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FR2862736A1 - Sealing bellows for component such as pipe passing through wall of thermally insulated housing has layers of glass fibre fabric at ends - Google Patents

Sealing bellows for component such as pipe passing through wall of thermally insulated housing has layers of glass fibre fabric at ends Download PDF

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Publication number
FR2862736A1
FR2862736A1 FR0452754A FR0452754A FR2862736A1 FR 2862736 A1 FR2862736 A1 FR 2862736A1 FR 0452754 A FR0452754 A FR 0452754A FR 0452754 A FR0452754 A FR 0452754A FR 2862736 A1 FR2862736 A1 FR 2862736A1
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FR
France
Prior art keywords
bellows
wall
pipe
layers
fabric
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.)
Granted
Application number
FR0452754A
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French (fr)
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FR2862736B1 (en
Inventor
Ralf Schanda
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.)
Linde GmbH
Original Assignee
Linde 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
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of FR2862736A1 publication Critical patent/FR2862736A1/en
Application granted granted Critical
Publication of FR2862736B1 publication Critical patent/FR2862736B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • F16J3/042—Fastening details
    • 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
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/025—Sealing the pipe being movable
    • 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
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/10—Sealing by using sealing rings or sleeves only
    • 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
    • F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
    • F16L59/121—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies for pipes passing through walls or partitions

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The bellows, made with an intermediate tubular portion (6) of a polymer fabric, has one or both ends (4, 5) equipped with at least three layers of rubber-coated glass fibre fabric (8, 9, 11).

Description

contact entre la conduite ou tuyau froid et la matière du soufflet,contact between the pipe or cold pipe and the material of the bellows,

fissures capillaires qui peuvent créer des défauts d'étanchéité.  capillary cracks that can create leaks.

But de l'invention La présente invention a pour but de développer un soufflet convenant tout particulièrement pour réaliser également l'étanchéité d'une conduite refroidie à très basse température traversant la paroi d'un boîtier à isolation thermique.  OBJECT OF THE INVENTION The object of the present invention is to develop a bellows that is particularly suitable for also sealing a pipe cooled at a very low temperature through the wall of a thermally insulated housing.

Exposé et avantages de l'invention A cet effet, l'invention concerne un soufflet du type défini ci-dessus, caractérisé en ce qu'au moins une de ses extrémités est munie de plusieurs couches d'un tissu de fibres de verre.  DESCRIPTION AND ADVANTAGES OF THE INVENTION For this purpose, the invention relates to a bellows of the type defined above, characterized in that at least one of its ends is provided with several layers of a fiberglass fabric.

Le soufflet selon l'invention a de manière habituelle une forme tubulaire et une extrémité du tuyau est reliée à la pièce traversant la paroi du boîtier à isolation thermique, en particulier une conduite à très basse température et l'autre extrémité est reliée à la paroi du boîtier. La paroi du boîtier est munie en général d'un ajutage sur lequel on emmanche l'extrémité du soufflet pour la relier de façon étanche.  The bellows according to the invention usually has a tubular shape and one end of the pipe is connected to the part passing through the wall of the thermally insulated casing, in particular a pipe at very low temperature and the other end is connected to the wall. of the case. The wall of the housing is generally provided with a nozzle on which the end of the bellows is wired to connect it tightly.

Selon l'invention, dans la zone de contact avec la pièce et/ou avec le branchement avec la paroi de la boîte froide, le soufflet est muni d'un tissu tampon. Pour cela, dans cette zone de contact, on applique plusieurs couches d'un tissu de fibres de verre sur la matière du soufflet. Entre les différentes couches de tissu il se forme de petites cavités permettant de compenser les coefficients de dilatation thermique différents de la matière du soufflet et de la pièce.  According to the invention, in the zone of contact with the part and / or with the connection with the wall of the cold box, the bellows is provided with a buffer fabric. For this, in this contact zone, several layers of a fiberglass fabric are applied to the material of the bellows. Between the different layers of fabric small cavities are formed to compensate for the different coefficients of thermal expansion of the material of the bellows and the workpiece.

