GB1589475A - Sheathing material for insulating a pipe or pipe fitting - Google Patents

Sheathing material for insulating a pipe or pipe fitting Download PDF

Info

Publication number
GB1589475A
GB1589475A GB36567/76A GB3656776A GB1589475A GB 1589475 A GB1589475 A GB 1589475A GB 36567/76 A GB36567/76 A GB 36567/76A GB 3656776 A GB3656776 A GB 3656776A GB 1589475 A GB1589475 A GB 1589475A
Authority
GB
United Kingdom
Prior art keywords
shell
insulating
pipe
plastics material
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB36567/76A
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.)
COSTELLO H J
Original Assignee
COSTELLO H J
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 COSTELLO H J filed Critical COSTELLO H J
Priority to GB36567/76A priority Critical patent/GB1589475A/en
Publication of GB1589475A publication Critical patent/GB1589475A/en
Expired 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
    • 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
    • F16L59/024—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 composed of two half sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/58—Snap connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1242—Tongue and groove joints comprising interlocking undercuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12445—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue having the tongue on the side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/547—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)
  • Laminated Bodies (AREA)

Description

(54) SHEATHING MATERIAL FOR INSULATING A PIPE OR PIPE FITTING (71) I, HOWARD JOHN COSTELLO, a British Subject, of 28 Lyme Road Disley, Cheshire, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to sheathing material for insulating a pipe or pipe fitting.
When pipework has to be lagged after installation it can be effected by plastering on a settable material including insulating material such as asbestos or glass fibres, smoothing and then painting. Such a process is very expensive and the insulation cannot be easily removed. A second known way of insulating pipework consists of applying hollow semi-cylinders of insulation to the pipe and fastening them together with straps or binding. In many cases the actual insulating material is not sufficiently strong to withstand wear and either deterioration thereof takes place, or a relatively expensive surface covering has to be applied subsequently.
An object of the invention is to provide an improved sheathing material and accordingly the invention provides sheathing material in the form of a layer of insulating material C-shaped in cross-section and bonded to an outer shell of plastics material of whose free edges one has at least one groove formation and the other has at least one complementory tongue formation so that a pair of lengths of such material can be interconnected by means of the formations at the free edges of their shells to embrace a pipe or pipe fitting and provide protected insulation therefor. Advantageously the shell is of rigid plastics material. Preferably the tongue and groove formations can engage with a snap-action.
For use on pipes the material will normally consist of hollow semi-cylindrical pieces, a pair being secured one on each side of the pipe. For flanged joints, valves, junctions and other fittings, more complicated shapes will be necessary.
The invention will be described further, by way of example, with reference to the accompanying drawings which illustrate a preferred embodiment it being understood that the following description is illustrative and not limitative of the scope of the invention. In the drawings: Fig. 1 is an exploded perspective view of a preferred sheathing material of the invention; Fig. 2 is a transverse cross-sectional view, on an enlarged scale, of the material of Fig. 1 assembled; and Fig. 3 is a still further enlarged detail of Fig. 2.
A preferred insulating material 10 of the invention comprises a hollow semi-cylindrical layer of insulation 11 of C-shaped crosssection bonded inside a protective semicylindrical rigid shell 12 moulded from polethylene or polystyrene. Along one edge the shell 12 has a tongue 13 and along the other edge has a complementary groove 14. The tongue 13 and groove 14 are stepped at 15 (Fig. 3) to ensure that they can engage with a snap action.
In use, a pair of lengths of the above material 10 are disposed about a length of pipe (not shown) the tongue 13 of one engaging the groove 14 of the other and vice verso, and being snapped together to give a protectively finished aesthetically pleasing, and easily removed insulation to the pipe. Each pair of lengths 10 will butt against an adjacent pair and the joint can be taped if desired.
For surrounding flanged joints the shapes of the insulation layer and the shell will, of course, be varied but will retain their overall C-shaped cross section. The ends of a pair of pieces around a flanged joint will, of course, be of the same diameter to the ends of the aforedescribed pairs. Similar snap fastening tongues and grooves will be provided.
Similarly, a wide range of complementary pairs of pieces, all compatible will be provided for valves, bends and junctions.
The invention is not limited to the precise details of the foregoing and variations can be made thereto. For example when such insulating material is "designed into" pipework, it is advantageous if the pipes are hung from hangers which are of solid plastics material and surround the pipes, the inner diameter of the hangers being the same as the outer-diameter of a pair of pieces of the insulating material and shaped complementarily.
For high temperatures the insulation 11 may include glass-fibre adhered to the shell 12. For lower temperatures the insulation 11 can be a layer of foamed plastics material extruded to fit the shell 12, shortly after extrusion of the shell 12 itself and chemically bonded thereto.
WHAT I CLAIM IS: 1. Sheathing material in the form of a layer of insulating material C-shaped in cross-section and bonded to an outer shell of plastics material of whose free edges one has at least one groove formation and the other has at least one complementary tongue formation so that a pair of lengths of such material can be interconnected by means of the formations at the free edges of their shells to embrace a pipe or pipe fitting and provide protected insulation therefor.
2. Material as claimed in Claim 1, wherein formations of a pair of lengths of the material can unite with a snap action.
3. Material as claimed in Claim 1 or 2, wherein the tongue and groove formations are provided at intervals along the free edges of the shells.
4. Material as claimed in Claim 3, wherein the shells are extruded from plastics material.
5. Material as claimed in any preceding claim wherein the insulating layer is of glassfibre adhered to the shell.
6. Material as claimed in any one of claims 1 to 4, wherein the insulating layer is of foamed plastics material.
7. Material as claimed in Claim 6, wherein the foamed plastics material is extruded onto the shell to bond therewith.
8. Sheathing material substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. Similarly, a wide range of complementary pairs of pieces, all compatible will be provided for valves, bends and junctions. The invention is not limited to the precise details of the foregoing and variations can be made thereto. For example when such insulating material is "designed into" pipework, it is advantageous if the pipes are hung from hangers which are of solid plastics material and surround the pipes, the inner diameter of the hangers being the same as the outer-diameter of a pair of pieces of the insulating material and shaped complementarily. For high temperatures the insulation 11 may include glass-fibre adhered to the shell 12. For lower temperatures the insulation 11 can be a layer of foamed plastics material extruded to fit the shell 12, shortly after extrusion of the shell 12 itself and chemically bonded thereto. WHAT I CLAIM IS:
1. Sheathing material in the form of a layer of insulating material C-shaped in cross-section and bonded to an outer shell of plastics material of whose free edges one has at least one groove formation and the other has at least one complementary tongue formation so that a pair of lengths of such material can be interconnected by means of the formations at the free edges of their shells to embrace a pipe or pipe fitting and provide protected insulation therefor.
2. Material as claimed in Claim 1, wherein formations of a pair of lengths of the material can unite with a snap action.
3. Material as claimed in Claim 1 or 2, wherein the tongue and groove formations are provided at intervals along the free edges of the shells.
4. Material as claimed in Claim 3, wherein the shells are extruded from plastics material.
5. Material as claimed in any preceding claim wherein the insulating layer is of glassfibre adhered to the shell.
6. Material as claimed in any one of claims 1 to 4, wherein the insulating layer is of foamed plastics material.
7. Material as claimed in Claim 6, wherein the foamed plastics material is extruded onto the shell to bond therewith.
8. Sheathing material substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB36567/76A 1977-11-22 1977-11-22 Sheathing material for insulating a pipe or pipe fitting Expired GB1589475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36567/76A GB1589475A (en) 1977-11-22 1977-11-22 Sheathing material for insulating a pipe or pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36567/76A GB1589475A (en) 1977-11-22 1977-11-22 Sheathing material for insulating a pipe or pipe fitting

Publications (1)

Publication Number Publication Date
GB1589475A true GB1589475A (en) 1981-05-13

Family

ID=10389315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36567/76A Expired GB1589475A (en) 1977-11-22 1977-11-22 Sheathing material for insulating a pipe or pipe fitting

Country Status (1)

Country Link
GB (1) GB1589475A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126018A (en) * 1982-08-13 1984-03-14 Gilflex Key Ltd Junction pieces for electric conduit
GB2131118A (en) * 1982-11-30 1984-06-13 Teves Gmbh Alfred Brake hose line
US4614016A (en) * 1985-08-22 1986-09-30 Laing Donald R Method of insulating pipe with thermo-lock interfit insulation
GB2200713A (en) * 1987-02-09 1988-08-10 Yamato Kogyo Kk Plastics cover for piping
GB2228020A (en) * 1988-12-29 1990-08-15 Bridon Plc Jackets for cables and the like
US5262120A (en) * 1991-06-19 1993-11-16 Societe Anonyme Dite: Aerospatiale Societe Nationale Industrielle Method of manufacturing a protective sheath
WO1994023238A1 (en) * 1993-03-30 1994-10-13 Hutchinson Thermal insulation sheath for pipes and method of manufacture
US5505230A (en) * 1992-03-19 1996-04-09 Proprietary Technology, Inc. Means for protecting conducting equipment
US5611374A (en) * 1993-03-30 1997-03-18 Hutchinson Thermally insulating pipe lagging and method of manufacture
GB2345535A (en) * 1999-01-07 2000-07-12 Smiths Industries Plc Ventilation ducting with interlocking strip members
DE10240911A1 (en) * 2002-09-04 2004-03-18 Valeo Klimasysteme Gmbh Device for enclosing of at least one pipe, especially for use in motor vehicle's heating, ventilating and/or conditioning system, comprises two elements which when fitted together permanently define space around pipe
WO2018152564A1 (en) * 2017-02-22 2018-08-30 Mark Illingworth Taylor Insulation production and installation methods and assemblies
USD900983S1 (en) 2019-02-20 2020-11-03 Ipex Technologies Inc. Secondary double containment pipe
EP3865674A1 (en) * 2020-02-14 2021-08-18 General Electric Company Protective sleeve for a component of a turbine engine and method of installing the same
CN115143346A (en) * 2022-06-14 2022-10-04 浙江地球管业有限公司 Anti-freezing water supply pipe convenient to assemble and assembling method thereof

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126018A (en) * 1982-08-13 1984-03-14 Gilflex Key Ltd Junction pieces for electric conduit
GB2131118A (en) * 1982-11-30 1984-06-13 Teves Gmbh Alfred Brake hose line
US4614016A (en) * 1985-08-22 1986-09-30 Laing Donald R Method of insulating pipe with thermo-lock interfit insulation
GB2200713A (en) * 1987-02-09 1988-08-10 Yamato Kogyo Kk Plastics cover for piping
FR2610697A1 (en) * 1987-02-09 1988-08-12 Yamato Kogyo Kk ENVELOPE OF PLASTIC MATERIAL FOR PIPING
GB2200713B (en) * 1987-02-09 1991-01-02 Yamato Kogyo Kk Plastics cover for piping
GB2228020A (en) * 1988-12-29 1990-08-15 Bridon Plc Jackets for cables and the like
GB2228020B (en) * 1988-12-29 1992-11-18 Bridon Plc Jackets for cables and the like
US5262120A (en) * 1991-06-19 1993-11-16 Societe Anonyme Dite: Aerospatiale Societe Nationale Industrielle Method of manufacturing a protective sheath
US5505230A (en) * 1992-03-19 1996-04-09 Proprietary Technology, Inc. Means for protecting conducting equipment
WO1994023238A1 (en) * 1993-03-30 1994-10-13 Hutchinson Thermal insulation sheath for pipes and method of manufacture
US5611374A (en) * 1993-03-30 1997-03-18 Hutchinson Thermally insulating pipe lagging and method of manufacture
GB2345535A (en) * 1999-01-07 2000-07-12 Smiths Industries Plc Ventilation ducting with interlocking strip members
GB2345535B (en) * 1999-01-07 2003-01-15 Smiths Industries Plc Ventilation ducting with interlocking strips
DE10240911A1 (en) * 2002-09-04 2004-03-18 Valeo Klimasysteme Gmbh Device for enclosing of at least one pipe, especially for use in motor vehicle's heating, ventilating and/or conditioning system, comprises two elements which when fitted together permanently define space around pipe
WO2018152564A1 (en) * 2017-02-22 2018-08-30 Mark Illingworth Taylor Insulation production and installation methods and assemblies
USD900983S1 (en) 2019-02-20 2020-11-03 Ipex Technologies Inc. Secondary double containment pipe
EP3865674A1 (en) * 2020-02-14 2021-08-18 General Electric Company Protective sleeve for a component of a turbine engine and method of installing the same
US11243119B2 (en) 2020-02-14 2022-02-08 General Electric Company Protective sleeve for a component of a turbine engine and method of installing the same
CN115143346A (en) * 2022-06-14 2022-10-04 浙江地球管业有限公司 Anti-freezing water supply pipe convenient to assemble and assembling method thereof

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee