US2797731A - Method for preventing moisture condensation on cold pipes - Google Patents

Method for preventing moisture condensation on cold pipes Download PDF

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Publication number
US2797731A
US2797731A US538926A US53892655A US2797731A US 2797731 A US2797731 A US 2797731A US 538926 A US538926 A US 538926A US 53892655 A US53892655 A US 53892655A US 2797731 A US2797731 A US 2797731A
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tape
pipes
cold
foamed polystyrene
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US538926A
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Jr Frank A Carlson
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Monsanto Chemicals Ltd
Monsanto Chemical Co
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Monsanto Chemicals Ltd
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    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/08—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically
    • B29C63/10—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/06—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
    • 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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • F16L58/1063—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sheet wrapped around the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • 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
    • 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
    • F16L59/026—Mattresses, mats, blankets 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
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/027—Bands, cords, strips or the like for helically winding around a cylindrical object
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S138/00—Pipes and tubular conduits
    • Y10S138/09—Cellular
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/1033—Flexible sheet to cylinder lamina
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y10T428/1393—Multilayer [continuous 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249976—Voids specified as closed
    • Y10T428/249977—Specified thickness of void-containing component [absolute or relative], numerical cell dimension or density

Definitions

  • the present invention relates to a method for preventing the condensation of moisture on cold pipes, e. g., cold water pipes. More particularly, this invention relates to an inexpensive method for preventing the condensation of moisture on cold water pipes than can be practiced by the home owner without the necessity of purchasing special tools.
  • FIG. 1 illustrates a pipe carrying a helical wrapping of insulating tape
  • Fig. 2 illustrates a pipe carrying a cylindrical insulating jacket prepared from a single length of insulating tape.
  • the foamed polystyrene tape employed must have a thickness of less than about 0.1 inch, have a density of less than 6 lbs. per cubic foot and have a closed cell structure in which the majority of the cells have the diameter of less than 0.05 inch.
  • FIG. l a strip of foamed polystyrene tape 12 is wrapped around pipe in a helical pattern.
  • the edges 14--14 of tape 12 are simply butted together. This type of wrapping is satisfactory for nearly all purposes, but improved insulation can be obtained by overlapping the edges of the tape in a known manner.
  • the ends of the polystyrene tape are fastened to the wrapped pipe with pressure sensitive adhesive tape.
  • a strip of pressure sensitive adhesive tape 26 is placed over the overlapping joint 24 thereby sealing the insulating jacket of foamed polystyrene tape.
  • This wrapping pattern is particularly well adapted to the insulation of pipes attached in close proximity to floor joists in private homes where space limitations make it virtually impossible to install other types of insulation or a to wrap the foamed polystyrene tape. on the pipe in Va helical pattern.
  • Example A test of the method was made during three summer months in a cellar of a private dwelling in which the relative humidity of the cellar frequently reached at 85 F.
  • the dwelling contained approximately feet of /2 inch copper cold water lines and moisture condensation and water dripping from the pipes was a constant problem.
  • the flexible foamed polystyrene tape employedin the practice of the present invention has a density of less than 6 lbs. per cubic foot with a closed cell structure in which the diameter of a majority of the cells is less than about 0.05 inch and preferably less than about 0.005 inch.
  • the techniques for preparing foamed polystyrene having the desired density and cell structures are known, see Modern Plastics, Encyclopedia Issue, September 1954, page 481, Plastics Catalogue Corporation, Bristol, Conn.
  • the foamed polystyrene tape employed must have a thickness of less than about 0.1 inch.
  • the tape may be prepared by cutting thin sheets from blocks or logs of foamed polystyrene by known techniques.
  • a superior tape for the purpose of the present invention can be prepared in continuous lengths by the extrusion process described in copending application of Ardashus A. Aykanian and Frank A. Carlson, S. N. 538,837, filed October 6, 1955.
  • a method for preventing the condensation of water on cold pipes which comprises wrapping the cold pipe with a foamed polystyrene tape, said tape being less than 0.1 inch thick, having a density of less than 6 lbs. per cubic foot and having a closed cell structure in which a majority of the cells have a diameter of less than about 0.05 inch.
  • a method for preventing the condensation of water on cold pipes attached in close proximity to floor joists which comprises placing a length of foamed polystyrene tape lengthwise on the pipe, the width of said tape being greater than the outer diameter of the pipe, wrapping said lengthwise positioned tape around the pipe to form an overlapping joint and sealing the overlapping joint with pressure sensitive adhesive tape; the foamed polystyrene tape employed being less than 0.1 inch thick, having a density of less than 6 lbs. per cubic foot and having a closed cell structure in which a majority of the cells have a diameter of less than about 0.05 inch.

Description

July 2, 1957 F. A. CARLSON, JR
METHOD FOR PREVENTING MOISTURE CONDENSATION ON COLD PIPES Filed Oct. 6, 1955 FRANK A. CARLSON JR.
INVENTOR.
AT TO R E Y 2,797,731 i at e nted July 2, 1957 METHOD FOR PREVENTING MOISTURE CONDENSATION ON COLD PIPES Frank A. Carlson, Jr., Springfield, Mass., assignor to Monsanto Chemical Company, St. Louis, Mo., a corporation of Delaware Application October 6, 1955, Serial No. 538,926
2 Claims. (Cl. 154-41) The present invention relates to a method for preventing the condensation of moisture on cold pipes, e. g., cold water pipes. More particularly, this invention relates to an inexpensive method for preventing the condensation of moisture on cold water pipes than can be practiced by the home owner without the necessity of purchasing special tools.
The problem of moisture condensation on cold water pipes with the accompanying dripping of said water onto the cellar floor is a major annoyance to untold numbers of home owners. The problem is one of long standing in the art and for which no really good solution has been proposed. Lagging of cold water pipes with asbestos tape aflords partial relief to the problem, but inasmuch as the asbestos tape is porous in nature water vapor can pass therethrough. In time the asbestos tape becomes saturated with condensed water which then drips on the cellar floor.
It is an object of this invention to provide an improved method for preventing condensation of water on cold pipes.
Other objects and advantages of this invention will become apparent from the following detailed description thereof when read in conjunction with the accompanying drawing in which Fig. 1 illustrates a pipe carrying a helical wrapping of insulating tape, and
Fig. 2 illustrates a pipe carrying a cylindrical insulating jacket prepared from a single length of insulating tape.
It has been discovered that the condensation of water on cold pipes can be eliminated by wrapping said pipes with a flexible foamed polystyrene tape. The foamed polystyrene tape employed must have a thickness of less than about 0.1 inch, have a density of less than 6 lbs. per cubic foot and have a closed cell structure in which the majority of the cells have the diameter of less than 0.05 inch.
The attached drawings illustrate two methods in which a cold pipe may be covered with flexible foamed polystyrene tape. In Fig. l a strip of foamed polystyrene tape 12 is wrapped around pipe in a helical pattern. In the embodiment illustrated, the edges 14--14 of tape 12 are simply butted together. This type of wrapping is satisfactory for nearly all purposes, but improved insulation can be obtained by overlapping the edges of the tape in a known manner. The ends of the polystyrene tape are fastened to the wrapped pipe with pressure sensitive adhesive tape.
In Fig. 2 a single length of foamed polystyrene tape 22 having a width greater than the outer diameter of pipe 20, is placed lengthwise around pipe 20 to form an overlapping joint 24. A strip of pressure sensitive adhesive tape 26 is placed over the overlapping joint 24 thereby sealing the insulating jacket of foamed polystyrene tape. This wrapping pattern is particularly well adapted to the insulation of pipes attached in close proximity to floor joists in private homes where space limitations make it virtually impossible to install other types of insulation or a to wrap the foamed polystyrene tape. on the pipe in Va helical pattern.
Example A test of the method was made during three summer months in a cellar of a private dwelling in which the relative humidity of the cellar frequently reached at 85 F. The dwelling contained approximately feet of /2 inch copper cold water lines and moisture condensation and water dripping from the pipes was a constant problem.
In the test approximately one half the length of the cold water pipes was left unwrapped and the remainder of the line was wrapped with a A inch thick tape of foamed polystyrene having a density of 4 lbs. per cubic foot and having a closed cell structure in which the diameter of a majority of the cells was less than about 0.005 inch. The foamed polystyrene tape employed was prepared by the extrusion method described in copending application of Ardashus A. Aykanian and Frank A. Carlson, S. N. 538,837, filed October 6, 1955. The foamed polystyrene was wrapped on the pipes in the pattern illustrated in Fig. 2. No condensation was observed on the wrapped cold water lines throughout the test period, whereas the unwrapped cold water lines dripped practically constantly.
The flexible foamed polystyrene tape employedin the practice of the present invention has a density of less than 6 lbs. per cubic foot with a closed cell structure in which the diameter of a majority of the cells is less than about 0.05 inch and preferably less than about 0.005 inch. The techniques for preparing foamed polystyrene having the desired density and cell structures are known, see Modern Plastics, Encyclopedia Issue, September 1954, page 481, Plastics Catalogue Corporation, Bristol, Conn. To be operable in the practice of this invention, the foamed polystyrene tape employed must have a thickness of less than about 0.1 inch. The tape may be prepared by cutting thin sheets from blocks or logs of foamed polystyrene by known techniques. Alternatively, a superior tape for the purpose of the present invention can be prepared in continuous lengths by the extrusion process described in copending application of Ardashus A. Aykanian and Frank A. Carlson, S. N. 538,837, filed October 6, 1955.
The above description and particularly the drawings and example are set forth by way of illustration only. It will be obvious to those skilled in the art that many variations and departures therefrom can be made without departing from the spirit and scope of the invention herein described.
What is claimed is:
1. A method for preventing the condensation of water on cold pipes which comprises wrapping the cold pipe with a foamed polystyrene tape, said tape being less than 0.1 inch thick, having a density of less than 6 lbs. per cubic foot and having a closed cell structure in which a majority of the cells have a diameter of less than about 0.05 inch.
2. A method for preventing the condensation of water on cold pipes attached in close proximity to floor joists, which comprises placing a length of foamed polystyrene tape lengthwise on the pipe, the width of said tape being greater than the outer diameter of the pipe, wrapping said lengthwise positioned tape around the pipe to form an overlapping joint and sealing the overlapping joint with pressure sensitive adhesive tape; the foamed polystyrene tape employed being less than 0.1 inch thick, having a density of less than 6 lbs. per cubic foot and having a closed cell structure in which a majority of the cells have a diameter of less than about 0.05 inch.
(References on following page) References Cited in the file of this patent UNITED STATES PATENTS Jacobs Feb. 3, 1920 Blair et a1. Aug. 5, 1941 Billingham July 8, 1952 Jaye Sept. 13, 1955 4 OTHER REFERENCES Plastics vs. Heat and Cold, article appearing in Modern Plastics (vol. 32, No. 4, December 1954, pages 91, 92,
5 and 198 of interest).
US538926A 1955-10-06 1955-10-06 Method for preventing moisture condensation on cold pipes Expired - Lifetime US2797731A (en)

