FR2289833A1 - Plastic hose has saw-like undulations with unequal sides - longer side has inward concavity, the two sides enclosing angle of 100 degs - Google Patents

Plastic hose has saw-like undulations with unequal sides - longer side has inward concavity, the two sides enclosing angle of 100 degs

Info

Publication number
FR2289833A1
FR2289833A1 FR7533070A FR7533070A FR2289833A1 FR 2289833 A1 FR2289833 A1 FR 2289833A1 FR 7533070 A FR7533070 A FR 7533070A FR 7533070 A FR7533070 A FR 7533070A FR 2289833 A1 FR2289833 A1 FR 2289833A1
Authority
FR
France
Prior art keywords
sides
longer side
degs
undulations
saw
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.)
Withdrawn
Application number
FR7533070A
Other languages
French (fr)
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.)
Rehau Plastiks GmbH
Original Assignee
Rehau Plastiks GmbH
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
Priority claimed from DE19742452104 external-priority patent/DE2452104C2/en
Application filed by Rehau Plastiks GmbH filed Critical Rehau Plastiks GmbH
Publication of FR2289833A1 publication Critical patent/FR2289833A1/en
Withdrawn legal-status Critical Current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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/111—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall with homogeneous wall

Abstract

The feature of unequal sides of the undulation and with the longer side having an inward concavity, ensure that the pipe, when pushed together, remains in this position, showing an apex of 10 deg.. The ratio of the non-undulated outside diameter to the outside diameter of the undulated part is 1:1,25. The outside diameter 14 and the inclination 16 of the undulation have a ratio of 2,5:1. The pipe can be pushed together to a length, which is 1/5-1/7 of the original length, resulting in a reduction of storing space. Once the undulated part is pushed together, the pipe can be bent and the bend stays in the required position. The pipe does not need any reinforcements or inserts to keep the bend in the required radius.
FR7533070A 1974-11-02 1975-10-29 Plastic hose has saw-like undulations with unequal sides - longer side has inward concavity, the two sides enclosing angle of 100 degs Withdrawn FR2289833A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742452104 DE2452104C2 (en) 1974-11-02 Tube or hose made of elastic plastic

Publications (1)

Publication Number Publication Date
FR2289833A1 true FR2289833A1 (en) 1976-05-28

Family

ID=5929899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7533070A Withdrawn FR2289833A1 (en) 1974-11-02 1975-10-29 Plastic hose has saw-like undulations with unequal sides - longer side has inward concavity, the two sides enclosing angle of 100 degs

Country Status (2)

Country Link
FR (1) FR2289833A1 (en)
SE (1) SE7512190L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467146A1 (en) * 1979-10-12 1981-04-17 Usinage Tubes Pour Electr Flexible bellows dispensing container - is made from sleeve to collapse to one fifth of volume when empty
WO2004074726A1 (en) * 2003-02-20 2004-09-02 Sanwin As A flexible pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467146A1 (en) * 1979-10-12 1981-04-17 Usinage Tubes Pour Electr Flexible bellows dispensing container - is made from sleeve to collapse to one fifth of volume when empty
WO2004074726A1 (en) * 2003-02-20 2004-09-02 Sanwin As A flexible pipe

Also Published As

Publication number Publication date
SE7512190L (en) 1976-05-03
DE2452104A1 (en) 1975-12-11
DE2452104B1 (en) 1975-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse