Key information

Title
Hybrid plenum
Application number
20240388
Case type
National
Status
25.08.2025 Patent meddelt (B1)
Filed
24.04.2024
Effective date
24.04.2024
Publicly available
25.08.2025
Next annual fee due
30.04.2027
Applicant
TROX AURANOR AS (NO)
Owner
TROX AURANOR AS (NO)
Inventor
Sturla Øverby Ingebrigtsen (NO) et al.
Agent
ACAPO ONSAGERS AS (NO)
Granted
25.08.2025
Patent number
349014
Expiry date
24.04.2044

Abstract and drawing

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content.
Ventilation assembly comprising plenum box (31) and diffuser (32), further comprising a connection element (33, 33’) arranged to be mounted between the plenum box (31) and the diffuser (32). The connection element (33, 33’), which is releasably attachable to the plenum box (31), is selected from the group consisting of i) a connection element (33) comprising an annular part (33a) and a tube shaped part (33b) extending perpendicularly from the annular part (33a), and ii) a connection element (33’) of just annular configuration. A method for converting the ventilation assembly from open-mount configuration to a false-ceiling configuration is also comprised.

Publications

B1A1
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Documents

 Expand Download files (26)
Date
 Date Doc. No. Process Case number In/Out Journal description To/from
 28.08.2025 11-01 Saksbehandling 20240388(349014) UT PT Registreringsbrev nasjonal patent (15) (PT20240388)
23.05.2025 10-01 Saksbehandling 20240388 UT PT Meddelelse om patent ACAPO ONSAGERS AS
 10.03.2025 09-02 Saksbehandling 20240388 INN Korrespondanse (Hovedbrev inn) ACAPO ONSAGERS AS
 10.03.2025 09-01 Saksbehandling 20240388 INN PDF_669936544 ACAPO ONSAGERS AS
 07.03.2025 02-01 Endring av fullmektig 2025/02957 UT GH Forespørsel ACAPO ONSAGERS AS
 05.03.2025 08-07 Saksbehandling 20240388 INN P31513NO00 Norske krav ACAPO ONSAGERS AS
 05.03.2025 08-06 Saksbehandling 20240388 INN P31513NO00 Description 2503 clean ACAPO ONSAGERS AS
 05.03.2025 08-05 Saksbehandling 20240388 INN P31513NO00 Description 2503 annot ACAPO ONSAGERS AS
 05.03.2025 08-04 Saksbehandling 20240388 INN P31513NO00 Claims 2503 clean ACAPO ONSAGERS AS
 05.03.2025 08-03 Saksbehandling 20240388 INN P31513NO00 Claims 2503 annot ACAPO ONSAGERS AS
 05.03.2025 08-02 Saksbehandling 20240388 INN P31513NO00 Besvarelse ACAPO ONSAGERS AS
 05.03.2025 08-01 Saksbehandling 20240388 INN Korrespondanse (Hovedbrev inn) ACAPO ONSAGERS AS
 05.03.2025 01-02 Endring av fullmektig 2025/02957 INN P31513NO00 Power of Attorney ACAPO ONSAGERS AS
 05.03.2025 01-01 Endring av fullmektig 2025/02957 INN Generell henvendelse ACAPO ONSAGERS AS
 08.11.2024 07-02 Saksbehandling 20240388 UT PT report 03:10:39
08.11.2024 07-01 Saksbehandling 20240388 UT Realitet patent CURO AS
 29.04.2024 06-03 Saksbehandling 20240388 INN 20240388_overdragelseserklæring_signert CURO AS
 29.04.2024 06-02 Saksbehandling 20240388 INN 20240388_fullmakt_signert CURO AS
 29.04.2024 06-01 Saksbehandling 20240388 INN Korrespondanse (Hovedbrev inn) CURO AS
 26.04.2024 05-01 Saksbehandling 20240388 UT Infobrev til oppfinner CURO AS
 25.04.2024 04-01 Saksbehandling 20240388 INN Korrespondanse (Hovedbrev inn) CURO AS
 25.04.2024 03-01 Saksbehandling 20240388 UT Formalia 1 CURO AS
 25.04.2024 02-01 Saksbehandling 20240388 UT Informasjon til oppfinner Pål Prestesæter Henaug
 24.04.2024 01-03 Saksbehandling 20240388 INN U4507 Trox A Text AF CURO AS
 24.04.2024 01-02 Saksbehandling 20240388 INN U4507 FIgures AF CURO AS
 24.04.2024 01-01 Saksbehandling 20240388 INN Søknadsskjema Patent CURO AS