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936792A (en) * 1955-10-14 1960-05-17 Jet Heet Inc Flexible foam-plastic insulated duct
US3007203A (en) * 1958-09-23 1961-11-07 Walter D Ammons Method of molding a foam plastic article having a skin on its outer surfaces
US3054523A (en) * 1959-02-02 1962-09-18 Gen Am Transport Field storage tanks
US3112771A (en) * 1961-01-31 1963-12-03 Richard G Bringolf Resilient lining for light weight hose
US3128895A (en) * 1964-04-14 Protective wrappers for breakable articles
US3130753A (en) * 1962-04-26 1964-04-28 Aeroquip Corp Floating swimming pool hose
US3137120A (en) * 1963-05-22 1964-06-16 Western Electric Co Cable fabrication
US3157204A (en) * 1960-10-19 1964-11-17 Morris T Phillips Insulating and protective covering devices
US3285800A (en) * 1963-02-25 1966-11-15 Armstrong Cork Co Cushioning and wrapping laminate
US3311937A (en) * 1966-03-03 1967-04-04 William C Conroy Method of making a scuff type slipper
US3332814A (en) * 1966-03-01 1967-07-25 Fujikura Ltd Method for producing coaxial cable
US3658614A (en) * 1969-12-22 1972-04-25 Ppg Industries Inc Method for wrapping molded pipe insulation
US3717527A (en) * 1967-09-29 1973-02-20 Benteler Werke Ag Method of making an insulated tube
US3770556A (en) * 1970-08-07 1973-11-06 Reychem Corp Wraparound closure sleeve
US4053676A (en) * 1975-07-18 1977-10-11 Litton Industries, Inc. Handle grip material
US4704315A (en) * 1977-09-29 1987-11-03 Morgan Adhesives Co. Composite pressure sensitive seal adhesive construction
FR2606389A1 (en) * 1986-11-06 1988-05-13 Davrain Sa Andre Method for fixing a covering, which has the form of a tape, to a substantially cylindrical body, means for implementing this method and cylindrical bodies equipped according to the method
US4842908A (en) * 1987-09-15 1989-06-27 Venture Tape Corp. Insulation with tape adhering surface
US4946732A (en) * 1987-09-15 1990-08-07 Venture Tape Corp. Insulation with tape adhering surface
US5090149A (en) * 1989-07-04 1992-02-25 Young Muk Kim Decorated pipe for fishing rod and method for making same
US5104701A (en) * 1987-09-15 1992-04-14 Venture Tape Corp. Insulation with tape adhering surface and tape therefor
FR2688863A1 (en) * 1992-03-18 1993-09-24 Gertin Ste Civile Thermally insulated tube
FR2704157A1 (en) * 1993-04-20 1994-10-28 Ies Ap Erables Bw Process for removing condensation water and means for such a process
US5722462A (en) * 1984-04-25 1998-03-03 Dridi; Hamadi Flexible heat insulated fluid conduit
US5736211A (en) * 1994-03-24 1998-04-07 Compac Corporation Butt strip tape for insulation application
US5930431A (en) * 1997-12-31 1999-07-27 Siecor Operations, Llc Fiber optic cable
US20030215612A1 (en) * 2002-05-17 2003-11-20 Richards Chester L. Thin-sheet insulation material and its use
US20090159146A1 (en) * 2007-12-21 2009-06-25 Shawcor Ltd. Styrenic insulation for pipe
US20100043906A1 (en) * 2008-07-25 2010-02-25 Shawcor Ltd. High temperature resistant insulation for pipe
US20100154916A1 (en) * 2008-12-22 2010-06-24 Shawcor Ltd. Wrappable styrenic pipe insulations
US20140154605A1 (en) * 2012-12-05 2014-06-05 Utc Power Corporation Fuel cell device and method of managing moisture within a fuel cell device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1329409A (en) * 1919-11-06 1920-02-03 Johns H V Manville Co Flexible pipe-covering
US2251318A (en) * 1937-12-17 1941-08-05 Mishawaka Rubber & Woolen Mfg Cushioning facility for seats and the like
US2602764A (en) * 1949-09-09 1952-07-08 Milton C J Billingham Insulation for pipes, conduits, and the like
US2717848A (en) * 1953-07-17 1955-09-13 Jaye Corp Pipe covering

