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US3887674A - Pipe part with a widened end - Google Patents

Pipe part with a widened end Download PDF

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Publication number
US3887674A
US3887674A US375154A US37515473A US3887674A US 3887674 A US3887674 A US 3887674A US 375154 A US375154 A US 375154A US 37515473 A US37515473 A US 37515473A US 3887674 A US3887674 A US 3887674A
Authority
US
United States
Prior art keywords
groove
pipe part
recess
shaped chamber
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
US375154A
Other languages
English (en)
Inventor
Albertus Anthony Oostenbrink
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.)
Wavin BV
Original Assignee
Wavin BV
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 Wavin BV filed Critical Wavin BV
Application granted granted Critical
Publication of US3887674A publication Critical patent/US3887674A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • F16L47/10—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket the sealing rings being maintained in place by additional means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/08—Belling or enlarging, e.g. combined with forming a groove using pressure difference
    • 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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/03—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
    • F16L17/032—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having only one lip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/218—Pipe machine: socket forming apparatus

Definitions

  • Such an abrupt transition from bottom to side wall can namely only be obtained by providing an annular raised part in the central part of the recess in which the groove-shaped chamber is formed, whereby the plastic material is just driven to the corners to thereby ensure an abrupt transition.
  • a pocket is advantageously formed in the groove bottom on the outer side thereof.
  • My invention relates likewise to a method for manufacturing a pipe part with widened end, in which is a circular groove-shaped chamber, by deforming a pipe part owing to inner overpressure and surrounding the deformed pipe part by a die with at least one recess with a substantially rectangular recess and related to the groove-shaped chamber to be formed.
  • Such a method is known per se but has the drawback that no abrupt transition from the groove bottom to be formed to the most inwards situated side wall can be obtained.
  • the circular raised part merges advantageously by rounded sides with the bottom of the recess.
  • My invention also relates to a formed pipe part obtained while performing the method according to the invention.
  • FIG. 1 shows a section through a pipe connection obtained by using a pipe part according to the invention
  • FIG. 2 shows a section through a die with a plastic pipe heated by blowing, which has adapted itself to the shape of the die, and
  • FIG. 3 shows a muff for connecting tube ends.
  • a pipe part is denoted by l with a widened end 2 in which is a circular groove-shaped chamber 3, the chamber being delimited by two lateral walls 4 and 5 and a bottom of the groove.
  • a sealing ring 7 In the groove-shaped chamber 3 is a sealing ring 7 to which is connected a sealing skirt 8 which penetrates into the recess 2 when a male pipe part 9 is slid into the pipe part 1.
  • the skirt 8 is provided with protrusions 8a which ensure a proper sealing between the widened part 2 and the penetrating pipe part 9.
  • a lock ring 10 with a substantially hoof-shaped cross-section the widest part of which cooperates with the wall 5 of the groove-shaped chamber 3.
  • the wall ends in an end part 11 the smallest diameter of which is smaller than the diameter of the widened part 2 of the pipe.
  • the ring 7 is formed in such a way that it contacts the lateral wall 4 of the groove-shaped chamber and the bottom 6 of the groove-shaped chamber, but on the other hand there rests a particular space between the wall 5 of the groove-shaped chamber 3 and the lateral wall 12 of the rubber ring 7.
  • thermoplastic pipe part 1 is deformed by means of a die 16.
  • This die 16 is provided with a recess 17 into which the plastic material of the pipe part 1 is pressed by blowing due to internal overpressure of air or another gas until the plastics has for the greater part contacted the inner wall of the recess 17. It is, however, very difficult to arrange that the plastic at the location of the point 13 contacts the junction 18 which would-be very desirable to obtain an abrupt transition from the bottom 6 of the groove to the lateral wall 4.
  • the bottom of the recess 17 is provided with a circular raised part 15, whereby when plastic material in heatdeformable condition is pressed, e.g., at a temperature ranging from to for polyvinylchloride, the synthetic material starts flowing in the direction of the junction 18 and as a consequence an abrupt transition is achieved.
  • a pocket which is likewise circular and denoted by 19, is formed on the outer side of the groove-shaped chamber 3.
  • FIG. 3 shows a muff for connecting two pipe ends.
  • the female ends 22 and 23 of the muff are separated by a collar 20 which may also be formed by a blowing technique.
  • the other parts are indicated by the same numerals as used in FIG. 1.
  • groove-shaped chamber comprising deforming a pipe part by introducing internal overpressure and surrounding the pipe part to be deformed by a die with at least one recess, forming the groove-shaped chamber deformed with a substantially rectangular crosssection, defining a recess in said pipe part, the bottom of which is provided with a circular raised part extending all round. and forming an all round extending raised part merging by rounded sides with the bottom of the recess.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Joints With Sleeves (AREA)
US375154A 1972-06-30 1973-06-29 Pipe part with a widened end Expired - Lifetime US3887674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7209102A NL7209102A (xx) 1972-06-30 1972-06-30