Description, claims and drawings

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content. Description
3490141Hybrid plenumThe present invention relates to a ventilation assembly comprising a plenum and a diffuser as indicated by the preamble of claim 1. According to a second aspect, the present invention relates to a method for disassembly and reassembly of a ventilation assembly as indicated by the preamble of 5 claim 6.BackgroundIn ventilation systems, diffusers play a crucial role in supplying air to rooms. Plenum boxes are commonly used with diffusers to adjust air volume with integrated damper, measure the distributed airflow by measuring device, reduce noise, ensure even air distribution, and facilitate 10 easy mounting. Plenum boxes for false ceilings are typically rectangular, making, stacking and transport easier. The connection between plenum box and diffuser can be rectangular or circular, and with different sizes of connection. When circular connections are used, the connection size for standard spiro ducts are commonly used, but different outlet dimensions are being used to meet requirement of air volume, noise and pressure loss.15 Typically, the known plenum boxes and diffusers made for installation in “false” ceilings are different from the ones intended for open-mount under a regular ceiling. The plenum box is circular to have more unified design together with circular ducts, and mounting brackets are often hidden. Hence, reuse of an installation made under a real ceiling is not possible if a false, lowered ceiling is to be installed at a later time. Furthermore, already the need to produce and store 20 different modules for different installations is a challenge and creates a need for rather voluminous spaces for storage.FR 3095854 A describes a system comprising a diffusor and a plenum as well as two exchangeable connectors of different diameter for adaptation to differently sized ventilation system.Objectives25 The objective is to provide a higher degree of versatility in ventilation systems comprising plenum boxes and diffusers.The present inventionThe objective is fulfilled by the assembly according to claim 1 which constitutes a first aspect of the present invention. The objective is also fulfilled by the method according to claim 6 which 30 constitutes a second aspect of the present invention. 3490142Preferred embodiments of the invention are disclosed by the dependent claims.The hybrid plenum system according to the present invention provides a design solution by which a diffuser and plenum suitable for open-mount installation may easily be converted to a diffuser and plenum box for false ceiling installations, and vice versa. Use of a circular connection between 5 the plenum and diffuser allows adjustment with standard (Spiro) ducts, ensuring flexibility during installation.Additionally, the hybrid plenum system according to the present invention provides the option to allow various outlet dimensions of the plenum, thereby allowing connection to diffusers with smaller or larger connection stubs, in order to match the required air volume for the unit.10 As building owners want to adapt easily to new tenants, without much waste and cost, the new hybrid ventilation assembly exhibits increased flexibility, reduce waste and inherent reduced carbon footprint. The design facilitates easy reuse of the unit during building modifications or demolitions. It also allows for quick adaptation to changes in project requirements.Finally, a cylindrical plenum can be produced directly from steel coil, reducing the waste per 15 centage compared to rectangular plenum box produced from steel plates.Below, the present invention is described in further detail in the form of non-limiting exemplifying embodiments, with reference to the enclosed drawings, in whichFigure 1 is a perspectival drawing of a prior art ventilation assembly intended for use in connection with a false ceiling.20 Figure 2 is a perspectival drawing of a prior art ventilation assembly intended for use under a ceiling.Figure 3 is a side view of a ventilation assembly according to an embodiment of the present invention, intended for use in connection with a false ceiling.Figure 4 is a side view of a ventilation assembly according to an open-mount embodiment of the present invention.25 Figures 5a – 5e shows the steps of converting the ventilation assembly according to the present invention from an open-mount embodiment to one suitable for use in connection with a false ceiling.Figure 1 shows a conventional ventilation assembly comprising a plenum box 11 and a diffuser 12 arranged in connection with false ceiling 13. From the room below, only the diffuser is visible and 3490143the design of the plenum box is made without any consideration of aesthetical aspects. The square shaped plenum box is typically made from steel plates.Figure 2, on the other hand, shows a typical open-mount ventilation assembly. The functional aspects are more or less the same as with the assembly for false ceiling. However, the overall design 5 is typically more rounded and elegant due to the fact that all components are visible from the room below.Figure 3 shows an embodiment of a ventilation assembly according to the present invention. It is comprised by a plenum box 31 not too different from the one shown in Figure 2 and a diffuser 32 rather also in appearance rather similar to the one of Figure 2. The main difference is the presence 10 of a connecting element 33 comprising an annular part 33a with a diameter adapted to the diameter of the plenum box 31 and a tube shaped part 33b with a diameter corresponding to the centre opening of the annular part 33a. The two mentioned annular 33a and tube shaped 33b parts are typically made as an integral, undividable structure, but may also be made as separate parts, e.g. with external threads on the tube shaped part 33b fitting into internal threads on the annular part 15 33a. The size of part 33b shall correspond with the connection size of the diffuser 32.The tube shaped part 33b may be made with a standard diameter in order to allow it to be extended if required using standard pipes or tubes used in ventilation systems. The tube shaped part may also be telescopically extendable to be directly useful for different thicknesses of false ceilings.Figure 4 shows a ventilation assembly according to the present invention when configured for open-20 mount installation. The plenum box 31 and the diffuser 32 are the same as in Figure 3, while the connection element 33 is replaced by a connection element 33’ of a simple annular configuration. Figures 5a to 5e shows the conversion of the ventilation assembly of the present invention from an open-mount configuration to a configuration suitable for use in connection with a false ceiling. Figure 5a shows the elements of Figure 4 when attached to one another as useful under a regular 25 ceiling.Figure 5b shows the plenum box and the connection element 33’, the diffuser having been removed. Figure 5c shows the plenum box 31 after also the connection element 33’ having been removed. Figure 5d shows the plenum box 31 when the connection element 33 has been attached thereto. The plenum box 31 with the attached connection element 33 is to be arranged above an opening in 30 a false ceiling 13 as shown in Figure 5e, which also shows that the diffuser 32 has been attached to the connection element 33. Furthermore, in the shown embodiment, a pipe element 51 of a 349014 4diameter suitable for extending the tube shaped part 33b, is arranged between the diffuser 32 and the connection element 33. Thus, in the shown embodiment, the diffuser 32 is indirectly connected to the connection element 33. The length of the pipe element 51 would typically be decided and cut at the mounting site from a standard pipe such as a Spiro duct.5 An alternative to the use of a pipe element 51 would be to use a connection element (not shown) with a tube shaped part that is telescopically extendable.A person skilled in the art would readily understand that the inverse conversion of the one described with reference to Figures 5a – 5e, i.e. a conversion from an installation in connection with a false ceiling to an open-mount installation, is possible by reversing the steps indicated above.10
Claims
3490145Claims1. Ventilation assembly comprising plenum box (31) and diffuser (32), characterized in further comprising a connection element (33, 33’) which is releasably attachable to the plenum box (31), said connection element (33, 33’) being selected from the group consisting of5 i. a connection element (33) comprising an annular part (33a) and a tube-shaped part (33b) extending perpendicularly from the annular part (33a), andii. a connection element (33’) of just annular configuration,said connection element (33, 33’) further being arranged to be attached, directly or indirectly, to the diffuser (32).10 2. Ventilation assembly as claimed in claim 1, wherein the tube-shaped part (33b) of the connection element (33) has a circular cross-section.3. Ventilation assembly as claimed in claim 1 or 2, wherein the plenum box (31) has an overall cylindrical shape.4. Ventilation assembly as claimed in any one of the preceding claims, wherein the tube-shaped 15 part (33b) is telescopically extendable.5. Ventilation assembly as claimed in any one of the preceding claims, wherein the outer, horizontal cross-section of the diffuser (32) is similar in shape and size to that of the horizontal cross-section of the plenum box (31).6. Method for converting a ventilation assembly comprising a plenum box (31) and a diffuser (32), 20 intended for open-mount installation to a ventilation assembly suitable for use in connection with a false ceiling, characterized in comprising in sequence:a) disconnecting the diffuser (32) from the plenum box (31),b) attaching a connection element (33) to the plenum box (31), said connection element (33) comprising an annular part (33a) and a tube-shaped part (33b),25 c) placing the plenum box (31) with the attached connection element (33) over an adapted opening in a false ceiling,d) connecting the diffuser (32), directly or indirectly to the connection element (33) from below the false ceiling (13) via the mentioned opening.7. Method as claimed in claim 6, further including, between steps a) and b), disconnecting a 30 connection element (33’) of annular configuration from the plenum box (31).34901468. Method as claimed in claim 6 or 7, with the exception that the steps are conducted in the reverse order to convert the ventilation assembly for a false ceiling to an open-mount ventilation assembly.9. Method as claimed in any one of claims 6-8, comprising selecting a connection element (33) with a specifically sized tube part (33b) from a range of connection elements (33) having different sizes 5 of their tube-shaped part (33b).3490147Patentkrav1. Ventilasjonsanordning omfattende et plenumskammer (31) og en diffusor (32), karakterisert ved at den videre omfatter et tilkoblingselement (33, 33') som kan festes løsbart til plenumskammeret (31), hvor tilkoblingselementet (33, 33') er valgt fra gruppen bestående av i. et tilkoblingselement (33) som omfatter en ringformet del (33a) og en rørformet del (33b) som strekker seg vinkelrett ut fra den ringformede delen (33a), ogii. et tilkoblingselement (33') med utelukkende ringformet konfigurasjon,idet forbindelseselementet (33, 33') er videre innrettet til å bli festet, direkte eller indirekte, til diffusoren (32).2. Ventilasjonsanordning ifølge krav 1, hvor den rørformede delen (33b) av tilkoblingselementet (33) har et sirkulært tverrsnitt.3. Ventilasjonsanordning ifølge krav 1 eller 2, hvor plenumskammeret (31) har en overordnet sylindrisk form.4. Ventilasjonsanordning ifølge et hvilket som helst av de foregående krav, hvor den rørformede delen (33b) er teleskopisk uttrekkbar.5. Ventilasjonsanordning ifølge et hvilket som helst av de foregående krav, hvor det ytre, horisontale tverrsnittet av diffusoren (32) har samme form og størrelse som det horisontale tverrsnittet av plenumskammeret (31).6. Fremgangsmåte for å konvertere en ventilasjonsanordning omfattende et plenumskammer (31) og en diffusor (32) beregnet for åpen montering til en ventilasjonsanordning som er egnet for bruk i forbindelse med et undertak, karakterisert ved at den i rekkefølge omfattera) frakobling av diffusoren (32) fra plenumskammeret (31),b) festing av et tilkoblingselement (33) til plenumskammeret (31), idet tilkoblingselementet (33) omfatter en ringformet del (33a) og en rørformet del (33b)c) plassering av plenumskammeret (31) med det festede tilkoblingselementet (33) over en tilpasset åpning i et undertakd) kobling av diffusoren (32) direkte eller indirekte til tilkoblingselementet (33) fra undersiden av undertaket (13) via den nevnte åpningen.7. Fremgangsmåte ifølge krav 6, videre omfattende mellom trinn a) og b), frakobling av et forbindelseselement (33') med ringformet konfigurasjon fra plenumskammeret (31).34901488. Fremgangsmåte ifølge krav 6 eller 7, med unntak av at trinnene utføres i omvendt rekkefølge for å konvertere ventilasjonsanordningen for montering under et undertak til en ventilasjonsanordning for åpen montering.9. Fremgangsmåte ifølge et hvilket som helst av kravene 6-8, omfattende å velge et tilkoblingselement (33) med en spesifikt dimensjonert rørformet del (33b) fra et utvalg av tilkoblingselementer (33) med forskjellige størrelser på deres rørformede del (33b).
Drawings

Priority

No priority

Patent classes

IPC classesF24F 13/06F24F 13/02CPC classesF24F 13/06F24F 13/0209F24F 13/0227F24F 13/0245F24F 13/0254F24F 13/02F24F 13/0272

Citations

FR 3095854 A1 (A1)

Applicants, owners and inventors

Owners
TROX AURANOR AS
Auranorvegen 6 2770 JAREN NO (GRAN Municipality, Innlandet county)Org. number: 976699963Inventors
Sturla Øverby Ingebrigtsen
Gamle Dalsveg 123 2032 MAURA NO (NANNESTAD Municipality, Akershus county)
Pål Prestesæter Henaug
Nordre Ålsvegen 105 2750 GRAN NO (GRAN Municipality, Innlandet county)

Agent

ACAPO ONSAGERS AS
ACAPO ONSAGERS AS

Org. number: 932214636

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Open in The Brønnøysund Register Centre
Edvard Griegs vei 1 5059 BERGEN NO (BERGEN Municipality, Vestland county)
Org. number: 932214636
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