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1329409A (en) * 1919-11-06 1920-02-03 Johns H V Manville Co Flexible pipe-covering
US2251318A (en) * 1937-12-17 1941-08-05 Mishawaka Rubber & Woolen Mfg Cushioning facility for seats and the like
US2602764A (en) * 1949-09-09 1952-07-08 Milton C J Billingham Insulation for pipes, conduits, and the like
US2717848A (en) * 1953-07-17 1955-09-13 Jaye Corp Pipe covering

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128895A (en) * 1964-04-14 Protective wrappers for breakable articles
US2936792A (en) * 1955-10-14 1960-05-17 Jet Heet Inc Flexible foam-plastic insulated duct
US3007203A (en) * 1958-09-23 1961-11-07 Walter D Ammons Method of molding a foam plastic article having a skin on its outer surfaces
US3054523A (en) * 1959-02-02 1962-09-18 Gen Am Transport Field storage tanks
US3157204A (en) * 1960-10-19 1964-11-17 Morris T Phillips Insulating and protective covering devices
US3112771A (en) * 1961-01-31 1963-12-03 Richard G Bringolf Resilient lining for light weight hose
US3130753A (en) * 1962-04-26 1964-04-28 Aeroquip Corp Floating swimming pool hose
US3285800A (en) * 1963-02-25 1966-11-15 Armstrong Cork Co Cushioning and wrapping laminate
US3137120A (en) * 1963-05-22 1964-06-16 Western Electric Co Cable fabrication
US3332814A (en) * 1966-03-01 1967-07-25 Fujikura Ltd Method for producing coaxial cable
US3311937A (en) * 1966-03-03 1967-04-04 William C Conroy Method of making a scuff type slipper
US3717527A (en) * 1967-09-29 1973-02-20 Benteler Werke Ag Method of making an insulated tube
US3658614A (en) * 1969-12-22 1972-04-25 Ppg Industries Inc Method for wrapping molded pipe insulation
US3770556A (en) * 1970-08-07 1973-11-06 Reychem Corp Wraparound closure sleeve
US4053676A (en) * 1975-07-18 1977-10-11 Litton Industries, Inc. Handle grip material
US4704315A (en) * 1977-09-29 1987-11-03 Morgan Adhesives Co. Composite pressure sensitive seal adhesive construction
US5722462A (en) * 1984-04-25 1998-03-03 Dridi; Hamadi Flexible heat insulated fluid conduit
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