Publications (1)

Publication Number Publication Date
US3887674A true US3887674A (en) 1975-06-03

Family

ID=19816430

Family Applications (1)

Application Number Title Priority Date Filing Date
US375154A Expired - Lifetime US3887674A (en) 1972-06-30 1973-06-29 Pipe part with a widened end

Country Status (18)

Country Link
US (1) US3887674A (xx)
JP (1) JPS4957410A (xx)
AR (1) AR198420A1 (xx)
AU (1) AU464813B2 (xx)
BE (1) BE801421A (xx)
BR (1) BR7304872D0 (xx)
CA (1) CA997393A (xx)
DD (1) DD105045A5 (xx)
DE (1) DE2332807A1 (xx)
DK (1) DK133968B (xx)
ES (1) ES416436A1 (xx)
FR (1) FR2191053B3 (xx)
GB (1) GB1407895A (xx)
IE (1) IE38156B1 (xx)
IT (1) IT986242B (xx)
NL (1) NL7209102A (xx)
TR (1) TR17545A (xx)
ZA (1) ZA734451B (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006757A (en) * 1975-02-28 1977-02-08 Polva Nederland B.V. Pipe bell end having a thickened portion and apparatus for forming the bell end
US4275909A (en) * 1977-11-22 1981-06-30 Kubota Ltd. Flexible plastic pipe joint
US4474723A (en) * 1982-04-23 1984-10-02 Wavin B.V. Method and apparatus for providing a plastic pipe part with a socket end
US4723905A (en) * 1985-03-18 1988-02-09 Vassallo Research And Development Corporation Pipe belling apparatus
US5653935A (en) * 1994-06-03 1997-08-05 Forsheda Ab Method for manufacturing a thermoplastic pipe
US6874822B2 (en) * 2001-09-07 2005-04-05 Toyoda Gosei Co., Ltd. Resinous tube
US20090295153A1 (en) * 2008-05-27 2009-12-03 Springseal, Inc. Pipe coupling assembly
US8801049B2 (en) 2011-04-29 2014-08-12 Springseal, Inc. Pipe coupling system and method
US20170191598A1 (en) * 2014-05-22 2017-07-06 Schlemmer Gmbh Coupling arrangement for a domestic appliance, a device for a domestic appliance, and a domestic appliance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725579C3 (de) * 1977-06-07 1981-08-13 Karl Heinz 3353 Bad Gandersheim Vahlbrauk Vorrichtung zum Verbinden zweier Rohrenden
DE4108199C2 (de) * 1991-03-14 1995-01-05 Friatec Keramik Kunststoff Verbindungsanordnung einer Rohrleitung
DE202007015991U1 (de) * 2007-11-14 2009-03-19 Rehau Ag + Co Verbindungsbausatz

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747942A (en) * 1922-10-14 1930-02-18 Lanninger Karl Pipe line
US2953398A (en) * 1956-05-28 1960-09-20 United States Pipe Foundry Pipe joint
US2991092A (en) * 1957-07-05 1961-07-04 American Cast Iron Pipe Co Pipe coupling having a double sealing action gasket
US3791678A (en) * 1972-02-22 1974-02-12 Wavin Bv Pipe coupling
US3836622A (en) * 1971-07-01 1974-09-17 Forsheda Ideutveckling Ab Method of forming pipes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747942A (en) * 1922-10-14 1930-02-18 Lanninger Karl Pipe line
US2953398A (en) * 1956-05-28 1960-09-20 United States Pipe Foundry Pipe joint
US2991092A (en) * 1957-07-05 1961-07-04 American Cast Iron Pipe Co Pipe coupling having a double sealing action gasket
US3836622A (en) * 1971-07-01 1974-09-17 Forsheda Ideutveckling Ab Method of forming pipes
US3791678A (en) * 1972-02-22 1974-02-12 Wavin Bv Pipe coupling

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006757A (en) * 1975-02-28 1977-02-08 Polva Nederland B.V. Pipe bell end having a thickened portion and apparatus for forming the bell end
US4275909A (en) * 1977-11-22 1981-06-30 Kubota Ltd. Flexible plastic pipe joint
US4474723A (en) * 1982-04-23 1984-10-02 Wavin B.V. Method and apparatus for providing a plastic pipe part with a socket end
US4723905A (en) * 1985-03-18 1988-02-09 Vassallo Research And Development Corporation Pipe belling apparatus
US5653935A (en) * 1994-06-03 1997-08-05 Forsheda Ab Method for manufacturing a thermoplastic pipe
US6874822B2 (en) * 2001-09-07 2005-04-05 Toyoda Gosei Co., Ltd. Resinous tube
US20090295153A1 (en) * 2008-05-27 2009-12-03 Springseal, Inc. Pipe coupling assembly
US8727387B2 (en) * 2008-05-27 2014-05-20 Springseal, Inc. Pipe coupling assembly
US9752711B2 (en) 2008-05-27 2017-09-05 Springseal, Inc. Pipe coupling assembly
USD865918S1 (en) 2008-05-27 2019-11-05 Springseal, Inc. Coupling assembly
USD980954S1 (en) 2008-05-27 2023-03-14 Springseal, Inc. Coupling assembly
US8801049B2 (en) 2011-04-29 2014-08-12 Springseal, Inc. Pipe coupling system and method
US20170191598A1 (en) * 2014-05-22 2017-07-06 Schlemmer Gmbh Coupling arrangement for a domestic appliance, a device for a domestic appliance, and a domestic appliance
US10738930B2 (en) * 2014-05-22 2020-08-11 Schlemmer Gmbh Coupling arrangement for a domestic appliance, a device for a domestic appliance, and a domestic appliance

Also Published As

Publication number Publication date
BR7304872D0 (pt) 1974-08-29
FR2191053A1 (xx) 1974-02-01
IE38156B1 (en) 1978-01-04
AR198420A1 (es) 1974-06-21
DD105045A5 (xx) 1974-04-05
DE2332807A1 (de) 1974-01-17
ZA734451B (en) 1974-05-29
BE801421A (nl) 1973-12-26
GB1407895A (en) 1975-10-01
DK133968C (xx) 1977-01-31
DK133968B (da) 1976-08-23
AU5762273A (en) 1975-01-09
FR2191053B3 (xx) 1976-06-18
ES416436A1 (es) 1976-03-01
IT986242B (it) 1975-01-20
NL7209102A (xx) 1974-01-02
TR17545A (tr) 1975-07-23
IE38156L (en) 1973-12-30
JPS4957410A (xx) 1974-06-04
CA997393A (en) 1976-09-21
AU464813B2 (en) 1975-09-04

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