GB2400639A - Ventilation duct - Google Patents
Ventilation duct Download PDFInfo
- Publication number
- GB2400639A GB2400639A GB0308825A GB0308825A GB2400639A GB 2400639 A GB2400639 A GB 2400639A GB 0308825 A GB0308825 A GB 0308825A GB 0308825 A GB0308825 A GB 0308825A GB 2400639 A GB2400639 A GB 2400639A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- ventilation duct
- seamless ventilation
- seamless
- hinge means
- 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
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
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- F16L9/00—Rigid pipes
- F16L9/003—Rigid pipes with a rectangular cross-section
-
- 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
- F16L9/00—Rigid pipes
- F16L9/22—Pipes composed of a plurality of segments
-
- 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
-
- 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
- F24F13/0272—Modules for easy installation or transport
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0027—Cutting off
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
Abstract
A seamless ventilation duct 1 including integrally formed hinge means 6 to enable the duct to be collapsed for transportation and/or storage. The duct 1 may comprise a plurality of rigid or semi-rigid panels, each being joined to an adjacent panel by the integrally formed hinge means to enable relative movement between the panels. The duct may be made from plastics material such as either a thermoplastic or thermoplastic elastomer, or from polypropylene or PVC. The duct may be formed by extrusion. A method of manufacturing the seamless ventilation duct by an extruding moulding method is also disclosed.
Description
Ventilation Duct
Description
The present invention relates to a ventilation duct or tube primarily used in s buildings to convey hot or cold air for heating and cooling purposes respectively, and in other circumstances where a circulation of air or fluids is required.
Conventional ducting of tubing is usually assembled prior to delivery to the installation site so that it can be installed quickly without any further assembly.
However, this means that the ducting is cumbersome and bulky and so is difficult to transport easily. This results in an increase in costs.
Ventilation ducts are known which are delivered to the installation site as individual panels which are then assembled prior to installation. However, assembly is time consuming and often requires welding equipment or the ducting includes other components to enable the panels to be connected together. Again, the need for additional components increases manufacturing costs.
It is an object of the present invention to overcome or substantially alleviate the disadvantages with conventional ducting and provide a ventilation duct that has the desirable aspects of being easily manufactured, stored, transported and erected for installation.
According to the invention, there is provided a seamless ventilation duct including integrally formed hinge means to enable the duct to be collapsed for transportation and/or storage.
In a preferred embodiment, the duct comprises a plurality of elongate panels, each panel being joined to an adjacent panel by the integrally formed hinge means to enable relative movement between said panels. - 2 -
Preferably, the hinge means comprises an elongate channel In the duct between each panel so that the duct folds in the region of the channel to enable relative movement between the panels.
s Each panel is preferably disposed substantially at right angles to two adjacent panels when the duct is erected.
In a preferred embodiment, each panel is rigid or semi-rigid and forms one side-wall of the duct.
When the duct is collapsed, each side-wall conveniently lies substantially in contact with another side-wall.
The side-walls preferably define a parallelogram in cross-section. However, it is envisaged that their may be more than four side-walls in which case the side-walls together define a multi-sided profile in crosssection.
The duct is advantageously made from plastics material such as polypropylene or PVC. However, it may also be made from any thermoplastic or thermoplastic elastomer with appropriate physical properties to produce an effective hinge mechanism. The duct is preferably extruded. However, it is envisaged that other methods of manufacture such as injection moulding or blow moulding could be employed.
2s The present invention also provides a method of manufacturing a seamless extruded ventilation duct including integrally formed hinge means comprising the steps of extruding or moulding the duct, allowing the duct to cool and folding the duct about the hinge means to collapse it for transportation or storage.
The duct may be extruded or moulded in an erect or partially erect condition.
However, it may alternatively be extruded in a flat condition and subsequently erected for installation. - 3
An embodiment of the invention will now be described, by way of example only, and with reference to the accompanying drawings, in which: FIGURE I illustrates an end view or cross-sectional view of a ventilation duct shown In a fully erect state, according to the invention; FIGURE 2 illustrates an enlarged partial view of part of the ventilation duct shown in Figure 1; FIGURE 3 illustrates an end view or cross-sectional view of the ventilation duct shown in Figure 1, but in a fully collapsed state, and FIGURE 4 illustrates an enlarged partial view of part of the ventilation duct shown in Figure 3.
Referring now to the drawings, there is shown in Figure I an end view or cross- sectional view of a rectangular ventilation duct or tube 1 according to the invention comprising parallel htst and second major walls 2,3 spaced from each other by first and second minor walls 4,5, the walls 2,3,4,5 together forming an hollow elongate duct space 7. The duct I is seamless and is integrally formed by extrusion in one tubular piece. The longitudinal edge of each wall is connected to an adjacent wall by hinge means 6 formed from elongate channels cut into the duct 1. As can be seen more clearly from Figure 2, each channel 6 comprises a region in the duct I having a reduced wall thickness which makes the duct more flexible in that region. The flat planar surfaces of the walls 2,3,4,5 themselves have a greater thickness and so are rigid or semi-rigid so do not flex so readily. Although the illustrated embodiment shows a duct I having a generally rectangular cross-section, it may also be square in crosssection in which case each wall 2,3,4,5 has the same width.
The duct I formed by the walls 2,3,4,5 and the hinge means 6 is extruded as a tube in one-piece and, preferably, in the form in which it is shown in Figure 1 namely, in its fully erect state and in which the major walls 2,3 and minor walls 4,5 are at right angles to each other. However, it could also be extruded in a partially collapsed state.
Referring to Figure 3, the duct 1 is illustrated in a completely collapsed or folded- flat condition in which the major wall 2 and minor wall 4 overlap major wall 3 and - 4 - minor wall 5. Collapse of the duct I is achieved by applying a shear force to the duct in the direction of arrow "X" or "Y" in Figure I sufficient to cause the duct to fold or crease about the hinges 6. The duct I shown in Figure 3 has been collapsed by applying a force in the direction of arrow "Y". s
Figure 4 illustrates an enlarged view of the region of the hinge 6 between major wall 2 and minor wall 4 and between minor wall 4 and major wall 3. As can be seen, the angle between these two walls 3,4 has been reduced substantially to zero so that the faces of these walls 3,4 now lie in contact. The channel forming the hinge 6 now assumes a generally hemispherical opening when the duct I is in the folded state.
As can be seen most clearly in Figure 2, the channel has a bottom wall 8 and two side walls 9. The bottom wall 8 may define an arcuate surface and the side walls may extend from the bottom wall 8 at an angle of 90 degrees or some other angle. A smooth radius may connect the bottom wall 8 to each side wall 9 and each side wall 9 to the face of the wall in which the channel is formed.
It will be appreciated that when the duct 1 has been extruded, it can be folded from its erect state shown in Figure I into its folded state shown in Figure 3 due to the flexibility of the duct I in the region of the channels to substantially reduce its size and substantially simplify storage and transportation.
It will be appreciated that the duct I will usually only need to be folded flat once i.e. immediately following manufacture and erected once for installation. Once 2s installation is complete, there is generally no requirement to ever fold the duct again. Therefore, the material of the duct 1 and in particular the thin-walled section of the duct 1 in the region of the channel only needs to be capable of being flexed two, or possibly a few times, without breaking in order for the duct 1 to be collapsed and erected for installation. Preferably, the material will maintain a degree of stiffness despite being flexed so that the duct 1 can be released in its erect state without collapsing under its own weight. s -
In a preferred embodiment, the duct 1 is made from plastics material which can be extruded easily. Preferred materials are polypropylene or PVC or any other thermoplastic or thermoplastic elastomer with appropriate physical properties to produce an effective hinge mechanism.
It can be seen that the present invention provides a ventilation duct that can be manufactured, collapsed and erected easily. As the duct is entirely formed from one component or piece, there are no additional components and no tools required to assemble it. Therefore, the duct is cheaper to make and easier to assemble.
Furthermore, as the duct is seamless, it is not necessary to join two ends or walls together when the duct is erected. This is an important aspect of the duct of the invention as no joining technique such as welding or riveting needs to be employed either after manufacture or at installation site.
This description relates to a preferred embodiment only and all modifications falling within the scope of the appended claims are also considered to form part of the Inventton. - 6
Claims (16)
- Claims 1. A seamless ventilation duct including integrally formed hingemeans to enable the duct to be collapsed for transportation and/or storage. s
- 2. A seamless ventilation duct according to claim 1, comprising a plurality of elongate panels, each panel being joined to an adjacent panel by the integrally formed hinge means to enable relative movement between said panels.
- 3. A seamless ventilation duct according to claim 2, wherein said hinge means comprises an elongate channel in the duct between each panel so that the duct folds in the region of the channel to enable relative movement between the panels.
- 4. A seamless ventilation duct according to claim 2 or 3, wherein each panel is disposed substantially at right angles to two adjacent panels when the duct is erected.
- 5. A seamless ventilation duct according to claim 4, wherein each panel is rigid or semi-rigid and forms one side-wall of the duct.
- 6. A seamless ventilation duct according to claim 5, wherein each side wall lies substantially in contact with another side-wall when the duct is collapsed.
- 7. A seamless ventilation duct according to claim 5 or 6, wherein the side walls define a parallelogram or other multi-sided profile in crosssection.
- 8. A seamless ventilation duct according to any preceding claim, wherein the duct is made from plastics material.
- 9. A seamless ventilation duct according to claim 8, wherein the duct is made from thermoplastic or thermoplastic elastomer. - 7
- 10. A seamless ventilation duct according to claim 8, wherein the duct is made from polypropylene or PVC.
- 11. A seamless ventilation duct according to any preceding claim formed by s extrusion.
- 12. A seamless ventilation duct substantially as hereinbefore described with reference to the accompanying drawings.
- 13. A method of manufacturing a seamless ventilation duct including integrally formed hinge means comprising the steps of extruding or moulding the duct, allowing the duct to cool and folding the duct about the hinge means to collapse it for transportation or storage or erect it for installation.
- 14. A method according to claim 13, wherein the duct is extruded in a collapsed condition.
- 15. A method according to claim 13, wherein the duct is extruded in a partially erect or erect condition.
- 16. A method of manufacturing a seamless ventilation duct substantially as hereinbefore described.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0308825A GB2400639B (en) | 2003-04-16 | 2003-04-16 | Ventilation duct |
CA002522160A CA2522160A1 (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
CNA2004800099685A CN1774603A (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
KR1020057019423A KR20060008883A (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
US10/553,218 US20060213498A1 (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
PCT/GB2004/001592 WO2004094922A1 (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
JP2006506119A JP2006523818A (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
EP04726544A EP1613900A1 (en) | 2003-04-16 | 2004-04-08 | Ventilation duct |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0308825A GB2400639B (en) | 2003-04-16 | 2003-04-16 | Ventilation duct |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0308825D0 GB0308825D0 (en) | 2003-05-21 |
GB2400639A true GB2400639A (en) | 2004-10-20 |
GB2400639B GB2400639B (en) | 2006-04-19 |
Family
ID=9956910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0308825A Expired - Fee Related GB2400639B (en) | 2003-04-16 | 2003-04-16 | Ventilation duct |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060213498A1 (en) |
EP (1) | EP1613900A1 (en) |
JP (1) | JP2006523818A (en) |
KR (1) | KR20060008883A (en) |
CN (1) | CN1774603A (en) |
CA (1) | CA2522160A1 (en) |
GB (1) | GB2400639B (en) |
WO (1) | WO2004094922A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011096911A1 (en) * | 2010-02-05 | 2011-08-11 | Klapishevskyy Oleksandr Stanislavovych | Foldable ventilation channel |
EP2535657A1 (en) * | 2011-06-14 | 2012-12-19 | Centrotherm Systemtechnik GmbH | Modular fluid conveyance component |
CN103375648A (en) * | 2012-04-30 | 2013-10-30 | 通用汽车环球科技运作有限责任公司 | Air ducts for vehicles |
FR2994472A1 (en) * | 2012-08-10 | 2014-02-14 | Raymond Guionie | Ventilation duct for draining of wet wall in old house, has set of straight elements that are able to be sealed end to end to form duct of desired length, and set of folds arranged in section of duct for supporting air flow |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7542287B2 (en) | 2005-09-19 | 2009-06-02 | Chatsworth Products, Inc. | Air diverter for directing air upwardly in an equipment enclosure |
US7804685B2 (en) * | 2005-09-19 | 2010-09-28 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US11259446B2 (en) | 2005-09-19 | 2022-02-22 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11212928B2 (en) | 2005-09-19 | 2021-12-28 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US8107238B2 (en) | 2005-09-19 | 2012-01-31 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US20080200111A1 (en) * | 2007-02-06 | 2008-08-21 | Gibson Herbert G | Sealed ventilation duct |
US11102910B2 (en) * | 2017-08-01 | 2021-08-24 | Dell Products L.P. | Flexible service air baffle |
CN108180392B (en) * | 2017-12-29 | 2021-08-17 | 东北大学 | Multifunctional portable arch structure |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818948A (en) * | 1972-07-18 | 1974-06-25 | Johns Manville | Flexible and foldable conduit |
GB2156473A (en) * | 1984-03-16 | 1985-10-09 | Amco Plastics Ltd | Collapsible ducting |
JPH0550525A (en) * | 1991-08-27 | 1993-03-02 | Tigers Polymer Corp | Continuous manufacture of hose with protrusion |
US6311735B1 (en) * | 1998-03-26 | 2001-11-06 | Terrell J. Small, Sr. | Collapsible plenum |
Family Cites Families (17)
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US2032103A (en) * | 1933-09-25 | 1936-02-25 | Thomas H Tise | Air conditioning conduit |
US2378272A (en) * | 1942-06-13 | 1945-06-12 | Phillip Carey Mfg Company | Air conduit |
US2352876A (en) * | 1942-07-25 | 1944-07-04 | Norristown Magnesia & Asbestos | Collapsible conduit |
US3077661A (en) * | 1958-03-28 | 1963-02-19 | Howard A Fromson | Method of making composite seamless tubing |
US3201861A (en) * | 1960-03-31 | 1965-08-24 | Fromson H A | Method of making a double-walled tube |
US3343567A (en) * | 1964-06-01 | 1967-09-26 | Richardson Merrell Inc | Collapsible tubing |
GB1241413A (en) * | 1967-07-18 | 1971-08-04 | Atomic Power Constr Ltd | Improvements in and relating to ducting |
US3721269A (en) * | 1970-11-23 | 1973-03-20 | Petro Tex Chem Corp | Oriented polybutene-1 tubing |
US3786171A (en) * | 1973-01-22 | 1974-01-15 | Kvoda Plastics Ltd | Integral hinged wiring raceway |
US4191230A (en) * | 1978-02-16 | 1980-03-04 | Minigrip, Inc. | Integral extruded construction for bags |
JPS5938542A (en) * | 1982-08-26 | 1984-03-02 | Babcock Hitachi Kk | Collapsible duct |
US5246752A (en) * | 1986-08-18 | 1993-09-21 | Technicon Instruments Corporation | Method and apparatus for drawing thermoplastic tubing |
US5137057A (en) * | 1989-05-26 | 1992-08-11 | Hummert Iii August H | Flexible duct and method of suspending a duct |
US5100109A (en) * | 1989-08-03 | 1992-03-31 | Robbins Edward S Iii | Fence board construction and related process |
US5085251A (en) * | 1990-06-27 | 1992-02-04 | Electric Power Research Institute | Rectangular flexible duct |
JPH08159378A (en) * | 1994-12-12 | 1996-06-21 | Sekisui Chem Co Ltd | Air duct |
GR1002959B (en) * | 1997-01-10 | 1998-09-01 | Plastic heating air-duct |
-
2003
- 2003-04-16 GB GB0308825A patent/GB2400639B/en not_active Expired - Fee Related
-
2004
- 2004-04-08 KR KR1020057019423A patent/KR20060008883A/en not_active Application Discontinuation
- 2004-04-08 CN CNA2004800099685A patent/CN1774603A/en active Pending
- 2004-04-08 JP JP2006506119A patent/JP2006523818A/en active Pending
- 2004-04-08 EP EP04726544A patent/EP1613900A1/en not_active Withdrawn
- 2004-04-08 CA CA002522160A patent/CA2522160A1/en not_active Abandoned
- 2004-04-08 US US10/553,218 patent/US20060213498A1/en not_active Abandoned
- 2004-04-08 WO PCT/GB2004/001592 patent/WO2004094922A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818948A (en) * | 1972-07-18 | 1974-06-25 | Johns Manville | Flexible and foldable conduit |
GB2156473A (en) * | 1984-03-16 | 1985-10-09 | Amco Plastics Ltd | Collapsible ducting |
JPH0550525A (en) * | 1991-08-27 | 1993-03-02 | Tigers Polymer Corp | Continuous manufacture of hose with protrusion |
US6311735B1 (en) * | 1998-03-26 | 2001-11-06 | Terrell J. Small, Sr. | Collapsible plenum |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011096911A1 (en) * | 2010-02-05 | 2011-08-11 | Klapishevskyy Oleksandr Stanislavovych | Foldable ventilation channel |
RU2525540C2 (en) * | 2010-02-05 | 2014-08-20 | Олександр Станиславовыч КЛАПИШЕВСКЫЙ | Folding ventilation duct |
EP2535657A1 (en) * | 2011-06-14 | 2012-12-19 | Centrotherm Systemtechnik GmbH | Modular fluid conveyance component |
EP2535658A1 (en) * | 2011-06-14 | 2012-12-19 | Centrotherm Systemtechnik GmbH | Coupling element and fluid conveying system |
CN103375648A (en) * | 2012-04-30 | 2013-10-30 | 通用汽车环球科技运作有限责任公司 | Air ducts for vehicles |
CN103375648B (en) * | 2012-04-30 | 2015-10-21 | 通用汽车环球科技运作有限责任公司 | Vehicle air conduit |
FR2994472A1 (en) * | 2012-08-10 | 2014-02-14 | Raymond Guionie | Ventilation duct for draining of wet wall in old house, has set of straight elements that are able to be sealed end to end to form duct of desired length, and set of folds arranged in section of duct for supporting air flow |
Also Published As
Publication number | Publication date |
---|---|
EP1613900A1 (en) | 2006-01-11 |
CN1774603A (en) | 2006-05-17 |
WO2004094922A1 (en) | 2004-11-04 |
KR20060008883A (en) | 2006-01-27 |
GB0308825D0 (en) | 2003-05-21 |
GB2400639B (en) | 2006-04-19 |
US20060213498A1 (en) | 2006-09-28 |
CA2522160A1 (en) | 2004-11-04 |
JP2006523818A (en) | 2006-10-19 |
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Legal Events
Date | Code | Title | Description |
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PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20110416 |