En particulier, la zone de contact du soufflet avec la pièce traversant la paroi est munie de la couche tampon selon l'invention composée de plusieurs couches de tissu de fibres de verre. Mais on a égale-ment constaté qu'il était tout aussi avantageux de munir l'autre extrémité du soufflet dans la zone de contact avec la paroi du boîtier d'isolation thermique ou d'un ajutage de raccordement correspondant avec une telle couche tampon.  In particular, the contact zone of the bellows with the piece passing through the wall is provided with the buffer layer according to the invention composed of several layers of fiberglass fabric. But it has also been found that it was equally advantageous to provide the other end of the bellows in the zone of contact with the wall of the thermal insulation box or a corresponding connection nozzle with such a buffer layer.

Le tissu de fibres de verre appliqué comme couche tampon à l'extrémité du soufflet est de préférence revêtu en outre de caoutchouc.  The glass fiber fabric applied as a buffer layer at the end of the bellows is preferably further coated with rubber.

Il s'est avéré intéressant d'utiliser si possible trois ou plu- sieurs couches de tissu de fibres de verre dans la zone de contact de l'extrémité du soufflet et de la pièce ou de la paroi du boîtier. Les cavités ainsi formées dans la couche de tissu à trois ou plusieurs nappes, forment une couche tampon souple, permettant de compenser les coefficients de dilatation thermique différents de la pièce et de la matière du soufflet.  It has been interesting to use, if possible, three or more layers of fiberglass cloth in the contact area of the bellows end and the housing part or wall. The cavities thus formed in the three or more layer of tissue layer form a flexible buffer layer, making it possible to compensate for the different coefficients of thermal expansion of the part and the material of the bellows.

La partie intermédiaire tubulaire du soufflet est réalisée de préférence en un tissu d'aramide et selon un mode de réalisation particu- lièrement avantageux, le tissu d'aramide est en outre revêtu de caoutchouc de silicone. Les couches de tissu de fibres de verre sont collées ou cousues en général au soufflet.  The tubular intermediate portion of the bellows is preferably made of aramid fabric and according to a particularly advantageous embodiment, the aramid fabric is further coated with silicone rubber. The fiberglass fabric layers are usually glued or sewn to the bellows.

La présente invention est particulièrement intéressante pour faire passer des conduites refroidies à très basse température à travers les parois d'une boîte froide d'installations techniques comme par exemple d'installation de décomposition d'air à très basse température. En outre l'utilisation de l'invention dans la construction de réservoirs permet d'optimiser des passages refroidis à très basse température. L'étanchéité selon l'invention est également étanche aux gaz pour des températures cryogéniques et c'est pourquoi on peut également l'utiliser dans des applications d'enveloppes sous vide.  The present invention is particularly interesting for passing cooled pipes at very low temperatures through the walls of a cold box of technical installations such as air decomposition installation at very low temperature. In addition, the use of the invention in the construction of tanks makes it possible to optimize passages cooled at very low temperature. The seal according to the invention is also gastight for cryogenic temperatures and therefore can also be used in vacuum envelope applications.

Vis-à-vis des moyens d'étanchéité habituels, l'invention offre des avantages importants. Les branches habituelles de dilatation équipant les conduites tubulaires pour compenser les variations de longueurs liées à la température peuvent ainsi être supprimées ou du moins être ré-duites au minimum, ce qui se traduit par une économie significative de matière. L'étanchéité selon l'invention est étanche aux gaz et elle évite en outre la sortie de la perlite fréquemment utilisée comme matière d'isolation dans une boîte froide.  With respect to the usual sealing means, the invention offers important advantages. The usual branches of expansion fitted to the tubular conduits to compensate for variations in lengths related to the temperature can thus be suppressed or at least be reduced to a minimum, which results in a significant saving of material. The seal according to the invention is gastight and it also avoids the output of perlite frequently used as insulation material in a cold box.

Dessins La présente invention sera décrite ci-après de manière plus détaillée à l'aide d'exemples de réalisation représentés schématiquement dans les dessins annexés dans lesquels: - l'unique figure montre une étanchéité selon l'invention pour le passage 30 d'une conduite à très basse température à travers une paroi de boîte froide.  Drawings The present invention will be described hereinafter in more detail with the aid of embodiment examples shown schematically in the accompanying drawings in which: - the single figure shows a seal according to the invention for the passage of a driving at very low temperatures through a cold box wall.

Description de modes de réalisation  Description of embodiments

La figure montre un soufflet selon l'invention utilisé pour le passage d'une conduite 1 refroidie à très basse température à travers l'enveloppe 2 d'une boîte froide d'une installation technique. L'enveloppe 2 de la boite froide est munie d'un ajutage 3 traversé par la conduite 1. Le soufflet selon l'invention est utilisé pour assurer l'étanchéité du passage.  The figure shows a bellows according to the invention used for the passage of a pipe 1 cooled at a very low temperature through the casing 2 of a cold box of a technical installation. The casing 2 of the cold box is provided with a nozzle 3 crossed by the pipe 1. The bellows according to the invention is used to seal the passage.

Le soufflet a une structure symétrique en rotation et ses deux extrémités 4, 5 sont reliées l'une à l'ajutage 3 de la boîte froide et l'autre au tuyau 1. Entre les deux pièces de raccordement 4, 5 se trouve la partie tubulaire 6 du soufflet permettant un mouvement relatif du tuyau 1 par rapport à l'ajutage de raccordement 3 dans la direction de l'axe de rotation du soufflet.  The bellows has a symmetrical structure in rotation and its two ends 4, 5 are connected one to the nozzle 3 of the cold box and the other to the pipe 1. Between the two connecting pieces 4, 5 is the part tubular 6 of the bellows allowing a relative movement of the pipe 1 relative to the connecting nozzle 3 in the direction of the axis of rotation of the bellows.

Comme matière pour la réalisation du soufflet il est intéressant d'utiliser un tissu d'aramide revêtu de caoutchouc de silicone. En particulier, les joints des coutures et les arêtes du soufflet sont revêtus de caoutchouc de silicone.  As a material for producing the bellows, it is advantageous to use an aramid fabric coated with silicone rubber. In particular, the seams of the seams and the edges of the bellows are coated with silicone rubber.

Une extrémité 4 du soufflet est glissée par-dessus l'ajutage 3 et est reliée de manière étanche à celui-ci par exemple à l'aide d'un col-lier 7. Au niveau du raccordement du soufflet à l'ajutage 3, on dispose une couche intermédiaire 8 en tissu de verre entre la matière 4 du soufflet et l'ajutage de raccordement 3 ainsi qu'entre la matière du soufflet 4 et le collier 7.  One end 4 of the bellows is slid over the nozzle 3 and is sealingly connected thereto for example by means of a collar 7. At the bellows connection to the nozzle 3, an intermediate layer 8 made of glass cloth is placed between the material 4 of the bellows and the connecting nozzle 3 as well as between the material of the bellows 4 and the collar 7.

L'autre extrémité 5 du soufflet assure la liaison avec la con-duite 1- et est reliée par un collier 10 de manière étanche à la conduite 1; une couche de tissu de verre 11 est également prévue entre l'extrémité 5 du soufflet et le collier 10.  The other end 5 of the bellows provides the connection with the con-duct 1 and is connected by a collar 10 sealingly to the pipe 1; a layer of glass fabric 11 is also provided between the end 5 of the bellows and the collar 10.

