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
Links
Classifications
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- 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)
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 (US20080094685A1-20080424-C00004.png) | 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 (US20080094685A1-20080424-C00004.png) |
Families Citing this family (5)
| 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 |
-
1974
- 1974-01-11 FR FR7400926A patent/FR2257850A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2257850A1 (en) | 1975-08-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |