WO2012017373A1 - Collier de serrage - Google Patents

Collier de serrage Download PDF

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Publication number
WO2012017373A1
WO2012017373A1 PCT/IB2011/053408 IB2011053408W WO2012017373A1 WO 2012017373 A1 WO2012017373 A1 WO 2012017373A1 IB 2011053408 W IB2011053408 W IB 2011053408W WO 2012017373 A1 WO2012017373 A1 WO 2012017373A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular
semi
annular element
head side
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.)
Ceased
Application number
PCT/IB2011/053408
Other languages
English (en)
Inventor
Mario Bonino
Franco Prato
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.)
FAIC Srl
Original Assignee
FAIC Srl
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 FAIC Srl filed Critical FAIC Srl
Publication of WO2012017373A1 publication Critical patent/WO2012017373A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/32—Heating of pipes or pipe systems using hot fluids

Definitions

  • the present invention relates to a clamping collar for end flanges of pipes, composed of an annular element comprising a radially innermost annular edge and a radially outermost annular edge.
  • the radially innermost annular edge is intended to surround the pipe and it is connected to the radially outermost annular edge by a head side faced towards the end flange of the pipe and by a side opposite to the head side.
  • the head side is in turn composed of a radially inner annular band and of a radially outer annular band.
  • the head side is connected to the radially innermost annular edge by the radially inner annular band, while it is connected to the radially outermost annular edge by the radially outer annular band, at least the radially outer annular band being oriented according to a plane substantially perpendicular to the axis of the annular element.
  • the radially inner annular band cooperates with the side of the end flange of the pipe, which flange faces said head side, overlapping the flange in the clamping condition.
  • clamping collars are used which are fitted to the ends of each pipe at the end flanges of the pipe prior to the final positioning of the pipe within the plant, such to allow the flange to be clamped and at the same time to allow a pipe and another one to be connected.
  • the solution that provides to pre-assemble collars has also drawbacks related to the maintenance of the plant and to the replacement of one or more of the plant components in case of failures or malfunctions of the plant.
  • pipes have end flanges that provide the pipes with a greater diameter and which are put side by side by interposing a gasket.
  • the interfacing region is a critical region since it is very important that dust or other external agents do not gather near it which otherwise would cause food to be deteriorated.
  • the convey of some food inside the pipes can be performed only by melting the food to be conveyed by arranging, around the main pipe intended for conveying the food, conditioning pipes, particularly heating ones, inside which hot water flows, that keeps the food in the liquid condition by the dissipation of heat.
  • a further problem to be solved is therefore the fact of using clamping collars having small overall dimensions, while guaranteeing a high force in clamping the pipe.
  • the invention achieves the above aims by providing a clamping collar as described hereinbefore wherein the annular element constituting the clamping collar is divided into two complementary semi -annular elements, of which a first semi -annular element and a second semi -annular element, according to a transverse plane, preferably oriented perpendicular to the plane of the head side and passing by the diameter of the annular element.
  • the semi-annular elements can be coupled/uncoupled by removable fasteners in a condition with the annular element clamped or open with respect to the pipe respectively.
  • At the ends of each one of the two semi-annular elements there are provided two interfacing surfaces which are in contact each other when the two semi-annular elements are in the coupled condition.
  • the coupling of the first and second annular elements is such that the radially outermost edge when said two elements are in the coupled condition is composed of a continuous surface and/or a surface free from radial projections or protrusions.
  • Such constructional form allows the clamping collar to be fastened to the pipe after positioning the pipe itself into the plant and it does not necessarily require it to be pre-assembled as it occurs according to prior art known clamping collars.
  • the pipe is arranged in a predetermined position then the two semi-annular elements in the uncoupled and open condition are placed around the pipe, particularly at the end flange of the pipe, then they are coupled and brought in the clamping condition by using the removable fasteners.
  • the two semi -annular elements surround the pipe clamping it by the action of the removable fasteners and the head side of the annular element, composed of the two semi- annular elements, cooperates with the end flange of the pipe.
  • At least one screw is used as removable fasteners which engages a corresponding engaging seat, which is at least partially threaded, provided within the thickness of the annular element, secant to the radially outermost annular edge, which has an aperture for the insertion of the screw into the engaging seat.
  • the engaging seat is divided into two equal parts, one part for each semi-annular element, such that when the semi-annular elements are coupled, the two parts are coaxial such to form a single seat engaging the screw.
  • the engaging seat obtained into the thickness of the two semi-annular elements has, in the semi -annular element where the aperture for the insertion of the screw is provided, an abutment element for the head of the screw, while at least the other part of the engaging seat, provided in the thickness of the remaining semi -annular element, is threaded.
  • two screws with two corresponding engaging seats for guaranteeing the coupled and clamped condition of the two semi-annular elements; in this case the two seats will be one opposite each other into the thickness of the annular element, secant to the radially outermost annular edge near the ends of the two semi-annular elements.
  • apertures of the engaging seats of the screws are preferably provided at the same part and oriented downwardly such to prevent dust and agents from gathering in order to keep the environment surrounding the interfacing connection region of the pipes as more clean as possible and in order not to affect the operation or wear the screws.
  • the removable fasteners can be composed of a screw with a corresponding engaging seat as described previously, arranged near one of the two ends of the semi -annular elements, while at the other end there is provided an engaging hinge allowing the two semi -annular elements to pivot about an axis passing by the second end and consequently allowing the two semi-annular elements to be coupled by such pivotment .
  • the radially innermost annular band provided at the head side faced towards the end flange, has a radially outermost peripheral edge and a radially innermost peripheral edge, such that the radially inner annular band is connected by a projecting step to the radially outer band, such that the radially outer band projects with respect to the radially inner band by a specific amount towards the side of the end flange of the pipe facing said head side of the annular element.
  • the size of the projection of the radially outer band with respect to the radially inner band is equal to or slightly smaller than the thickness of the flange, the projection during the clamping action allows the collar to adhere against the end flange and the pipe not only by the radially innermost annular edge, but also by a portion of the head side such that such portion follows the profile of the side of the flange with which it cooperates that is faced towards the head side of the annular element.
  • the clamping collar of the present invention can have different shapes of the head side, since a portion of such side can have a profile exactly complementary to that of the end flange of the pipe with which it cooperates .
  • a preferred embodiment provides the clamping collar of the present invention to have a circular section and to have specific dimensions on the basis of the diameter of the pipe with which it will cooperate and/or on the basis of the dimensions of the inner diameter of the collar.
  • the clamping collar of the present invention has at least one through hole peprpendicular to the head side, which through hole passes through the head side and through the side opposite to said head side. This allows the annular element, constituting the collar, to be coupled to a further annular element having at least one through hole in a position corresponding to the hole of the previous annular element for the passage of a removable fastener.
  • the annular element overlaps the pipe and tightens the pipe by a diametral clamping action, that is by a force directed along an axis parallel to or passing by the diameter of the annular element, which axis is further perpendicular to the outer surface of the pipe, since the annular element preferably surrounds the pipe such that its diameter is perpendicular to the outer surface of the pipe.
  • the removable fastener acting for coupling the two annular elements is preferably composed of the combination of a screw with a nut allowing the two different head sides of the annular elements associated to two different pipes to be in contact with each other.
  • the head side and the side opposite to said head side can have at least one through hole for coupling the annular element to a further structure, such as a wall or a pipe supporting structure, having at least one through hole in a position corresponding to the hole of the annular element for the passage of a removable fastener.
  • the number of holes provided on the heas side can change and particularly such number can depend on the mechanical strenghts and on the clamping forces required, both relating to the connection of the pipes and to the force required for clamping the annular element to the end flange of the pipe.
  • the annular element, and consequently the two semi -annular elements are made of a metal material, that gives the collar of the present invention the mechanical properties necessary to accomplish the action clamping an end flange of a pipe and the action connecting different pipes.
  • the collar of the present invention is aside from the shape of the pipe cross-section, the annular element can surround pipes having circular section and/or with any other shapes, said annular element having said radially innermost edge with a shape corresponding to the shape of the section of said pipe.
  • the present invention relates also to a system for fastening pipe ends comprising at least two pipes, each of which pipes having an end with an end flange.
  • Each end flange cooperates with a corresponding clamping collar.
  • the clamping collar surrounds the pipe end to which it is associated and it is tightened around the corresponding flange.
  • the clamping collars act for keeping said at least two pipes in the connected position by means of removable fasteners that allow the clamping collars to be coupled.
  • Such system further provides the clamping collars to be made according to the characteristics described above and related to the clamping collar of the present invention.
  • the invention relates also to other characterstics further improving the clamping collar for end flanges of pipes mentioned above and that are the object of the subclaims .
  • fig.l is a view of the clamping collar of the present invention for end flanges of pipes according to a plane parallel to the head plane,
  • fig.2 is a section of a view of the clamping collar of the present invention for end flanges of pipes according to a section horizontal plane parallel to the head side,
  • fig.3 is a perspective view of the clamping collar of the present invention.
  • fig.4 is a perspective view of the clamping collar of the present invention.
  • fig.5 is a sectional view of an installation of the clamping collar of the present invention, intended for the connection of two pipes,
  • figs. 6a and 6b are a view of the installation of the clamping collar of the present invention for the connection of two pipes, particularly two pipes intended for conveying food.
  • Figures 1 to 4 show different views of the clamping collar of the present invention, composed of an annular element 1 comprising a radially innermost annular edge 11 and a radially outermost annular edge 12.
  • the radially innermost annular edge 11 is intended to surround the pipe and it is connected to the radially outermost annular edge 12 by a head side faced towards the end flange of the pipe and by a side opposite to said head side.
  • the head side is composed of a radially inner annular band 13 and a radially outer annular band 14.
  • the head side is connected to the radially inner annular edge 11 by the radially innermost annular band
  • the radially inner annular band 13 cooperates with the side of the flange facing the head side, by overlapping the flange in the clamped condition.
  • the annular element 1 is divided into two complementary semi-annular elements 2 and 3, of which a first semi-annular element 2 and a second semi -annular element 3, according to a transverse plane, particularly a plane passing by the diameter of the annular element 1 perpendicular to the head side and particularly to the radially outer annular band 14.
  • Such transverse plane divides the annular element 1 into two semi-annular elements 2 and 3 that are equal to each other and symmetrical with respect to the plane itself .
  • the semi -annular elements 2 and 3 can be coupled/uncoupled with respect to each other and, with a particular reference to figures 1 to 4, the two semi- annular elements 2 and 3 are coupled in a clamping condition in relation to the pipe 4 in which clamping condition the ends of each of the two semi -annular elements, composed of interfacing surfaces, are in contact by means of removable fasteners.
  • FIGS. 1 to 4 show how the two semi -annular elements 2 and 3, by the connection of the respective radially outermost annular edges, are fastened in place such that the whole surface of the radially outermost annular edge 12 of the annular element 1, is composed of a continuous surface, having no discontinuity elements that can cause dust to be collected and the size of the collar to increase.
  • Removable fasteners are composed of two screws 51 engaging into corresponding engaging seats 52.
  • Each engaging seat 52 is at least partially threaded and is provided within the thickness of the annular element 1, secant to the radially outermost annular edge 12, which has an aperture 53 for the insertion of the screw 51 into said engaging seat 52.
  • the engaging seat 52 is divided into two equal parts 521 and 522, a part for each semi-annular element 2 and 3 such that with the semi -annular elements 2 and 3 in the coupled condition the two parts 521 and 522 are coaxial such to form a single engaging seat 52 to house the screw 51 into the thickness of both the semi-annular elements 2 and 3.
  • FIG. 2 shows a section of the collar of the present invention according to a section horizontal plane parallel to the head side.
  • the two semi-annular elements 2 and 3 are in the coupled condition and the annular element 1 provides two engaging seats 52 and two screws 51.
  • the engaging seats 52 are divided into two equal parts 521 and 522 one for each semi -annular element 2 and 3, one 522 of them is threaded, while the other part 521 has an abutment element 523 fot eh head of the screw 51.
  • the position of the engaging seats 52 with the corresponding screws 51 can be any position within the thickness of the annular element 1, particularly in the figures the two engaging seats 52 are provided with the axis passing through the interfacing surfaces provided at the ends of the two semi-annular elements 2 and 3, which axis is perpendicular both to the interfacing surfaces and to the transverse axis that divide the annular element 1 into two equal semi-annular elements 2 and 3.
  • the annular element 1 has a radially inner annular band 13 , provided on the head side faced towards the end flange, which annular flange 13 has a radially outermost peripheral edge connected to a projecting step 19, such that the radially outer annular band 14 projects with respect to the radially inner band 13 by a specific amount towards the side of the flange facing said head side.
  • the radially outer band 14 of the annular element 1 has six through holes 17 perpendicular to the head side, passing through the head side and the side opposite thereto such to allow the annular element 1 to be coupled to a further annular element 6.
  • Figures 1 shows six diametrally opposite holes that are symmetrical in pairs and evenly arranged, that is in a manner that the distance between any hole 17 and the closest one is equal and corresponding to the distance between the holes closest to the ends of the semi-annular elements 2 and 3 and the ends themselves.
  • the semi -annular elements 2 and 3 are made of metal material and the radially outer band 14 is mirror polished by a mechanical treatment such to lead to the greatest contact surface between the annular element 1 and a further annular element 6.
  • Figures 1 to 4 show the clamping collar of the present invention always with a circular section, but it can be provided of any shape, particularly with the shape of the pipe it cooperates with.
  • the clamping collar in the variant embodiment shown providing a circular shaped section, it is possible preferably for the clamping collar to have precise dimensions, that is to have a ratio of the outer diameter to the inner diameter that changes on the basis of the size of the pipe.
  • a fixed ratio of the inner diameter A of the collar, the diameter B of the radially outermost annular band 13 and the diameter C of the radially outermost annular band 14 that coincides with the outer diameter of the annular element 1 is defined.
  • the size of the inner diameter A corresponds to the size of the diameter of the section of the pipe that cooperates with the clamping collar.
  • the ratio of the inner diameter A to the diameter B of the annular band 13 is a number ranging from 1,2 to 0,4, preferably from 1 to 0,6, particularly from 0,9 to 0,7.
  • the ratio of the diameter B of the radially inner annular band 13 to the diameter C of the annular element 1 is a number ranging from 1,2 to 0,2, preferably from 1 to 0,4, particularly from 0,8 to 0,6.
  • FIG. 5 shows a sectional view of the clamping collar of the present invention where the annular element 1 is coupled to a further annular element 6 and surrounds a pipe 4, particularly the end flange of a pipe 41.
  • the semi-annular elements 2 and 3 are coupled one with the other in the condition clamping the pipe 4 by the use of the screws 51 engaging into the corresponding engaging seats 52 and bring the interfacing surfaces provided at the ends of the semi- annular elements 2 and 3 in contact such that the radially innermost annular edge 11 surrounds the pipe 4 and particularly the head side with the radially inner annular band 13 cooperates with the end flange 41 of the pipe 4, in the clamping condition, following the profile thereof.
  • the radially inner annular band 13 has a radially outermost peripheral edge connected to a projecting step 19, such that the radially outer band 14 projects with respect to the radially inner band 13 by a specific amount towards the side of the flange 41 facing said head side.
  • the dimension of the projection of the radially outer band 14 with respect to the radially inner band 13 is equal to the thickness of the flange 41, the projection during the clamping action allows the collar to adhere against the end flange 41 and the pipe 4 not only by the radially innermost annular edge 11, but also by a portion of the head side such that such portion follows the profile of the flange 41 with which it cooperates.
  • the annular element 1 overlaps the pipe 4 and tightens the pipe 4 by a diametral clamping action, that is by a force directed along an axis parallel to or passing by the diameter of the annular element 1, which axis is further perpendicular to the outer surface of the pipe 4, since the annular element 1 surrounds the pipe 4 such that its diameter is perpendicular to the outer surface of the pipe 4.
  • the removable fasteners are composed of the connection of a screw 20 with a nut 21 allowing two different head sides of the annular elements 1 and 6 associated to two different pipes to be in contact with each other.
  • a variant embodiment provides the screw 20 and the nut 21 to pass through the thickness of the clamping collars 1 and 6, and to be "flush" , namely the ends of the screw 20 and of the nut 21 are coplanar to the plane identified by the side opposite to the head side of each clamping collar 1 and 6.
  • the number of such holes 17 is variable and it depends on the mechanical strengths and on the clamping forces required, both relating to the connection of the pipes and to the force required for clamping the annular element to the end flange of the pipe, therefore the even arrangement of the holes 17 in figure 1 allows in turn the forces acting between the two annular elements 1 and 6 to be evenly arranged along the whole volume of the annular elements.
  • Each end flange 41 cooperates with a corresponding clamping collar.
  • the clamping collar surrounds the pipe end to which it is associated and it is clamped around the corresponding flange 41.
  • the clamping collars act for keeping said at least two pipes 4 in the connected position by means of removable fasteners 20 and 21 that allow the clamping collars to be coupled.
  • Such system further provides the clamping collars to be made according to the characteristics described above and related to the clamping collar of the present invention.
  • Figures 6a and 6b show a view of the installation of the clamping collar of the present invention for the connection of two pipes, particularly two pipes intended to convey food
  • figures 6a is a section taken along the longitudinal plane of the pipe 4, like figure 5, while figure 6b is a perspective view of said installation.
  • Pipes 4 intended to convey food are often put beside conditioning pipes, particularly heating pipes 8, inside which hot water flows intended to maintain the food flowing into the pipe 4 in the liquid condition such that it can flow more easily inside the pipe.
  • Figures 6a and 6b show how the clamping collar of the present invention is installed for piping plants intended to convey food.
  • the semi -annular elements 2 and 3, in the coupling condition surround the pipe 4, forming the annular element 1 that cooperates with the end flange 41 of the pipe 4 by the radially innermost annular band 13.
  • the small dimensions of the annular element 1 and the proper positioning the conditioning pipes 8, allows the dimensions of the outer casing 9 enclosing the whole plant to be optimized.
  • the pipes 8 are arranged with their longitudinal axis parallel to the longitudinal axis of the pipe 4 and around the circumference of the pipe 4, or equidistant one another, as in figure 6b, or underneath the pipe 4.
  • FIGS. 6a and 6b show a system for fastening pipe ends, wherein each one of the end flanges 41 of pipes 4 are surrounded by at least a conditioning pipe 8, arranged substantially parallel to the pipe 4 at a certain distance therefrom.
  • the distance of pipes 8 from the pipe 4 is such that it is slightly greater than the thickness of the collar, that is greater than the dimension of the head side of the collar.
  • the distance of the pipe 4 from the pipes 8 will be calculable on the basis of the dimensions mentioned above that relate the dimension of the inner diameter of the annular element 1 constituting the collar, to the outer diameter thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Finger-Pressure Massage (AREA)
  • Dowels (AREA)

Abstract

La présente invention concerne un collier de serrage destiné aux rebords d'extrémité de tuyaux ; il se compose d'un élément annulaire (1) comprenant un bord annulaire interne en sens radial (11) et un bord annulaire externe en sens radial (12), un côté de tête faisant face au rebord d'extrémité du tuyau et un côté opposé au côté de tête. Le côté de tête se compose en outre d'une bande annulaire interne en sens radial (13) au moyen de laquelle le côté de tête est relié au bord annulaire interne en sens radial et d'une bande annulaire externe de façon radiale (14) orientée selon un plan sensiblement perpendiculaire à l'axe de l'élément annulaire. En outre, l'élément annulaire (1) constituant le collier de serrage est divisé en deux éléments semi-annulaires complémentaires, selon un plan transversal, de préférence un plan diamétral. De tels éléments semi-annulaires peuvent être couplés/désaccouplés par des fermoirs amovibles.
PCT/IB2011/053408 2010-08-03 2011-08-01 Collier de serrage Ceased WO2012017373A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITGE2010A000088A IT1401437B1 (it) 2010-08-03 2010-08-03 Collarino di serraggio.
ITGE2010A000088 2010-08-03

Publications (1)

Publication Number Publication Date
WO2012017373A1 true WO2012017373A1 (fr) 2012-02-09

Family

ID=43739473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/053408 Ceased WO2012017373A1 (fr) 2010-08-03 2011-08-01 Collier de serrage

Country Status (2)

Country Link
IT (1) IT1401437B1 (fr)
WO (1) WO2012017373A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109093643A (zh) * 2018-09-19 2018-12-28 广东工业大学 一种对开式半椭圆卡环的机器人连接组件
CN110345177A (zh) * 2019-07-17 2019-10-18 雷沃重工股份有限公司 一种盘式制动器以及控制方法
CN114593288A (zh) * 2022-03-17 2022-06-07 浙江欧泰游乐设备有限公司 法兰连接结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372587A (en) * 1979-11-26 1983-02-08 Uni-Flange Corporation Adapter flange
DE3702949A1 (de) 1987-01-31 1988-08-11 Agintec Ag Rohrkupplung
EP0396151A2 (fr) * 1989-05-05 1990-11-07 Platzer Schwedenbau GmbH Procédé pour fabriquer une connexion de bride de tuyau
GB2299598A (en) * 1995-04-07 1996-10-09 Weatherford Lamb Apparatus for use in a wellbore
DE10203854A1 (de) * 2002-01-31 2003-08-07 Eisenwerke Fried Wilh Dueker A Losflansch
WO2007123306A1 (fr) * 2006-04-20 2007-11-01 Fixon Construction Co., Ltd. Structure de raccordement de tuyau métallique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750762A (en) * 1987-01-12 1988-06-14 Corzine George S Axially split clamp for push-on couplings

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372587A (en) * 1979-11-26 1983-02-08 Uni-Flange Corporation Adapter flange
DE3702949A1 (de) 1987-01-31 1988-08-11 Agintec Ag Rohrkupplung
EP0396151A2 (fr) * 1989-05-05 1990-11-07 Platzer Schwedenbau GmbH Procédé pour fabriquer une connexion de bride de tuyau
GB2299598A (en) * 1995-04-07 1996-10-09 Weatherford Lamb Apparatus for use in a wellbore
DE10203854A1 (de) * 2002-01-31 2003-08-07 Eisenwerke Fried Wilh Dueker A Losflansch
WO2007123306A1 (fr) * 2006-04-20 2007-11-01 Fixon Construction Co., Ltd. Structure de raccordement de tuyau métallique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109093643A (zh) * 2018-09-19 2018-12-28 广东工业大学 一种对开式半椭圆卡环的机器人连接组件
CN110345177A (zh) * 2019-07-17 2019-10-18 雷沃重工股份有限公司 一种盘式制动器以及控制方法
CN110345177B (zh) * 2019-07-17 2024-02-06 潍柴雷沃智慧农业科技股份有限公司 一种盘式制动器以及控制方法
CN114593288A (zh) * 2022-03-17 2022-06-07 浙江欧泰游乐设备有限公司 法兰连接结构

Also Published As

Publication number Publication date
ITGE20100088A1 (it) 2012-02-04
IT1401437B1 (it) 2013-07-26

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