GB2451273A - Insulation system for ducts - Google Patents

Insulation system for ducts Download PDF

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Publication number
GB2451273A
GB2451273A GB0714541A GB0714541A GB2451273A GB 2451273 A GB2451273 A GB 2451273A GB 0714541 A GB0714541 A GB 0714541A GB 0714541 A GB0714541 A GB 0714541A GB 2451273 A GB2451273 A GB 2451273A
Authority
GB
United Kingdom
Prior art keywords
insulation
duct
flange
bars
ducts
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.)
Withdrawn
Application number
GB0714541A
Other versions
GB0714541D0 (en
Inventor
Gordon James Harris
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0714541A priority Critical patent/GB2451273A/en
Publication of GB0714541D0 publication Critical patent/GB0714541D0/en
Priority to PCT/GB2008/002526 priority patent/WO2009013493A1/en
Priority to GB1000636.9A priority patent/GB2463219B/en
Priority to US12/452,867 priority patent/US20110113719A1/en
Publication of GB2451273A publication Critical patent/GB2451273A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0254—Ducting arrangements characterised by their mounting means, e.g. supports
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
    • E04F17/026—Exterior cladding, e.g. of chimney parts extending above the roof; Rain covers for chimney tops without draught-inducing aspects
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/32—Supports for air-conditioning, air-humidification or ventilation units

Abstract

An insulation system in which 'T' bars are attached to rectangular ducts. The 'T' bars can be pre fitted with locating dowels (or dowels can be fitted during assembly). The 'T' bars allow rapid assembly of rigid insulation to the duct and securely locate them. The system can be adapted for vertical ducts as well as horizontal ducts. Insulated Flange Breathers can be incorporated to allow the release of any pressurised air leaking through the flange to escape to atmosphere. External Insulation is protected by rigid capping (retained by strapping) to its top surface and with flexible or rigid waterproof coverings to side and bottom surfaces. Additional 'slabfix' adaptors can be used where required to further retain the insulation slabs, particularly on large ducts. The system can be used for internal as well as external ducts.

Description

I
STATEMENT OF INVENTION
DUCTSHEILD EXTERNAL INSULATION SYSTEM
The present invention comprises a method of frxing rigid insulation slabs or panels to rectangular ductwork using a combination of preset dowels, mounted "r' bars and strapping. These facilitate quick assembly of the insulation slabs and hold them securely in place during and on completion of fitting.
* A rigid protective capping is applied over the top surface of the insulation panels to prevent birds and rodents from accessing the insulation beneath. The capping is retained by straps at regular intervals and can also be mechanically fixed, if desired.
By using a combination of rigid insulation panels and protective capping, the invention can be rc-inforced where necessary to take light foot traffic.
The DuctShield system also incorporates a flange breather' which allows air from inside of the ductwork to escape to atmosphere, when a flange seal is or becomes defective. The flange breather' discharges the air through a non return valve which is designed to prevent moisture penetration and to release pressure between the ductwork surface and the inside of the insulation.
BAcK(; ROUND This invention relates to an insulation system for external rectangular ductwork.
Duct-work carrying heated or cooled air requires insulation in order to maintain temperatures within the ductwork. The insulation increases the efficiency of the healing or cooling systems by reducing the amount of energy required to maintain temperature at the point of delivery.
Current methods of fixing insulation to ductwork can be time consuming and often rely on adhesives and tape to retain the insulation. Moisture penetration through the insulation caused by condensation or rain can cause the adhesive or tapes to fail resulting in delamination of the insulation from the ductwork.
Birds and rodents frequently penetrate the external vapour barriers of existing systems, allowing moisture ingress and accelerating the failure of the insulation fixings.
Also, most external insulation is not designed to be walked on' but this invariably happens. Foot traffic on top of the insulation usually puts pressure on the scams between insulation panels and once these split the outer covering or cladding, moisture is allowed in to the insulation beneath, causing it to degrade over time.
If the insulation degrades or de-laminates from the duct, more energy is required to maintain temperatures at the point of delivery or in worst cases the system fails to operate correctly.
External ductwork is usually located on flat roofs of modern buiklings particularly offices and industrial buildings. This means it is extremely exposed to the weather and any weakness in the insulation system can lead to rapid deterioration and dc-lamination of the insulation slabs. a
ADVANTAGES
* The method of locating and retaining the rigid insulation slabs via doweled T' bars and strapping virtually eliminates the possibility of them coming detached from the ductwork. As a large proportion of ductwork is located on roofs of buildings this is particularly important to prevent injury to pedestrians from fragments of insulation becoming detached from the ductwork.
* By pre-mounting the locating dowels on T' bars in the factory, the system reduces the reliance on skilled labour to fit the insulation.
* The T' bars fitted to the top two corners of the duct, support the edges or corners of the top insulation slab thus minimising the possibility of damage to this otherwise unsupported area, particularly if the insulation is subjected to foot traffic.
* The combination of rigid insulation and protective capping prevents damage to the waterproof membrane on the top surface of the insulation by birds or rodents.
* The system can easily be adapted to accept light foot traffic without damage to the insulation beneath.
* The system does not rely on adhesive to retain the insulation slabs and can therefore be assembled even in damp conditions.
* The DuctShield system incorporates flange breathers'. These are fitted around each flange (connecting ductwork sections together). If the flange seal leaks air from inside of the ductwork, this can build up pressure in normal systems causing the msulation to dc-laminate and fall off or blowup like balloon. The Duc&idd lange breathe? avoids iFi.is pussiuiuiy uy auuwnig picssuiiscu.w. w Lu aunuspheic, without allowing moisture in.
DESCRIPTION AND METHOD OF ASSEMBLY WITH
REFERENCE TO THE ACCOMPANYING DRAWINGS
Page 4, Fig I shows a fully completed DuciShield insulation system fitted to rectangular ductwork.
Page 5, Figs 1, 2 & 3 shows an assembled flange breather.
Page 6, Figs 1, 2, 3 & 4 shows a "1" bar pre fitted with locating dowels.
Page 7, Figs 1 & 2 shows mini T' bars fitted to the inside bend of a duct (Fig 3) and outside bend of a duct (Fig 4).
Page 8, Fig 1 shows T' bars fitted to straight sections of duct and mini T' bars fitted to a bend in the duct.
Page 9, Fig 1 shows 2 bare rectangular duct sections joined together by a flange.
Page 9, Fig 2 shows a flange breather attached to the duct and fitted around the flange.
Page 9, Fig 3 shows the T' bars fitted to all four corners of the bare duct together with the flange breather.
Page 10, Fig I shows the lower rigid insulation slab being attached to the underside of the duct.
Page 10, Fig 2 shows two insulation slabs being fitted to each side of the duct.
Page 11, Fig I shows the top insulation slab being fitted to the duct.
Page ii, Fig 2 shows the rigid protective capping being applied over the top surface of the duct.
Page 12, Figs 1, 2 & 3 shows an optional slabfix' adaptor to attach insulation slabs to the duct.
On page 4, Fig 1, a completed DuctShield Insulation System is shown. The rigid, pre formed capping 1 is fitted over the top insulation slab and retained with fixing straps 2 which go under the duct and connect to the other side of the capping 1.
The outer surface of the insulation slabs 3 are covered with a waterproof membrane which can be factory fitted or fitted on site. The waterproof membrane can be flexible or rigid. Joints between the membrane and insulation slabs can be sealed with tape or mastic.
Prior to the strapping being applied, reinforcement angle 4 is fitted to the bottom corners of the insulation slabs to protect them from damage when the straps are tensioned.
If the ducts, and consequently, the insulation slabs are large and/or additional mechanical fixing is required the slabfix' adaptors 5 may be used.
Page 5, Figs 1, 2 & 3 show an Insulated Flange Breather' device which is fitted around each flange prior to other operations commencing: The Insulated Flange Breather comprises of four insulation segments 1 which have been pre slotted' 2, so as not to foul the flange and its fixings. The insulation segments can be prc-cut at the factory or cut on site (from pre slotted lengths of insulation supplied).
The insulations segments arc attached to the duct 3 using mini T' bars -not shown (page 7, Figs 1 & 2) using the same procedure as for assembly of the main insulation slabs (Page 10, Figs I &2 & Page 11, Figs 1 & 2). Four plugs 4 are then inserted to cover the exposed slots. A hole 5 is then punched in the centre of the lower slab (or this can be done prior to assembly) and a non return valve -not shown -is inserted in this hole. The non return valve setting will be adjusted (or pre set) to slightly more than that of atmospheric pressure. inus, any increase in pressure caused oy a ieaiung riange wilt be released to atmosphere. At the same time, air from outside which will normally be at a different temperature, will not be allowed into the Insulated Flange Breather to cause possible condensation on the flange and subsequent corrosion.
A rigid flat sheet 6 is fitted the full width and length of the top msulation segment prior to fitting the rigid capping 7. The ngid capping is narrower than, but overlaps, the flat sheet, as shown, such that when the adjacent cappings are fitted, the edges of these rest on the flat sheet 6 and are butted up to the capping 7, on the Insulated Flange Breather. Mastic will be applied to the flat sheet prior to cappings being fitted to ensure a strong waterproof seal that will accept light foot traffic. A rigid angle 8 is then fitted to the bottom two corners of the insulation segments, pnor to connecting and tensioning the * retaining strap 9. A strap locking device 10 holds the loose end of the strap against itself after it has been looped through its clip 11. Alternative strapping connectors/tensloners can be used providing a secure locking mechanism is incorporated.
Page 6, Fig I shows a T' bar 1 which is normally pre fitted with dowels 2 at the factory. However, the 1" bar can be supplied piain with pre-drilled holes to accommodate the dowels, with the dowels supplied loose. This can sometimes facilitate the retention of the insulation slab -see page 10, Fig 1. It is likely that both pre-doweled T' bars and plain T' bars will be available to site assembly operatives.
Page 6, Fig 2 shows a close up of the dowel which fits through a clearance hole in the T' bar and is retained on its under or over side by a spring clip 4 Fig 3 which sits in an undercut 3 (Fig 2) in the dowel.
Page 6, Fig4 -T' bars 1 arc fixed to all four corners of the bare ductwork 5 and can be retained by screw 6, rivet, adhesive, adhesive pads or other means.
In this application, the T' bars are used in conjunction with an external insulation system. However, they can also be used to locate and retain rigid insulation slabs for internal applications. 1)
ragc i, i ig i e z. siiow a ivmu I uai i wllusc truss scuouai wrneiisioiis rLg 2) are identical to those of the T' bar.
The Mini T bar' is fitted with the same size dowel 2 as the T' bar (normally one dowel per mini T bar) The Mini T bar' is used to facilitate the assembly and retention of the insulation segments used in the Insulated Flange Breather. It is also used for curved areas of ducting or areas of difficult or restricted access where a full T' bar cannot bc used.
Fig 3 shows Mini T bars' I fitted to an inside curve of the duct 4. The rigid insulation slab 5 is slotted on its inside face to accommodate the curve and is impaled onto the dowels 2 fitted to the Mini T bars' in the same way as the insulation slabs are fitted to straight sides of the duct reference page 10 Fig 2.
Fig 4 shows mini T bars' I fitted to an outside curve of the duct 4. Assembly of the slotted insulation slab 5 is as described for Fig 3 above.
As with the main T' bar, the dowels can be supplied loose for insertion through the hole in the plain Mini T bar', if desired.
It is likely that both pre-doweled and plain Mini 1' bars' will be available to assembly operatives.
Page 8, Fig I shows the T' bars 1 fitted to a straight section of duct and Mini T bars' 2 fitted to a curved section of the same duct. The T' bars are now ready to accept the fitting of rigid insulation slabs. See Method of Assembly'.
Method of Assembly Page 9, Fig 1 shows two straight section of bare ducts 1 joined together by means of a flange connection 2.
Fig 2. Insulated Flange Breathers 1 are first of all fitted to each flange.
Fig 3. T bars 1 are then fitted to each corner of the duct in the configurations shown e.g. dowels 2 vertical on two top corners and horizontal in QII of the lower corners. The other 1" bar to the final lower corner is plain with pre-drilled holes for dowels.
Page 10, Fig 1. The lower insulation slab 1 is firstly cut to size (or pre-cut at the factory) and should be the same width as the bottom of the bare duct. It is then offered up to the doweled T' bar 4 at a slight angle and then pushed onto the dowels at the same time as the loose end' is pushed up onto the base of the duct 5. Whilst holding up the loose end, dowels 2 are pushed through the holes in the plain T' bar and into the insulation slab, which can then be released.
The dowel 2 should be pushed as far as it will go e.g. when the shoulder of the dowel is against the edge of the plain T' bar. It is advisable to coat the ends of some of the loose dowels with adhesive before pushing them into the insulation slab, for increased rigidity.
* If the width or span of the duct is large, then slabtix' adaptor(s) 4 (Fig 2) can be fitted for additional strength.
Fig 2. The two side insulation slabs 1 are then cut to size or pre-cut at the factory and should be equal to the depth of the duct plus I x insulation thickness. These are then pushed onto the top dowels 2 at a slight angle and then pushed firmly against the bottom dowels 3.
Page 11, Fig 1. The top insulation slab 1 is cut to size or supplied cut to size and should be equal to the width of the duct 2 plus 2 x insulation thickness.
The sides of the top slab are lined up with the side insulation slabs and then pushed firmly onto the top dowels 3.
At this stage, all joints between insulation slabs and Insulated Duct Breathers are sealed with matching tape or mastic. Cj
Page 11, Fig 2. Rigid sheets 1 (optional) are fitted the full width and length of the duct OR strips of rigid sheet are fitted to the full width of the duct so as to straddle the edge of the capping 2. Mastic is applied to the inside edges of the capping prior to lowering this onto the rigid sheet (or strips of). Straps are then fitted to retam the capping and tensioned and locked accordingly.
Page 12, Figs 1, 2 & 3 shows a slabfix' adaptor which can be used for additional retention of the insulation slabs where large spans are involved or in * place of strapping, if desired.
Fig 1 shows a round spacer 1 whose length is equivalent to thc thickness of the insulation slab. A rigid washer 2 and flexible washer 3 are fitted to a standard self drilling Tec Screw 4. The spacer 1 which has a clearance hole is then Fitted over the screw and a hard rubber washer 5 is finally pushed over the end of the screw such that the screw protrudes from the assembly sufficiently for it to pierce and lock into the sides of the duct. The screw will cbite down' onto the spacer 1 such that when tight it will not overly compress the insulation.
S

Claims (5)

1. A system which facilitates rapid assembly and secure fixing of rigid insulation slabs to rectangular ducts.
2. A system according to claim I in which an Insulated Flange Breather is fitted around each flange which allows pressurised air from with the duct/flange to escape to atmosphere without damaging the insulation or * allowing condensation to form on the flange and adjacent duct.
3. A system according to claim 1 in which T' bars and dowels are used to locate and retain the insulation slabs on the duct. The "I" bars also provide reinforcement and support for the corners of the insulation slabs.
4. A system according to claim I which provides protection to its top surfaces from attack by birds and rodents and which can be re-inforced to accept light foot traffic.
5. A system according to claim I which can be adapted for internal ducts and vertical ducts.
S
GB0714541A 2007-07-26 2007-07-26 Insulation system for ducts Withdrawn GB2451273A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0714541A GB2451273A (en) 2007-07-26 2007-07-26 Insulation system for ducts
PCT/GB2008/002526 WO2009013493A1 (en) 2007-07-26 2008-07-23 Fixing
GB1000636.9A GB2463219B (en) 2007-07-26 2008-07-23 Fixing
US12/452,867 US20110113719A1 (en) 2007-07-26 2008-07-23 Fixing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0714541A GB2451273A (en) 2007-07-26 2007-07-26 Insulation system for ducts

Publications (2)

Publication Number Publication Date
GB0714541D0 GB0714541D0 (en) 2007-09-05
GB2451273A true GB2451273A (en) 2009-01-28

Family

ID=38512878

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0714541A Withdrawn GB2451273A (en) 2007-07-26 2007-07-26 Insulation system for ducts
GB1000636.9A Expired - Fee Related GB2463219B (en) 2007-07-26 2008-07-23 Fixing

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1000636.9A Expired - Fee Related GB2463219B (en) 2007-07-26 2008-07-23 Fixing

Country Status (3)

Country Link
US (1) US20110113719A1 (en)
GB (2) GB2451273A (en)
WO (1) WO2009013493A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2368381B1 (en) 2008-12-23 2012-08-22 Telefonaktiebolaget L M Ericsson (publ) Maintaining current cell location information in a cellular access network
US20120152505A1 (en) * 2010-12-20 2012-06-21 Advanced Distributor Products Llc Structural plate for an air handler system
GB2514533B (en) * 2013-03-08 2020-01-29 Ronald Dalgarno Michael Thermally insulated duct members
US9200729B2 (en) 2013-05-24 2015-12-01 Paul E. HOBBS Combination hanger and reinforcement bracket
US10976070B1 (en) 2017-03-31 2021-04-13 Albers Mechanical Contractors, Inc. Foam core duct system protected by metal sleeves with integral flanges
CN115199865B (en) * 2022-06-30 2023-10-27 中建二局第三建筑工程有限公司 Bridge type closed heat preservation fixing device for rectangular air duct flange and construction method

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262768A1 (en) * 1974-03-01 1975-09-26 Strulik Wilhelm Ducts for air-conditioning of buildings - are made of corrugated sheets of asbestos fibres covered with aluminium foil
DE2612600A1 (en) * 1976-03-25 1977-10-06 Luftleitungssysteme Mbh H Hase Modular sound dampers for metal ducts - comprise standard rubber edged units assembled to match duct cross-section
US4280536A (en) * 1978-08-23 1981-07-28 Erich Gnant Connecting device for insulated duct work
WO1993022593A1 (en) * 1992-04-29 1993-11-11 Antti Lehtonen Method for manufacturing a structural element and the structural element
JPH07158947A (en) * 1993-12-07 1995-06-20 Misawa Homes Co Ltd Heat insulation dust
DE29620955U1 (en) * 1996-12-03 1997-02-13 Luebke Bernd Metallwaren Gmbh Fireplace cladding
GB2305485A (en) * 1995-09-20 1997-04-09 Koolduct Limited Flange system for board edge, e.g. for ducting
JPH09202127A (en) * 1996-01-24 1997-08-05 Abuantei:Kk Air-conditioning duct
DE19628013A1 (en) * 1996-07-11 1998-01-15 Michael Nurtsch Sheet metal cladding for chimney protruding above roof top
JPH10292512A (en) * 1997-04-21 1998-11-04 Nippon Muki Co Ltd Heat-insulation execution method of duct flange part and heat-insulation material for the part
FR2780481A1 (en) * 1998-06-25 1999-12-31 Sodistra Casing for the circulation of air, fumes or solid products in buildings
DE20016576U1 (en) * 2000-09-26 2000-12-21 Conit Lufttechnik Gmbh Ventilation duct for buildings and connecting element intended for their manufacture
JP2004082127A (en) * 2002-07-01 2004-03-18 Shinjo Mfg Co Ltd Welding pin for mounting heat insulating material
EP1715158A2 (en) * 2005-04-22 2006-10-25 United Technologies Corporation Duct liner acoustic splice

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066475A (en) * 1932-07-19 1937-01-05 Robert E Kramig Protective sheathing or covering for pipes and method of applying same
US2389468A (en) * 1943-04-12 1945-11-20 Augustus P Terry Fastener for duct forms and the like
US2916054A (en) * 1953-11-03 1959-12-08 William D Callan Knockdown sectional air conduits
US3423570A (en) * 1966-03-21 1969-01-21 William J Trabilcy Electrical radiant heating system for fluid-receiving conduit structures
JPS505863B1 (en) * 1970-07-31 1975-03-07
US3690243A (en) * 1971-04-12 1972-09-12 Air Factors Suspended ceiling framework supported troffer air distribution system
US3938694A (en) * 1974-05-06 1976-02-17 Archuleta William A Evaporative cooler cover
GB1514332A (en) * 1975-01-29 1978-06-14 Forbes G Supporting of ducting
US4464821A (en) * 1982-04-15 1984-08-14 Pneutek, Inc. Method of attaching insulation to a mold
FR2541334B1 (en) * 1983-02-17 1988-05-06 Gtm Ets Sa JOINT FOR TRANSFERRING EFFORTS BETWEEN TWO CONSTRUCTION ELEMENTS, ESPECIALLY WORKS OF ART, ALLOWING RELATIVE TRANSLATION AND ROTATION OF THESE ELEMENTS
CH675465A5 (en) * 1988-08-04 1990-09-28 Wisan Technik Ag Centring fitting for connected air duct sections - comprises punched metal plate with fastening lugs and support shoulders
BE1003770A3 (en) * 1991-05-03 1992-06-09 Climatech Internat S A Fastener pointes.
JPH06137464A (en) * 1992-10-28 1994-05-17 Hitachi Plant Eng & Constr Co Ltd Three axial direction restricting duct support
US6698971B1 (en) * 1999-03-03 2004-03-02 Simpson Strong-Tie Company, Inc. Wood connector of sheet metal
JP3352065B2 (en) * 1999-12-13 2002-12-03 双葉電子工業株式会社 Fluorescent display tube and driving method thereof
DE20102258U1 (en) * 2001-02-09 2001-11-08 Stahl Gebhardt Gmbh Vibration damper as an air duct holder
US7797893B2 (en) * 2006-05-11 2010-09-21 Specified Technologies Inc. Apparatus for reinforcing and firestopping around a duct extending through a structural panel
US7685792B2 (en) * 2006-05-11 2010-03-30 Specified Technologies Inc. Apparatus for enhancing reinforcing and firestopping around a duct extending through a structural panel

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262768A1 (en) * 1974-03-01 1975-09-26 Strulik Wilhelm Ducts for air-conditioning of buildings - are made of corrugated sheets of asbestos fibres covered with aluminium foil
DE2612600A1 (en) * 1976-03-25 1977-10-06 Luftleitungssysteme Mbh H Hase Modular sound dampers for metal ducts - comprise standard rubber edged units assembled to match duct cross-section
US4280536A (en) * 1978-08-23 1981-07-28 Erich Gnant Connecting device for insulated duct work
WO1993022593A1 (en) * 1992-04-29 1993-11-11 Antti Lehtonen Method for manufacturing a structural element and the structural element
JPH07158947A (en) * 1993-12-07 1995-06-20 Misawa Homes Co Ltd Heat insulation dust
GB2305485A (en) * 1995-09-20 1997-04-09 Koolduct Limited Flange system for board edge, e.g. for ducting
JPH09202127A (en) * 1996-01-24 1997-08-05 Abuantei:Kk Air-conditioning duct
DE19628013A1 (en) * 1996-07-11 1998-01-15 Michael Nurtsch Sheet metal cladding for chimney protruding above roof top
DE29620955U1 (en) * 1996-12-03 1997-02-13 Luebke Bernd Metallwaren Gmbh Fireplace cladding
JPH10292512A (en) * 1997-04-21 1998-11-04 Nippon Muki Co Ltd Heat-insulation execution method of duct flange part and heat-insulation material for the part
FR2780481A1 (en) * 1998-06-25 1999-12-31 Sodistra Casing for the circulation of air, fumes or solid products in buildings
DE20016576U1 (en) * 2000-09-26 2000-12-21 Conit Lufttechnik Gmbh Ventilation duct for buildings and connecting element intended for their manufacture
JP2004082127A (en) * 2002-07-01 2004-03-18 Shinjo Mfg Co Ltd Welding pin for mounting heat insulating material
EP1715158A2 (en) * 2005-04-22 2006-10-25 United Technologies Corporation Duct liner acoustic splice

Also Published As

Publication number Publication date
GB2463219A (en) 2010-03-10
GB0714541D0 (en) 2007-09-05
WO2009013493A1 (en) 2009-01-29
GB2463219B (en) 2012-08-29
US20110113719A1 (en) 2011-05-19
GB201000636D0 (en) 2010-03-03

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