FR2657945B3 - Multilayer pipe comprising helicouidales protuberances fluid guide on its inner surface. - Google Patents

Multilayer pipe comprising helicouidales protuberances fluid guide on its inner surface.

Info

Publication number
FR2657945B3
FR2657945B3 FR9101084A FR9101084A FR2657945B3 FR 2657945 B3 FR2657945 B3 FR 2657945B3 FR 9101084 A FR9101084 A FR 9101084A FR 9101084 A FR9101084 A FR 9101084A FR 2657945 B3 FR2657945 B3 FR 2657945B3
Authority
FR
Grant status
Grant
Patent type
Prior art keywords
helicouidales
protuberances
inner surface
fluid guide
multilayer pipe
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 - Lifetime
Application number
FR9101084A
Other languages
French (fr)
Other versions
FR2657945A3 (en )
Inventor
Lee Jong Ho
Original Assignee
Lee Jong Ho
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
Grant date

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/21Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
FR9101084A 1989-02-05 1991-01-31 Multilayer pipe comprising helicouidales protuberances fluid guide on its inner surface. Expired - Lifetime FR2657945B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR900001329A KR900012581A (en) 1989-02-05 1990-02-05 A method for correcting the defective portion coupled to the human jaw and calibration plate for him

Publications (2)

Publication Number Publication Date
FR2657945A3 true FR2657945A3 (en) 1991-08-09
FR2657945B3 true FR2657945B3 (en) 1992-01-17

Family

ID=19295786

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9101084A Expired - Lifetime FR2657945B3 (en) 1989-02-05 1991-01-31 Multilayer pipe comprising helicouidales protuberances fluid guide on its inner surface.

Country Status (2)

Country Link
DE (1) DE9101324U1 (en)
FR (1) FR2657945B3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2718475B1 (en) * 1994-04-07 1996-05-03 Nicoll Raccords Plastiques A tubular element for acoustic sanitary unit falls in the building.
DE4429045B4 (en) * 1994-08-16 2005-11-24 E. Missel Gmbh insulation
FR2767902B1 (en) 1997-09-03 1999-10-15 Nicoll Raccords Plastiques connection device improves acoustic sanitary fall
GB9828696D0 (en) * 1998-12-29 1999-02-17 Houston J G Blood-flow tubing
DE19908673A1 (en) * 1999-02-26 2000-09-07 Rockwool Mineralwolle pipe shell
GB2369797B (en) 2001-11-20 2002-11-06 Tayside Flow Technologies Ltd Helical formations in tubes
GB0306176D0 (en) 2003-03-18 2003-04-23 Imp College Innovations Ltd Tubing
GB0315714D0 (en) 2003-07-04 2003-08-13 Tayside Flow Technologies Ltd An internal formation for a conduit
GB0423422D0 (en) 2004-10-21 2004-11-24 Bard Inc C R Medical device for fluid flow, and method of forming such device
US9597214B2 (en) 2008-10-10 2017-03-21 Kevin Heraty Medical device
EP2216579B1 (en) * 2009-02-04 2012-04-18 FESTO AG & Co. KG Compressed air acoustic dampening system
GB201012737D0 (en) 2010-07-29 2010-09-15 Airbus Operations Ltd Improvements to aircraft refuel system piping
CN102116395A (en) * 2011-02-23 2011-07-06 李玉珊 Wedge type spiral sound reducing pipe
US9151415B2 (en) 2012-07-17 2015-10-06 Chevron U.S.A. Inc. Method and apparatus for reducing fluid flow friction in a pipe
CN103721337B (en) * 2012-10-16 2017-02-22 上海微创医疗器械(集团)有限公司 With intravascular guidewire catheter and method for manufacturing the push
CN104500869A (en) * 2014-11-25 2015-04-08 南通四通林业机械制造安装有限公司 Dryer air pipe with noise reduction function
CN106090420A (en) * 2016-08-25 2016-11-09 吴忠仪表有限责任公司 Noise reduction assembly and pressure reducing valve comprising same

Also Published As

Publication number Publication date Type
DE9101324U1 (en) 1991-06-06 grant
FR2657945A3 (en) 1991-08-09 application

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