A (ja) * 1989-05-23 1990-12-20 Matsushita Electric Ind Co Ltd 真空掃除機用吸込みパイプ
FR2708709B1 (fr) * 1993-08-02 1995-10-27 Giudicelli Pascal Dispositif de silencieux pour un flux gazeux.
DE4445794C1 (de) * 1994-12-21 1996-01-25 Norres Richard Gasführungselement mit schallweichen Wänden zum Dämmen und Dämpfen von sich in Hauptkanälen ausbreitenden Geräuschen
JP3984308B2 (ja) * 1996-02-21 2007-10-03 イビデン株式会社 内燃機関の消音器
GB2483699B (en) * 2010-09-17 2013-11-06 Dave Wills Pipe insulation

Also Published As

Publication number Publication date
FR2257850A1 (en) 1975-08-08

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Legal Events

Date Code Title Description
ST Notification of lapse