Pour compenser les contraintes thermiques, une couche tampon 9 est collée sur le côté intérieur de l'extrémité 5 du soufflet. La couche tampon 9 est formée de trois nappes d'une épaisseur de l'ordre de 1 mm de tissu de fibres de verre; ces nappes sont munies chacune d'un revêtement de surface d'une épaisseur de 0,5 mm en caoutchouc. La couche tampon 9 est collée à l'extrémité 5 du soufflet et ses dimensions sont telles qu'indépendamment de la position relative de la conduite 1 par rapport à la paroi 2 de la boîte froide, elle assure toujours que le tissu d'aramide 6 du soufflet n'arrive pas en contact avec la conduite 1. Par exemple la couche tampon 9 présente dans la direction de l'axe longitudinal de la conduite 1 une longueur sensiblement triple de celle de la couche de tissu de verre 11.  To compensate for thermal stresses, a buffer layer 9 is glued on the inner side of the end 5 of the bellows. The buffer layer 9 is formed of three plies with a thickness of the order of 1 mm of fiberglass fabric; these sheets are each provided with a surface coating with a thickness of 0.5 mm of rubber. The buffer layer 9 is bonded to the end 5 of the bellows and its dimensions are such that regardless of the relative position of the pipe 1 relative to the wall 2 of the cold box, it always ensures that the aramid fabric 6 the bellows does not come into contact with the pipe 1. For example the buffer layer 9 has in the direction of the longitudinal axis of the pipe 1 a length substantially triple that of the layer of glass fabric 11.

En refroidissant la conduite 1 par exemple par le passage d'un fluide cryogénique, on a une variation de longueur liée à la tempéra- ture ou contraction de la conduite 1. L'enveloppe 2 de la boîte froide est en revanche toujours à la température ambiante. Le retrait thermique de la conduite 1 se traduit par conséquent par un mouvement relatif de la con-duite 1 par rapport à l'ajutage 3 de la boîte froide.  By cooling the pipe 1 for example by the passage of a cryogenic fluid, there is a variation in length related to the temperature or contraction of the pipe 1. The envelope 2 of the cold box is however always at the temperature room. The thermal shrinkage of the pipe 1 therefore results in a relative movement of the con-duct 1 relative to the nozzle 3 of the cold box.

Ce mouvement relatif est absorbé par la partie intermédiaire 6 tubulaire élastique du soufflet. Au niveau du contact direct du soufflet et de la conduite 1, à savoir à l'extrémité 5 du soufflet, on prend en compte les coefficients de dilatation thelliiique très différents du métal, de la matière de la conduite 1 et du tissu d'aramide revêtu de caoutchouc dont est fabriqué le soufflet 4, 5, 6.  This relative movement is absorbed by the elastic tubular intermediate portion 6 of the bellows. At the level of the direct contact of the bellows and the pipe 1, namely at the end 5 of the bellows, one takes into account the thielic expansion coefficients very different from the metal, the material of the pipe 1 and the aramid fabric. covered with rubber of which the bellows 4, 5, 6 is made.

Pour cette raison, l'extrémité 5 du soufflet est munie d'une couche tampon 9 selon l'invention. Entre les couches de tissu constituant la couche tampon 9 on a des cavités qui participent à l'isolation thermique to du tissu d'aramide de la conduite 1 à très basse température et de plus elles compensent la dilatation thermique fortement différente du tissu d'aramide et de la conduite 1.  For this reason, the end 5 of the bellows is provided with a buffer layer 9 according to the invention. Between the layers of fabric constituting the buffer layer 9 are cavities which participate in the thermal insulation to aramid fabric of the pipe 1 at very low temperature and moreover they compensate for the thermal expansion significantly different from the aramid fabric and driving 1.

Claims (7)

REVENDICATIONS 1 ) Soufflet pour réaliser l'étanchéité d'une pièce traversant une paroi d'un boîtier à isolation thermique d'une installation technique, le soufflet comportant une pièce intermédiaire en forme de tuyau, une extrémité du soufflet reliée à la pièce et l'autre extrémité du soufflet reliée à la paroi du boîtier, caractérisé en ce qu' au moins une extrémité (5) du soufflet est munie de plusieurs couches de tissu de fibres de verre (9). Io  1) Bellows for sealing a piece passing through a wall of a thermally insulated housing of a technical installation, the bellows comprising an intermediate piece in the form of a pipe, an end of the bellows connected to the workpiece and the another end of the bellows connected to the wall of the housing, characterized in that at least one end (5) of the bellows is provided with a plurality of layers of fiberglass fabric (9). io 2 ) Soufflet selon la revendication 1, caractérisée en ce que ses deux extrémités (4, 5) sont munies de plusieurs couches d'un tissu de fibres de verre (9).  2) bellows according to claim 1, characterized in that its two ends (4, 5) are provided with several layers of a fiberglass fabric (9). 3 ) Soufflet selon l'une des revendications 1 ou 2, caractérisé en ce que le tissu de fibres de verre (9) est revêtu de caoutchouc.  3) bellows according to one of claims 1 or 2, characterized in that the fiberglass fabric (9) is coated with rubber. 4 ) Soufflet selon l'une des revendications 1 à 3,  4) bellows according to one of claims 1 to 3, caractérisé en ce qu' une ou les deux extrémités (4, 5) du soufflet sont munies d'au moins trois couches de tissu de fibres de verre (9).  characterized in that one or both ends (4, 5) of the bellows are provided with at least three layers of glass fiber fabric (9). 5 ) Soufflet selon l'une des revendications 1 à 4, caractérisé en ce que la partie centrale (6) en forme de tuyau est un tissu d'aramide.  5) bellows according to one of claims 1 to 4, characterized in that the central portion (6) in the form of a pipe is an aramid fabric. 6 ) Soufflet selon la revendication 5, 30 caractérisé en ce que le tissu d'aramide (6) est revêtu de caoutchouc de silicone.  6) bellows according to claim 5, characterized in that the aramid fabric (6) is coated with silicone rubber. 7 ) Utilisation d'un soufflet selon l'une des revendications 1 à 6, pour réaliser l'étanchéité d'une conduite (1) refroidie à très basse température tra- versant la paroi (2) d'un boîtier à isolation thermique, notamment d'une boîte froide.  7) Use of a bellows according to one of claims 1 to 6, for sealing a pipe (1) cooled at a very low temperature across the wall (2) of a thermally insulated housing, including a cold box.
FR0452754A 2003-11-26 2004-11-25 BELLOW FOR REALIZING THE SEALING OF A PART THROUGH THE WALL OF A THERMALLY INSULATED HOUSING Expired - Fee Related FR2862736B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003155213 DE10355213A1 (en) 2003-11-26 2003-11-26 Pipe routing hole

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FR2862736A1 true FR2862736A1 (en) 2005-05-27
FR2862736B1 FR2862736B1 (en) 2006-12-01

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FR (1) FR2862736B1 (en)

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WO2007049980A1 (en) * 2005-10-27 2007-05-03 Andrew Leo Haynes A peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end.
FR2959792A1 (en) * 2010-05-05 2011-11-11 Alstom Technology Ltd Case for ensuring sealing of wall around opening for allowing passage of crossing tube of heat exchanger for e.g. pressure type boiler in power station, has connection element between front and rear parts to surround tubes of case
WO2012110568A1 (en) * 2011-02-18 2012-08-23 Airbus Operations Gmbh Arrangement for passing a line in a load-free manner through a pressure frame of a fuselage of an aircraft or spacecraft
US9206928B2 (en) 2012-09-21 2015-12-08 Lake Products Limited Sealing gland
US9581271B2 (en) 2013-08-23 2017-02-28 Lake Products Limited Sealing gland
US9951890B2 (en) 2015-08-24 2018-04-24 Lake Products Limited Sealing gland
USD840516S1 (en) 2006-09-11 2019-02-12 Lake Products Limited Sealing gland
CN109667991A (en) * 2017-10-17 2019-04-23 德尔格制造股份两合公司 Sealing device and medical instrument at least one sealing device
CN111173996A (en) * 2020-01-24 2020-05-19 杭州制氧机集团股份有限公司 Novel heat preservation of cryopump box outlet pipe device
USD958305S1 (en) 2006-05-18 2022-07-19 Lake Products Limited Sealing gland

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DE102006025914A1 (en) * 2006-06-02 2007-12-06 Lessing, Jürgen Insulating unit for e.g. housing, of e.g. commercial refrigerator, has access opening and supply openings provided with sealing devices, where insulating housing is closed by access opening in vapor diffusion resistant manner
WO2020009913A1 (en) 2018-07-05 2020-01-09 Durr UNIVERSAL, Inc. Expansion and movement joints
NO344125B1 (en) * 2018-11-09 2019-09-09 Roge As Bellow

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US3240234A (en) * 1960-02-24 1966-03-15 Union Carbide Corp Hose for low-temperature liquids
US3737372A (en) * 1970-04-10 1973-06-05 Commissariat Energie Atomique Installation for surveying the displacement of a structure in a nuclear reactor
EP0127432A2 (en) * 1983-05-24 1984-12-05 The Bentley-Harris Manufacturing Co. Article for protecting substrates
DE4007862A1 (en) * 1989-03-25 1990-09-27 Parabeam Ind & Handels Bv Bellows material - is an uncut double pile weave
US5617900A (en) * 1993-07-20 1997-04-08 Davlyn Manufacturing Co., Inc. Multilayer flexibility resilient thermal shielding sleeves

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975115A (en) * 1946-05-14 1961-03-14 Eugene P Wigner Bellows seal on reactor coolant tube
US3240234A (en) * 1960-02-24 1966-03-15 Union Carbide Corp Hose for low-temperature liquids
US3737372A (en) * 1970-04-10 1973-06-05 Commissariat Energie Atomique Installation for surveying the displacement of a structure in a nuclear reactor
EP0127432A2 (en) * 1983-05-24 1984-12-05 The Bentley-Harris Manufacturing Co. Article for protecting substrates
DE4007862A1 (en) * 1989-03-25 1990-09-27 Parabeam Ind & Handels Bv Bellows material - is an uncut double pile weave
US5617900A (en) * 1993-07-20 1997-04-08 Davlyn Manufacturing Co., Inc. Multilayer flexibility resilient thermal shielding sleeves

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10081947B2 (en) 2005-10-27 2018-09-25 Lake Products Limited Peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end
WO2007049980A1 (en) * 2005-10-27 2007-05-03 Andrew Leo Haynes A peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end.
US9255412B2 (en) 2005-10-27 2016-02-09 Andrew Leo Haynes Peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end
US10000934B2 (en) 2005-10-27 2018-06-19 Lake Products Limited Peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end
US10822802B2 (en) 2005-10-27 2020-11-03 Lake Products Limited Peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end
US10526789B2 (en) 2005-10-27 2020-01-07 Lake Products Limited Peripheral sealing gland for elongate objects passing through a surface or beyond a pipe end
USD958305S1 (en) 2006-05-18 2022-07-19 Lake Products Limited Sealing gland
USD958942S1 (en) 2006-05-18 2022-07-26 Lake Products Limited Sealing gland
USD840516S1 (en) 2006-09-11 2019-02-12 Lake Products Limited Sealing gland
FR2959792A1 (en) * 2010-05-05 2011-11-11 Alstom Technology Ltd Case for ensuring sealing of wall around opening for allowing passage of crossing tube of heat exchanger for e.g. pressure type boiler in power station, has connection element between front and rear parts to surround tubes of case
US10829238B2 (en) 2011-02-18 2020-11-10 Airbus Operations Gmbh Arrangement for passing a line in a load-free manner through a pressure frame of a fuselage of an aircraft or spacecraft
WO2012110568A1 (en) * 2011-02-18 2012-08-23 Airbus Operations Gmbh Arrangement for passing a line in a load-free manner through a pressure frame of a fuselage of an aircraft or spacecraft
US10711923B2 (en) 2012-09-21 2020-07-14 Lake Products Limited Sealing gland
US9206928B2 (en) 2012-09-21 2015-12-08 Lake Products Limited Sealing gland
US9581271B2 (en) 2013-08-23 2017-02-28 Lake Products Limited Sealing gland
US9951890B2 (en) 2015-08-24 2018-04-24 Lake Products Limited Sealing gland
CN109667991A (en) * 2017-10-17 2019-04-23 德尔格制造股份两合公司 Sealing device and medical instrument at least one sealing device
CN111173996A (en) * 2020-01-24 2020-05-19 杭州制氧机集团股份有限公司 Novel heat preservation of cryopump box outlet pipe device

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FR2862736B1 (en) 2006-12-01
DE10355213A1 (en) 2005-06-23

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