US20150167887A1 - Methods and systems for jacket joints - Google Patents
Methods and systems for jacket joints Download PDFInfo
- Publication number
- US20150167887A1 US20150167887A1 US14/132,763 US201314132763A US2015167887A1 US 20150167887 A1 US20150167887 A1 US 20150167887A1 US 201314132763 A US201314132763 A US 201314132763A US 2015167887 A1 US2015167887 A1 US 2015167887A1
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- United States
- Prior art keywords
- adhesive
- film
- metal
- metal shell
- metal sheet
- 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.)
- Abandoned
Links
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- 230000001681 protective effect Effects 0.000 claims abstract description 28
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- 238000000465 moulding Methods 0.000 claims description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 210000002310 elbow joint Anatomy 0.000 claims description 3
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- 239000010935 stainless steel Substances 0.000 claims 1
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- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 13
- 238000000576 coating method Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 210000001503 joint Anatomy 0.000 description 9
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Images
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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
- F16L59/022—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves with a single slit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D49/00—Sheathing or stiffening objects
- B21D49/005—Hollow objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/04—Making rigid structural elements or units, e.g. honeycomb structures composite sheet metal profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
-
- 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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- 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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- 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
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
- F16L59/103—Rigid covers for tee pieces
-
- 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
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
- F16L59/106—Flexible covers for flanges, junctions, valves or the like
-
- 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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/168—Flexible insulating material or covers for flanges, junctions, valves or the like
-
- 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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/22—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for bends
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4981—Utilizing transitory attached element or associated separate material
- Y10T29/49812—Temporary protective coating, impregnation, or cast layer
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49885—Assembling or joining with coating before or during assembling
Definitions
- the present disclosure relates generally to methods and systems for improved metal insulation jacket joints.
- conduits e.g., pipes
- the insulated conduits may then be covered in a protective jacket for preserving and protecting the insulation material and underlying conduits.
- the protection may entail wrapping the conduit with a protective material, such as aluminum sheeting.
- aluminum sheeting In angled or bent conduits (e.g., elbow joints), aluminum sheeting may also be used but, because of the angled geometry, it may be beneficial to use aluminum sheeting having a geometry that more comformably follows the angles of the conduit, such as jacket joints. Similar jacket joints may be used for tee (e.g., “T”) junctions.
- the jacket joints may include two symmetrical metal portions (e.g., “shells”) that may follow a desired angled geometry (e.g., 90° elbow).
- the two shells may be placed opposite each other and covering a desired angled conduit.
- the shells may then be secured in place, for example, by screws, by securing the shells with one or more metal bands or strips, and/or by using other fastening techniques.
- the installed shells may then provide protection against external elements (e.g., dust, fluids, and so forth), inadvertent contact, and so forth, of the conduit and its overlaying insulation. It may be useful to improve the manufacture and installation of jacket joints.
- a system comprising a protective jacket for insulating pipe.
- the protective jacket comprises a first metal shell comprising an interior surface and an exterior surface, wherein the interior surface comprises a moisture protective coating, and the exterior surface comprises a film adhered to the exterior surface by an adhesive, and wherein the adhesive provides for a toolless removal of the film.
- method for manufacturing a protective jacket for insulating pipe comprises manufacturing a first metal shell.
- the manufacturing the first metal shell includes applying a moisture protecting coating to a first surface of a metal sheet and applying a film to a second surface of the metal sheet by using an adhesive, wherein the adhesive provides for a toolless removal of the film.
- the manufacturing the first metal shell additionally includes forming the metal sheet into a shape configured to follow contours of the pipe.
- a method for manufacturing a protective jacket for insulating pipe comprises manufacturing a first metal shell.
- the manufacturing the first metal shell includes applying a moisture protecting coating to a first surface of a metal sheet and applying a film to a second surface of the metal sheet by using an adhesive, wherein the adhesive provides for a toolless removal of the film.
- the manufacturing the first metal shell additionally includes using a male and a female mold to form the metal sheet into a shape configured to follow contours of the pipe by press or punch molding.
- FIG. 1 is a top view of an embodiment of a metal sheet used in manufacturing an insulation jacket
- FIG. 2 is a side view of an embodiment of single layer film and a moisture protective coating disposed on the metal sheet of FIG. 1 ;
- FIG. 3 is a side view of an embodiment of multiple layer film and a moisture protective coating disposed on the metal sheet of FIG. 1 ;
- FIG. 4 is a top view of an embodiment of a metal sheet as shown in FIGS. 2 and 3 with a separation line superimposed onto the sheet;
- FIG. 5 is a top view of an embodiment of a metal sheet separated into two components
- FIG. 6 is a perspective view of embodiments of angled molds used in manufacturing angled insulation jackets
- FIG. 7 is a perspective view of embodiments of angled jacket shells
- FIG. 8 is a perspective view of an embodiment of an insulation jacket
- FIG. 9 is a perspective view of embodiments of molds used in manufacturing tee junction insulation jackets
- FIG. 10 is a perspective view of embodiments of tee junction jacket shells
- FIG. 11 is a perspective view of an embodiment of a tee junction insulation jacket.
- FIG. 12 is a flow chart of an embodiment of a process suitable for manufacturing insulation jackets.
- the present disclosure provides improvements to the manufacturing and installation of jacket joints.
- the techniques described herein are based upon the use of a single- or multi-layered protective sheet disposed on an exterior surface of shell portions suitable for protecting sheet metal during jacket manufacturing and installation.
- the jacket may be manufactured without applying an external coating (e.g., paint), thus improving manufacturing time and decreasing cost.
- an external coating e.g., paint
- the protective sheet Before (or during) installation of the jacket onto the conduit, the protective sheet may be removed, for example, by hand, leaving a substantially scratch-free outer surface. Indeed, toolless removal of the protective sheet is provided, thereby improving installation times.
- the use of metal that is galvanically compatible with linear conduits is also provided.
- the angled conduit e.g., elbow joint
- a linear conduit e.g., straight pipe
- the jacket may include a polymeric coating on an interior surface, such as a multilayer polysurlyn moisture barrier, particularly useful for minimizing or eliminating corrosion in the interior of the jacket.
- FIG. 1 an embodiment of a metal plate or sheet 10 used in manufacturing an insulation jacket is shown.
- Insulating and/or covering linear pipe with metal is relatively simple: a flat metal sheet is wrapped concentrically around the linear cylindrical portion of pipe and secured with a banding (e.g., strap) or fasteners.
- Linear portions of pipe may be covered with, for example, 1000 or 3000 series aluminum. Protecting the turns and bends in the pipe, such as at angled portions, tees, or elbows, can be difficult, however. Corner or elbow portions of pipes may be covered using softer or more malleable metal to facilitate wrapping around the “bent” portion.
- an inner surface 12 may be coated with a thermally protective coating, such as polysurlyn. Accordingly, the inner surface 12 may be disposed facing pipes carrying hot liquids or gases and provide for longer life and increased protection.
- An outer surface 14 may be protected during manufacturing (and shipping) by using a protective film, as described in more detail below with respect to FIG. 2 . Accordingly, an improved insulating jacket joint may be provided.
- FIG. 2 is a side view of the metal sheet 10 of FIG. 1 depicting details of a polysurlyn coating 16 and a film 18 applied, for example, before forming of the metal sheet 10 .
- the outer surface 14 of the metal sheet 10 may have had a protective coating, such as paint, applied.
- the paint may then protect the metal sheet 10 , for example, from scratches and additional abrasions that may occur during the remainder of the forming process.
- the techniques described herein replace the protecting coating with the protective film 18 .
- the film 18 may be applied in lieu of any coating and may suitably withstand various manufacturing processes, including forming of the metal sheet 10 by using hydraulic presses. Further, the film 18 may be removed manually after manufacturing of the jacket shell without the use of special tools, either before shipping a completed jacket shell or before installation of the jacket shell onto a pipe.
- the film 18 is applied by using an adhesive layer 20 .
- the film 18 may include a polyethylene, a polypropylene, a plastic, a vinyl, a polymer, or a combination thereof.
- the adhesive layer 20 may include an adhesive such as acrylic-based adhesives, water-based adhesives, and/or other adhesives that may provide for medium-tack adhesion. These types of adhesives may provide a secure attachment of the film 18 to the sheet 10 but additionally enable substantially all of the adhesive layer 20 to remain with the film 18 when the film 18 is manually removed from the metal sheet 10 , for example, by grasping a corner of the film 18 between the thumb and forefinger and pulling outwardly from the metal sheet 10 . Accordingly, minimal or almost no cleaning of the outer surface 14 may be needed once the film 18 has been removed.
- the polysurlyn coating 16 may include a low density polyethylene (LPDE) layer 22 , a Surlyn® layer 24 , and a high density polyethylene layer 26 .
- the layers 22 , 24 , 26 may be coextruded and used to provide for protection against pitting, crevice, and/or galvanic corrosion. It is to be understood that the cross sections shown in FIGS. 2 and 3 are not to scale.
- each of the three layers 22 , 24 , 26 may have a thickness of approximately 0.5 to approximately 2.5 mils
- the metal sheet 10 may have a thickness of between approximately 8 and approximately 30 mils
- the film and adhesive layers may together have a thickness of between approximately 0.5 and approximately 2.5 mils.
- multiple plys of film may be used.
- FIG. 3 depicts the use of a multiple ply film 28 having a first ply 30 and a second ply 32 . Adding multiple plys 30 , 32 may provide for improved durability of the film 28 during the manufacturing of the jackets. Because FIG. 3 includes like elements of FIG. 2 , the like elements are depicted using like numbers.
- FIG. 4 is a perspective view of an embodiment of the metal sheet 10 having the protective film 18 or 28 disposed onto the outer surface 14 of the metal sheet 10 .
- the metal sheet 10 may include the film 18 or 28 suitable for the protection of the metal sheet 10 as it undergoes manufacturing processes.
- a cut line 34 is depicted, useful in cutting or otherwise partitioning the metal sheet 10 into two components as shown in more detail with respect to FIG. 5 .
- the metal sheet 10 may be cut into two or more pieces or portions, even when the metal sheet 10 includes the films 18 and/or 28 .
- the films 18 and/or 28 may protect the outer surface 14 of the metal sheet 10 during the cutting operation, reducing or eliminating scratching and marring.
- a number of techniques may be used to cut the metal sheet 10 into portions 36 , 38 .
- rotary cutters, press cutters, metal shears, and so on may be used to divide the metal sheet 10 into the portions 36 , 38 .
- the protective films 18 , 28 may provide for protection against scratches, inadvertent abrasions, and inadvertent contact of the metal sheet 10 against undesired surfaces.
- the portions 36 , 38 may then be shaped into a desired geometry, for example, angled geometries and t-shaped geometries as described in more detail below with respect to FIG. 6 .
- FIG. 6 is a perspective view of an embodiment of a mold 40 suitable for manufacturing improved insulation jackets having angled geometries.
- the mold 40 includes a female mold 42 and a male mold 44 .
- the male mold 44 has a generally semi-circular cross-section 46 and two or more fingers 48 a , 48 b .
- the fingers 48 a and 48 b may be formed at least 0.5 inches from each other, or between 0.1 and 1.5 inches from each other, for example, to more comformably provide for angles ⁇ .
- Each of the fingers 48 a , 48 b may defines fillet-forming areas 50 , 52 at a junction of the fingers 48 a , 48 b and a base 54 of the mold 40 .
- the female mold 42 corresponds to the male mold 44 and may be used to form the improved insulation jacket.
- the female mold 42 includes receptacles 56 a , 56 b that may accept the fingers 48 a , 48 b , respectively, when the male mold 44 is inserted into the female mold 42 , for example, in a direction 60 .
- each of the portions 36 , 38 may be press or punch molded by using the mold 40 .
- the press or punch operation may apply forces of between approximately 0.25 and approximately 1 ton per square foot, or more.
- each portion 36 , 38 may be placed onto the bottom end 62 of the female mold 42 and the male mold 44 may then be pressed in the direction 60 to transform the portions 36 , 38 into shells 64 , 66 , shown in FIG. 7 , and excess sections 68 , 70 , 72 of the portions 36 , 38 may be cut off or otherwise removed.
- the films 18 , 28 may protect the outer surface 14 of the metal sheet 10 from marring, scratching, or more generally, undesired surface defacement that may have otherwise occurred during the pressing operation. Indeed, the films 18 , 28 may provide for surface defacement protection during the remainder of manufacture of the insulation jackets.
- the films 18 , 28 may cover the shells 64 , 66 , including assorted geometric features, including raised ridges 80 a , 80 b conforming to the fingers 48 a , 48 b of the mold 40 , and an angle ⁇ conforming to a desired angle of a bent conduit or pipe (e.g., between approximately 45° and approximately 150°).
- the shells 64 , 66 may have the films 18 or 28 removed before shipping. For example, a corner 82 of the films 18 and/or 28 may be grasped between the thumb and forefinger and pulled outwardly from the shells 64 and/or 66 . Once the films 18 and/or 28 have been removed, the shells 64 , 66 may include outer surfaces 14 substantially free of scratches, marring and defacements.
- the shells 64 , 66 may be shipped with the films 18 and/or 28 still attached. The films 18 and/or 28 may then protect the shells 64 , 66 from marring or scratching that may occur during shipment. Once the shells 64 , 66 arrive at a desired assembly site, the shells 64 , 66 may be used to insulate or otherwise cover an angled conduit, as shown in FIG. 8 . More specifically, FIG. 8 depicts a perspective view of an assembled insulation jacket 84 having raised ridges 80 a , 80 b after assembly of the shells 64 , 66 .
- the shells 64 , 66 are shown secured to each other using fasteners 86 and a strap 88 . More specifically, the shell 66 is shown as overlapping the shell 64 , thus resulting in a generally gapless seam 90 . It is to be understood that, in other embodiments, the shell 64 may overlap the shell 66 .
- the strap 88 may be manufactured to be compatible with the jacket 84 material so as to minimize or eliminate galvanic corrosion. Accordingly, the strap 88 may be manufactured from plastics, fiber-reinforced material (e.g., carbon fiber), and/or the same metal composition used in manufacturing the shells 64 , 66 .
- the techniques described herein may be used to manufacture other jacket types, such as tee junction jackets described in more detail below with respect to FIG. 9 .
- FIG. 9 is a perspective view of a mold 92 having a female mold 94 and a male mold 96 suitable for manufacturing tee junction jackets.
- the films 18 , 28 may protect the outer surface 14 of the metal sheet 10 from marring, scratching, or more generally, undesired surface defacement that may have otherwise occurred during mold pressing or punch molding operations.
- a portion 36 or 38 may be disposed so that the male mold 96 is pressed or punched onto the female mold 94 in a direction 98 .
- the press or punch operation may apply forces of between approximately 0.25 and approximately 1 ton per square foot or more, and the films 18 , 28 may suitably protect the portions 36 , 38 from undesired marring and scratching. Once molded, the portions 36 , 38 may more suitably conform to tee junction shapes, as depicted in FIG. 10 .
- FIG. 10 depicts tee junction shells 100 , 102 that may have been manufactured from portions 36 , 38 respectively.
- the shells 100 , 102 may still include the protective films 18 and/or 28 .
- the protective films 18 , 28 may be left disposed onto the shells 100 , 102 during the manufacturing process, and may additionally be used to protect the shells 100 , 102 during shipment.
- a substantially scratch-free outer surface 14 may be provided.
- the shells 100 , 102 may then be fastened our otherwise joined to each other, as shown in FIG. 11 , to manufacture a tee junction jacket 104 .
- fasteners 86 e.g., screws
- a gapless seam 106 may result from the shell 100 slightly overlapping the shell 102 , or vice versa.
- adhesives, bonding agents, and the like may be used to secure the shells 100 , 102 to each other.
- FIG. 12 is a flow chart of an embodiment of a process 108 suitable for manufacturing the various jacket systems and components described above.
- the process 108 may be implemented by using computer instructions stored in a computer readable medium, such as a memory of a controller, and executable by the controller.
- the process 108 may first apply (block 110 ) a moisture protective barrier, such as a surlyn barrier (e.g., multilayer polysurlyn moisture barrier) to the interior surface 12 of the metal sheet 10 portions 36 and/or 38 .
- the process 108 may then apply (block 112 ) the protective film 18 or 28 onto the outer surface 14 of the portions 36 and/or 38 .
- the film 18 or 28 with the adhesive layer 20 may be press rolled or otherwise disposed onto the outer surface 14 .
- the protective films 18 and 28 may suitably protect the portions 36 and/or 38 from further marring during manufacturing. Accordingly, the portions 36 and/or 38 may be formed (block 114 ) into the shells 64 , 66 , 100 , 102 by using, for example, the molds 40 , 92 .
- the forming (block 114 ) into shells 64 , 66 , 100 , 102 may include press or punch molding, for example, at forces of between approximately 0.25 and approximately 1 ton per square foot, or more.
- the films 18 and 28 may deform plastically during the forming operation (block 114 ), but may suitably protect the outer surface 14 from scratching or marring. Any excess material may then be removed (block 116 ), for example, by cutting.
- the films 18 and 28 from the completed shells 64 , 66 , 100 , 102 may then be removed. For example, by grasping a corner of the film 18 or 28 between the thumb and forefinger and pulling outwardly away from the outer surface 14 .
- the completed shells 64 , 66 , 100 , 102 may be shipped with the films 18 and 28 included for further protection during shipping.
- the films 18 or 28 may then be removed (block 118 ) prior to installation of the shells 64 , 66 , 100 , 102 .
- the process 108 may then join or assemble (block 120 ) the shells 64 , 66 , 100 , 102 into corresponding angled jackets 84 and/or tee junctions 104 .
- fasteners 86 and/or straps 88 may be used to join the shells 64 , 66 , 100 , 102 to assemble the jackets 84 , 104 .
- the jackets 84 , 104 may then insulate and protect underlying conduit joints, such as angled joints and tee-junction joints.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
Abstract
Description
- The present disclosure relates generally to methods and systems for improved metal insulation jacket joints.
- A wide range of industrial, commercial, residential and other applications may provide for conduits (e.g., pipes) insulated with fiberglass or other materials. The insulated conduits may then be covered in a protective jacket for preserving and protecting the insulation material and underlying conduits. In linear conduits, the protection may entail wrapping the conduit with a protective material, such as aluminum sheeting. In angled or bent conduits (e.g., elbow joints), aluminum sheeting may also be used but, because of the angled geometry, it may be beneficial to use aluminum sheeting having a geometry that more comformably follows the angles of the conduit, such as jacket joints. Similar jacket joints may be used for tee (e.g., “T”) junctions.
- The jacket joints may include two symmetrical metal portions (e.g., “shells”) that may follow a desired angled geometry (e.g., 90° elbow). The two shells may be placed opposite each other and covering a desired angled conduit. The shells may then be secured in place, for example, by screws, by securing the shells with one or more metal bands or strips, and/or by using other fastening techniques. The installed shells may then provide protection against external elements (e.g., dust, fluids, and so forth), inadvertent contact, and so forth, of the conduit and its overlaying insulation. It may be useful to improve the manufacture and installation of jacket joints.
- Present embodiments are designed to respond to such a need. In accordance with a first embodiment, a system comprising a protective jacket for insulating pipe is provided. The protective jacket comprises a first metal shell comprising an interior surface and an exterior surface, wherein the interior surface comprises a moisture protective coating, and the exterior surface comprises a film adhered to the exterior surface by an adhesive, and wherein the adhesive provides for a toolless removal of the film.
- In another embodiment, method for manufacturing a protective jacket for insulating pipe is provided. The method comprises manufacturing a first metal shell. The manufacturing the first metal shell includes applying a moisture protecting coating to a first surface of a metal sheet and applying a film to a second surface of the metal sheet by using an adhesive, wherein the adhesive provides for a toolless removal of the film. The manufacturing the first metal shell additionally includes forming the metal sheet into a shape configured to follow contours of the pipe.
- In a further embodiment, a method for manufacturing a protective jacket for insulating pipe comprises manufacturing a first metal shell. The manufacturing the first metal shell includes applying a moisture protecting coating to a first surface of a metal sheet and applying a film to a second surface of the metal sheet by using an adhesive, wherein the adhesive provides for a toolless removal of the film. The manufacturing the first metal shell additionally includes using a male and a female mold to form the metal sheet into a shape configured to follow contours of the pipe by press or punch molding.
- These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
-
FIG. 1 is a top view of an embodiment of a metal sheet used in manufacturing an insulation jacket; -
FIG. 2 is a side view of an embodiment of single layer film and a moisture protective coating disposed on the metal sheet ofFIG. 1 ; -
FIG. 3 is a side view of an embodiment of multiple layer film and a moisture protective coating disposed on the metal sheet ofFIG. 1 ; -
FIG. 4 is a top view of an embodiment of a metal sheet as shown inFIGS. 2 and 3 with a separation line superimposed onto the sheet; -
FIG. 5 is a top view of an embodiment of a metal sheet separated into two components; -
FIG. 6 is a perspective view of embodiments of angled molds used in manufacturing angled insulation jackets; -
FIG. 7 is a perspective view of embodiments of angled jacket shells; -
FIG. 8 is a perspective view of an embodiment of an insulation jacket; -
FIG. 9 is a perspective view of embodiments of molds used in manufacturing tee junction insulation jackets; -
FIG. 10 is a perspective view of embodiments of tee junction jacket shells; -
FIG. 11 is a perspective view of an embodiment of a tee junction insulation jacket; and -
FIG. 12 is a flow chart of an embodiment of a process suitable for manufacturing insulation jackets. - The present disclosure provides improvements to the manufacturing and installation of jacket joints. The techniques described herein are based upon the use of a single- or multi-layered protective sheet disposed on an exterior surface of shell portions suitable for protecting sheet metal during jacket manufacturing and installation. By disposing the protective sheet on the exterior surface, the jacket may be manufactured without applying an external coating (e.g., paint), thus improving manufacturing time and decreasing cost. Before (or during) installation of the jacket onto the conduit, the protective sheet may be removed, for example, by hand, leaving a substantially scratch-free outer surface. Indeed, toolless removal of the protective sheet is provided, thereby improving installation times. In certain embodiments, the use of metal that is galvanically compatible with linear conduits is also provided. That is, the angled conduit (e.g., elbow joint) may be coupled to a linear conduit (e.g., straight pipe) so that the resulting combination includes a metal composition that minimizes or eliminates galvanic corrosion. In one embodiment, the jacket may include a polymeric coating on an interior surface, such as a multilayer polysurlyn moisture barrier, particularly useful for minimizing or eliminating corrosion in the interior of the jacket. By providing for an interior polysurlyn-based coating, and exterior protective film coating in lieu of painted coatings, the embodiments described herein may provide for increased operational life with improved manufacturing and installation efficiencies.
- Turning now to the drawings, and referring first to
FIG. 1 , an embodiment of a metal plate orsheet 10 used in manufacturing an insulation jacket is shown. Insulating and/or covering linear pipe with metal is relatively simple: a flat metal sheet is wrapped concentrically around the linear cylindrical portion of pipe and secured with a banding (e.g., strap) or fasteners. Linear portions of pipe may be covered with, for example, 1000 or 3000 series aluminum. Protecting the turns and bends in the pipe, such as at angled portions, tees, or elbows, can be difficult, however. Corner or elbow portions of pipes may be covered using softer or more malleable metal to facilitate wrapping around the “bent” portion. However, the use of dissimilar metals may lead to galvanic rusting, and the wrapping may not comformably fit the bends. The techniques described herein provide for metal sheets that may be formed into metal jackets to incorporate desired geometries or bends, and that may use the same metal type used in protecting linear conduits. In certain embodiments, aninner surface 12 may be coated with a thermally protective coating, such as polysurlyn. Accordingly, theinner surface 12 may be disposed facing pipes carrying hot liquids or gases and provide for longer life and increased protection. Anouter surface 14 may be protected during manufacturing (and shipping) by using a protective film, as described in more detail below with respect toFIG. 2 . Accordingly, an improved insulating jacket joint may be provided. -
FIG. 2 is a side view of themetal sheet 10 ofFIG. 1 depicting details of apolysurlyn coating 16 and afilm 18 applied, for example, before forming of themetal sheet 10. Before the techniques described herein, theouter surface 14 of themetal sheet 10 may have had a protective coating, such as paint, applied. The paint may then protect themetal sheet 10, for example, from scratches and additional abrasions that may occur during the remainder of the forming process. The techniques described herein replace the protecting coating with theprotective film 18. Indeed, thefilm 18 may be applied in lieu of any coating and may suitably withstand various manufacturing processes, including forming of themetal sheet 10 by using hydraulic presses. Further, thefilm 18 may be removed manually after manufacturing of the jacket shell without the use of special tools, either before shipping a completed jacket shell or before installation of the jacket shell onto a pipe. - In the depicted embodiment, the
film 18 is applied by using anadhesive layer 20. In one embodiment, thefilm 18 may include a polyethylene, a polypropylene, a plastic, a vinyl, a polymer, or a combination thereof. Theadhesive layer 20 may include an adhesive such as acrylic-based adhesives, water-based adhesives, and/or other adhesives that may provide for medium-tack adhesion. These types of adhesives may provide a secure attachment of thefilm 18 to thesheet 10 but additionally enable substantially all of theadhesive layer 20 to remain with thefilm 18 when thefilm 18 is manually removed from themetal sheet 10, for example, by grasping a corner of thefilm 18 between the thumb and forefinger and pulling outwardly from themetal sheet 10. Accordingly, minimal or almost no cleaning of theouter surface 14 may be needed once thefilm 18 has been removed. - Also depicted are further details of the
polysurlyn coating 16 disposed on theinner surface 12. More specifically, thepolysurlyn coating 16 may include a low density polyethylene (LPDE)layer 22, aSurlyn® layer 24, and a highdensity polyethylene layer 26. Thelayers FIGS. 2 and 3 are not to scale. By way of example only, each of the threelayers metal sheet 10 may have a thickness of between approximately 8 and approximately 30 mils, and the film and adhesive layers may together have a thickness of between approximately 0.5 and approximately 2.5 mils. It is also to be noted that in other embodiments, such as the embodiment shown inFIG. 3 , multiple plys of film may be used. For example,FIG. 3 depicts the use of amultiple ply film 28 having afirst ply 30 and asecond ply 32. Addingmultiple plys film 28 during the manufacturing of the jackets. BecauseFIG. 3 includes like elements ofFIG. 2 , the like elements are depicted using like numbers. -
FIG. 4 is a perspective view of an embodiment of themetal sheet 10 having theprotective film outer surface 14 of themetal sheet 10. As mentioned above, themetal sheet 10 may include thefilm metal sheet 10 as it undergoes manufacturing processes. InFIG. 4 , acut line 34 is depicted, useful in cutting or otherwise partitioning themetal sheet 10 into two components as shown in more detail with respect toFIG. 5 . Indeed, themetal sheet 10 may be cut into two or more pieces or portions, even when themetal sheet 10 includes thefilms 18 and/or 28. Thefilms 18 and/or 28 may protect theouter surface 14 of themetal sheet 10 during the cutting operation, reducing or eliminating scratching and marring. A number of techniques may be used to cut themetal sheet 10 intoportions metal sheet 10 into theportions protective films metal sheet 10 against undesired surfaces. Theportions FIG. 6 . -
FIG. 6 is a perspective view of an embodiment of amold 40 suitable for manufacturing improved insulation jackets having angled geometries. In the depicted embodiment, themold 40 includes afemale mold 42 and amale mold 44. Themale mold 44 has a generallysemi-circular cross-section 46 and two ormore fingers fingers fingers areas fingers base 54 of themold 40. Thefemale mold 42 corresponds to themale mold 44 and may be used to form the improved insulation jacket. For example, thefemale mold 42 includesreceptacles fingers male mold 44 is inserted into thefemale mold 42, for example, in adirection 60. - In one embodiment, each of the
portions mold 40. The press or punch operation may apply forces of between approximately 0.25 and approximately 1 ton per square foot, or more. For example, eachportion bottom end 62 of thefemale mold 42 and themale mold 44 may then be pressed in thedirection 60 to transform theportions shells FIG. 7 , andexcess sections portions films outer surface 14 of themetal sheet 10 from marring, scratching, or more generally, undesired surface defacement that may have otherwise occurred during the pressing operation. Indeed, thefilms - As shown in
FIG. 7 , thefilms shells ridges fingers mold 40, and an angle α conforming to a desired angle of a bent conduit or pipe (e.g., between approximately 45° and approximately 150°). In one embodiment, theshells films corner 82 of thefilms 18 and/or 28 may be grasped between the thumb and forefinger and pulled outwardly from theshells 64 and/or 66. Once thefilms 18 and/or 28 have been removed, theshells outer surfaces 14 substantially free of scratches, marring and defacements. - It is to be noted that the
shells films 18 and/or 28 still attached. Thefilms 18 and/or 28 may then protect theshells shells shells FIG. 8 . More specifically,FIG. 8 depicts a perspective view of an assembledinsulation jacket 84 having raisedridges shells - In the depicted embodiment of
FIG. 8 , theshells fasteners 86 and astrap 88. More specifically, theshell 66 is shown as overlapping theshell 64, thus resulting in a generallygapless seam 90. It is to be understood that, in other embodiments, theshell 64 may overlap theshell 66. Thestrap 88 may be manufactured to be compatible with thejacket 84 material so as to minimize or eliminate galvanic corrosion. Accordingly, thestrap 88 may be manufactured from plastics, fiber-reinforced material (e.g., carbon fiber), and/or the same metal composition used in manufacturing theshells FIG. 9 . -
FIG. 9 is a perspective view of amold 92 having afemale mold 94 and amale mold 96 suitable for manufacturing tee junction jackets. As mentioned above with respect to themold 40 described inFIG. 6 , thefilms outer surface 14 of themetal sheet 10 from marring, scratching, or more generally, undesired surface defacement that may have otherwise occurred during mold pressing or punch molding operations. For example, aportion male mold 96 is pressed or punched onto thefemale mold 94 in adirection 98. The press or punch operation may apply forces of between approximately 0.25 and approximately 1 ton per square foot or more, and thefilms portions portions FIG. 10 . -
FIG. 10 depictstee junction shells portions shells protective films 18 and/or 28. As mentioned above, theprotective films shells shells films shells outer surface 14 may be provided. Theshells FIG. 11 , to manufacture a tee junction jacket 104. In the depicted embodiment, fasteners 86 (e.g., screws) are used to join theshells gapless seam 106 that may result from theshell 100 slightly overlapping theshell 102, or vice versa. In other embodiments, adhesives, bonding agents, and the like, may be used to secure theshells -
FIG. 12 is a flow chart of an embodiment of aprocess 108 suitable for manufacturing the various jacket systems and components described above. Theprocess 108 may be implemented by using computer instructions stored in a computer readable medium, such as a memory of a controller, and executable by the controller. In the depicted embodiment, theprocess 108 may first apply (block 110) a moisture protective barrier, such as a surlyn barrier (e.g., multilayer polysurlyn moisture barrier) to theinterior surface 12 of themetal sheet 10portions 36 and/or 38. Theprocess 108 may then apply (block 112) theprotective film outer surface 14 of theportions 36 and/or 38. Thefilm adhesive layer 20 may be press rolled or otherwise disposed onto theouter surface 14. As mentioned earlier, theprotective films portions 36 and/or 38 from further marring during manufacturing. Accordingly, theportions 36 and/or 38 may be formed (block 114) into theshells molds - The forming (block 114) into
shells films outer surface 14 from scratching or marring. Any excess material may then be removed (block 116), for example, by cutting. In one embodiment, thefilms shells film outer surface 14. In another embodiment, the completedshells films films shells - The
process 108 may then join or assemble (block 120) theshells angled jackets 84 and/or tee junctions 104. As mentioned above with respect toFIGS. 8 and 11 ,fasteners 86 and/orstraps 88 may be used to join theshells jackets 84, 104. Thejackets 84, 104 may then insulate and protect underlying conduit joints, such as angled joints and tee-junction joints. - While only certain features of the invention have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
Claims (20)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/132,763 US20150167887A1 (en) | 2013-12-18 | 2013-12-18 | Methods and systems for jacket joints |
CA2928570A CA2928570C (en) | 2013-12-18 | 2014-09-17 | Improved methods and systems for jacket joints |
PCT/US2014/056125 WO2015094442A1 (en) | 2013-12-18 | 2014-09-17 | Improved methods and systems for jacket joints |
US16/565,177 US11103913B2 (en) | 2013-12-18 | 2019-09-09 | Methods and systems for jacket joints |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/132,763 US20150167887A1 (en) | 2013-12-18 | 2013-12-18 | Methods and systems for jacket joints |
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US16/565,177 Continuation US11103913B2 (en) | 2013-12-18 | 2019-09-09 | Methods and systems for jacket joints |
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US20150167887A1 true US20150167887A1 (en) | 2015-06-18 |
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US16/565,177 Active US11103913B2 (en) | 2013-12-18 | 2019-09-09 | Methods and systems for jacket joints |
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US16/565,177 Active US11103913B2 (en) | 2013-12-18 | 2019-09-09 | Methods and systems for jacket joints |
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US (2) | US20150167887A1 (en) |
CA (1) | CA2928570C (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10041621B1 (en) * | 2017-05-22 | 2018-08-07 | Derek Allen | Fire tube wrap |
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US20080206543A1 (en) * | 2007-02-02 | 2008-08-28 | Industrial Insulation Group | Pre-applied protective jacketing construction for pipe and block insulation |
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US3153546A (en) * | 1961-08-22 | 1964-10-20 | Victor R Dunn | Pipe elbow insulating jacket |
US3559694A (en) * | 1969-04-14 | 1971-02-02 | Associated Insulation Of Calif | Removable insulated fitting for pipe joints |
JPS54155280A (en) * | 1978-05-29 | 1979-12-07 | Nitto Electric Ind Co Ltd | Corrosion-resistant film or tape |
JPH082624B2 (en) * | 1987-02-09 | 1996-01-17 | 株式会社クラレ | Multi-layer pipe for stretch forming and method for producing multi-layer container using the same |
US4830060A (en) * | 1987-11-20 | 1989-05-16 | Proto Corp. | Specialized pipefitting cover for insulated Y-shaped joint |
US6000420A (en) * | 1995-06-06 | 1999-12-14 | Horizon Resources Corporation | Insulating jacket for hot and cold piping systems and method of use |
US6588782B2 (en) * | 2001-07-13 | 2003-07-08 | R. W. Coomber 1998, Inc. | Running boards and methods of constructing a running board |
US7360799B1 (en) * | 2004-08-17 | 2008-04-22 | Price Todd C | Insulation cladding for bends |
US10208885B2 (en) * | 2008-04-07 | 2019-02-19 | Illinois Tool Works Inc. | Corrosion resistant sheet metal jacketing |
US9046210B2 (en) * | 2008-12-18 | 2015-06-02 | Illinois Tool Workers Inc. | Easy-forming metallic insulation elbow jackets |
-
2013
- 2013-12-18 US US14/132,763 patent/US20150167887A1/en not_active Abandoned
-
2014
- 2014-09-17 WO PCT/US2014/056125 patent/WO2015094442A1/en active Application Filing
- 2014-09-17 CA CA2928570A patent/CA2928570C/en not_active Expired - Fee Related
-
2019
- 2019-09-09 US US16/565,177 patent/US11103913B2/en active Active
Patent Citations (5)
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US2082175A (en) * | 1933-04-26 | 1937-06-01 | Barrett Co | Pipe shield |
US3078880A (en) * | 1953-05-11 | 1963-02-26 | Gustin Bacon Mfg Co | Folding insulated duct |
US6840283B2 (en) * | 2002-05-20 | 2005-01-11 | Usui Kokusai Sangyo Kaisha Limited | High-pressure fuel injection pipe having connecting head portion |
US20070126201A1 (en) * | 2005-12-01 | 2007-06-07 | Berryman Products, Inc. | Roll formed step rail for a vehicle |
US20080206543A1 (en) * | 2007-02-02 | 2008-08-28 | Industrial Insulation Group | Pre-applied protective jacketing construction for pipe and block insulation |
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US10041621B1 (en) * | 2017-05-22 | 2018-08-07 | Derek Allen | Fire tube wrap |
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Publication number | Publication date |
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US11103913B2 (en) | 2021-08-31 |
CA2928570A1 (en) | 2015-06-25 |
CA2928570C (en) | 2018-06-26 |
WO2015094442A1 (en) | 2015-06-25 |
US20190388955A1 (en) | 2019-12-26 |
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