GB2287262A - Inserting insulation into lintel - Google Patents

Inserting insulation into lintel Download PDF

Info

Publication number
GB2287262A
GB2287262A GB9505047A GB9505047A GB2287262A GB 2287262 A GB2287262 A GB 2287262A GB 9505047 A GB9505047 A GB 9505047A GB 9505047 A GB9505047 A GB 9505047A GB 2287262 A GB2287262 A GB 2287262A
Authority
GB
United Kingdom
Prior art keywords
lintel
channel portion
void
lid
discrete
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9505047A
Other versions
GB2287262B (en
GB9505047D0 (en
Inventor
John Coyle
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.)
Keystone Lintels Ltd
Original Assignee
Keystone Lintels Ltd
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
Priority claimed from GB9404811A external-priority patent/GB9404811D0/en
Application filed by Keystone Lintels Ltd filed Critical Keystone Lintels Ltd
Priority to GB9505047A priority Critical patent/GB2287262B/en
Publication of GB9505047D0 publication Critical patent/GB9505047D0/en
Publication of GB2287262A publication Critical patent/GB2287262A/en
Application granted granted Critical
Publication of GB2287262B publication Critical patent/GB2287262B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C2003/023—Lintels

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)

Abstract

A lintel (10) has the void of its channel portion (12) filled with an insulation material formed of bonded discrete filler material for example expanded polystyrene beads (16) or thermoplastic or hollow glass microspheres. The lintel is inverted in a jig, and discrete filler and adhesive injected through nozzles, with lid (20) used to contain the mixture. <IMAGE>

Description

LINTELS This invention relates to an improved lintel of the type formed from metal sheet into a substantially top hat vertical cross-sectional profile having two planar portions separated by a channel portion, the channel portion being filled with an insulation material whose function is to prevent cold bridging.
Presently, there are two methods of providing insulation material into the channel portion. A first method inserts preformed sheets or blocks of expanded polystyrene board into the void of the channel portion. A disadvantage of this method is that the board does not always fill fully the void in the channel portion and therefore cold bridging can still occur in those instances, defeating the function of providing the insulation material. A second method inserts liquid polyurethane mixture which foams and expands to completely fill the void however is disadvantageous due to the toxic nature of the chemicals involved and therefore not environmentally-friendly as well as being difficult to handle.
Ah object of the present invention is to provide a lintel having insulation material in the void of its channel portion, the insulation material being inserted by a method which obviates or mitigates the disadvantages of the methods heretofore.
Accordingly, a first aspect of the present invention is a method of inserting insulation material into the void of a channel portion of a lintel of the type stated, the method comprising the steps of inverting the lintel and closing off the ends of the channel portion with wall members, introducing into the channel portion a fluent mixture of a filler of discrete material and a bonding agent to fill or substantially fill the void, closing off the top opening to the channel portion with a lid, and removing the lid from the opening.
Preferably, the method further includes the step of locating the lintel in ajig and providing the wall members, each lintel being positioned in the jig in an inverted position.
Further, a second aspect of the present invention is a lintel having the void of its channel portion filled with an insulation material formed of bonded discrete filler material. The discrete filler material is preferably expanded polystyrene beads or thermoplastic or glass microspheres.
The bonding agent is preferably an adhesive. Alternatively, the bonding agent is a liquid mixture of, for example polyurethene foam, which foams after location in the void to fill in any spaces among the discrete material.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawing which shows schematically a cross-sectional view of a lintel located in ajig and having a lid positioned over the opening thereof.
Referring to the drawing, a lintel 10 of the type stated has the void of its channel portion 12 filled with an insulation material formed of foam adhered discrete filler material, for example expanded polystyrene beads 16, or thermoplastic or hollow glass microspheres.
A method of inserting the insulation material into the void of the channel portion 12 of the lintel 10 comprises the steps of inverting the lintel and closing off the ends of the channel portion 12 with wall members 14 introducing a fluent mixture of a discrete filler material such as expanded polystyrene beads 16 and an adhesive through the top opening of the closed-off inverted channel portion 12 to fill or substantially fill the void, closing off the top opening 18 to the channel portion 12 with a lid 20, and removing the lid 20 from the opening 18.
The lid 20 and wall members 14 are lined with a poly-vinyl-chloride (P.V.C.) tape.
For the method to be performed, the lintel 10 is positioned in ajig 26 providing the wall members 14, each lintel 10 in turn being positioned in the jig 26 in an inverted position and removed therefrom when the method is completed.
The size of the expanded polystyrene beads is preferably within the range 2 to 4 mm diameter, and the adhesive is, for example a polyurethane based adhesive, preferably a type stored in two parts, one part of which is a curer/hardener, and the other part is polyurethane.
The mixture is introduced into the channel portion by a supply pipe terminating in a nozzle gun, the supply pipe feeding from a mixing apparatus with tanks/reservoirs holding separately the two parts of the adhesive and a supply of discrete filler material.
An on/off control is provided on the gun.
Alternatively, one or more inlets can be provided in the lid which is located over the opening before the mixture is introduced, the number and spacing of inlets provided depending on the length of the lintel being insulated, the flow rate of the mixed adhesive and beads in the channel portion 12 and the spread of the mixture in the channel portion 12. The beads require to be compacted together and the mixture is fed into the void under pressure.
In a preferred modification, the bonding agent is a liquid mixture of polyurethane foam, used as an adhesive, which after location in the void foams to fill in any spaces among the discrete material and consolidates and compacts the discrete material in the channel portion. In the method, the lid is removed after the foaming process is completed. The polyurethane foam is also of a type stored in two parts, one part being a curer/hardener such as diphenylmethane di-iso-cyanate or MDI and the other part being for example a blend of polyurethanes, a surfactant and a sequestering agent, the blend being determined to obtain the required foaming characteristics to provide a fast acting foaming property and to give a rigid foam.
The method described above is for single production of an insulated lintel. The method can be mechanised into a conveyor system.
Variations and other modifications can be made without departing from the scope of the invention described above and as claimed hereinafter.

Claims (14)

1. A method of inserting insulation material into the void of a channel portion of a lintel of the type stated, the method comprising the steps of inverting the lintel and closing off the ends of the channel portion with wall members, introducing into the channel portion a fluent mixture of a filler of discrete material and a bonding agent to fill or substantially fill the void, closing off the top opening to the channel portion with a lid, and removing the lid from the opening.
2. A method as claimed in Claim 1, wherein the steps further include locating the lintel in ajig providing the wall members, each lintel being positioned in the jig in an inverted position.
3. A method as claimed in Claim 1 or 2, wherein the fluent mixture is introduced into the void through inlets in the lid when positioned over the opening.
4. A method as claimed in Claim 1 or 2, wherein the fluent mixture is introduced into the void by pouring from a supply pipe having a nozzle gun prior to the opening being closed by the lid.
5. A lintel ofthe type stated having the void of its channel portion filled with an insulation material formed of bonded discrete filler material.
6. A lintel as claimed in Claim 5, wherein the discrete filler material is expanded polystyrene beads.
7. A lintel as claimed in Claim 6, wherein the size of the expanded polystyrene beads lies within the range 2 to 4 mm diameter.
8. A lintel as claimed in Claim 5, wherein the discrete filler material is thermoplastic or hollow glass microspheres.
9. A method as claimed in any one of Claims 1 to 4, wherein the bonding agent is a polyurethane based adhesive.
10. A method as claimed in any one of Claims 1 to 4, wherein the bonding agent is a polyurethane foam used as an adhesive.
11. A lintel as claimed in any one of Claims 5 to 8, wherein the discrete filler material is bonded using a bonding agent consisting of a polyurethane based adhesive.
12. A lintel as claimed in any one of Claims 5 to 8, wherein the discrete filler material is bonded using a bonded agent consisting of a polyurethane foam used as an adhesive.
13. A lintel substantially as hereinbefore described with reference to the accompanying drawing
14. A method of inserting insulation material into the void of a channel portion of a lintel substantially as hereinbefore described.
GB9505047A 1994-03-11 1995-03-13 Lintels Expired - Fee Related GB2287262B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9505047A GB2287262B (en) 1994-03-11 1995-03-13 Lintels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9404811A GB9404811D0 (en) 1994-03-11 1994-03-11 Lintels
GB9505047A GB2287262B (en) 1994-03-11 1995-03-13 Lintels

Publications (3)

Publication Number Publication Date
GB9505047D0 GB9505047D0 (en) 1995-05-03
GB2287262A true GB2287262A (en) 1995-09-13
GB2287262B GB2287262B (en) 1997-03-26

Family

ID=26304479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9505047A Expired - Fee Related GB2287262B (en) 1994-03-11 1995-03-13 Lintels

Country Status (1)

Country Link
GB (1) GB2287262B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343687A (en) * 1998-11-12 2000-05-17 Keystone Lintels Ltd Plastic lintel with metal reinforcement
GB2457538A (en) * 2008-02-19 2009-08-26 Christopher Jon Massey Closing assembly for closing the end of a passage
GB2620231A (en) * 2022-04-13 2024-01-03 Keystone Lintels Ltd Method for filling a cavity in a building component and a building component

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274293A (en) * 1992-06-02 1994-07-20 Catnic Ltd Lintel with insulation and keying means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274293A (en) * 1992-06-02 1994-07-20 Catnic Ltd Lintel with insulation and keying means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343687A (en) * 1998-11-12 2000-05-17 Keystone Lintels Ltd Plastic lintel with metal reinforcement
GB2343687B (en) * 1998-11-12 2002-09-18 Keystone Lintels Ltd Lintels
GB2457538A (en) * 2008-02-19 2009-08-26 Christopher Jon Massey Closing assembly for closing the end of a passage
GB2457538B (en) * 2008-02-19 2012-08-22 Christopher Jon Massey Closing assembly
GB2620231A (en) * 2022-04-13 2024-01-03 Keystone Lintels Ltd Method for filling a cavity in a building component and a building component

Also Published As

Publication number Publication date
GB2287262B (en) 1997-03-26
GB9505047D0 (en) 1995-05-03

Similar Documents

Publication Publication Date Title
US5972260A (en) Process for vacuum foaming of panels
US3137744A (en) Refrigerating apparatus
US3310615A (en) Method for plugging pipe
HU180099B (en) Method for penoplastic material by means of injection mo
US5900198A (en) Method of producing molded resin product
PL356628A1 (en) Multiple-component locally foamed system, application thereof and method of sealing using that system
GB2287262A (en) Inserting insulation into lintel
US4012822A (en) System for sealing and repairing leaks in ruptured containers
KR102019358B1 (en) Filling system for filling a urethane foam composition for insulation into a profile and filling method using the same
US7094299B2 (en) Method for robotically applying large volumes of structural foam within automotive applications
US4067759A (en) System for sealing and repairing leaks in ruptured containers
US4058234A (en) System for sealing and repairing leaks in ruptured containers
ES8301759A1 (en) Process for obtaining cellular materials based on unsaturated polyester resins
JPH05113288A (en) Heat insulating box and manufacture thereof
GB2140143A (en) Method of filling a cavity with foamed material
KR101406844B1 (en) Method for urethane foaming using Insulation box for urethane foaming
JPS61205109A (en) Method of filling foam
JP3989322B2 (en) Manufacturing method of RIM molded product
JPS62279909A (en) Manufacture of sandwich-panel
US4129935A (en) Method of making a molded support for an object using a self-closing valve
US5096517A (en) Process of sound insulation of hollow bodies
JPH03269080A (en) Sealed pillar and sealing of cavity in pillar
JP2007030850A (en) Hollow member, storage vessel and formation method for foamable reinforcing agent
JP4489751B2 (en) Manufacturing method of RIM molded product
JP2797143B2 (en) Side hole embedding method

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000313