US3072038A - Air diffuser - Google Patents

Air diffuser Download PDF

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Publication number
US3072038A
US3072038A US36976A US3697660A US3072038A US 3072038 A US3072038 A US 3072038A US 36976 A US36976 A US 36976A US 3697660 A US3697660 A US 3697660A US 3072038 A US3072038 A US 3072038A
Authority
US
United States
Prior art keywords
air
ceiling
diffuser
side wall
flange
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.)
Expired - Lifetime
Application number
US36976A
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English (en)
Inventor
Leonard R Phillips
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.)
Anemostat Corp of America
Original Assignee
Anemostat Corp of America
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 Anemostat Corp of America filed Critical Anemostat Corp of America
Priority to US36976A priority Critical patent/US3072038A/en
Priority to ES0266182A priority patent/ES266182A1/es
Priority to DK167861AA priority patent/DK103530C/da
Priority to GB16696/61A priority patent/GB909099A/en
Application granted granted Critical
Publication of US3072038A publication Critical patent/US3072038A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures

Definitions

  • This invention relates to air diffusers for supplying air to a room or other enclosure for heating, cooling, ventilating, or other purposes. More particularly, the invention relates to air diffusers of the type which are particularly adapted to be substantially concealed in a ceiling of a room so as to discharge air through a narrow elongated slot in the ceiling.
  • a more specific object of the invention is to provide an air diffuser of the type mentioned and which is particularly adapted for ready connection with a ceiling mounted light xture.
  • FIG. 1 is a vertical transverse section through an air diffuser embodying the present invention and a light fixture.
  • FiG. 2 is a side view of the air diffuser of PIG. 1 with one side wall thereof partially broken away.
  • FIG. 3 is an enlarged fragmentary vertical transverse section of the air diffuser of FlG. 1 showing a portion of the diffuser' adjacent an air discharge slot therein.
  • an air diffuser embodying the present invention is shown in the drawing in association with a concealed or flush light fixture mounted within a ceiling and the diffuser will be so described as its advantages are thereby particularly well illustrated. 1t is to be understood, however, that air diffusers constructed in accordance with the invention have a wide variety of other uses in association with ceilings or other room walls.
  • an air diffuser embodying the invention may be mounted in a ceiling of the type referred to as a hung ceiling and the diffuser may be situated so as to discharge air from a narrow elongated slot between adjacent but spaced beams or other structural elements. in such event, the diffuser can be entirely separate from and independent of any light fixture in or on the ceiling.
  • a ceiling of a room or other enclosure is provided with an elongated opening 12 for receiving an elongated light fixture indicated generally at 1d.
  • the light fixture 14 is shown as including illuminating means comprising a pair of parallel elongated gas glow tubes 16, 16, a support means for said tubes indicated generally at 1S, and a housing.
  • the housing includes an elongated horizontal top wall 2d, similar opposing elongated vertical side walls 22 and 211 and similar short vertical end walls 26, 26, one shown.
  • the top wall 2i) of the housing is or may be secured to a beam 23 or the like as by means of screws 3f), 30, one shown.
  • the light xture may be supported within the opening 12 with the support means 18,
  • the housing side walls 22 and 24 have their lower edges substantially hush with the lower surface of the ceiling 10, or, it may be said that said lower edges lie substantially in the plane of the lower surface of the ceiling.
  • the lower edges of the end walls 26, 26 of the housing of the light fixture are similarly situated with respect to the lower surface of the ceiling 10.
  • a cover plate as indicated generally at 32 may be placed over the bottom of the light fixture housing to close the same and to provide for an attractive appearance.
  • the cover plate 32 is shown as including a transparent centrai portion 374i, for the downward passage of light from the illuminating means 16, 16, and a marginal fiange portion 36 which overlays a marginal portion of the lower surface of the ceiling 11i adjacent and around the opening 12. 'I he cover plate 32 may be secured in place by conventional means not shown.
  • an air diffuser indicated generally at 3S is shown connected along one side wall 24 of the light fixture housing.
  • the diffuser 3E has elongated opposing side walls 48 and 50 and short. connecting end walls 52, 52, one shown. Said side and end walls are adapted to be entered vertically downwardly in the ceiling slot 12 so that the lower edges thereof are substantially iush with, or lie substantially in the plane of, the lower surface of the ceiling 1t).
  • the diffuser 38 also has a top wall 54 which is connected with upper edges of said side walls 4S and Sti and said end walls 52, 52 and which cooperates therewith to define an air chamber 56.
  • the diffuser While the detailed construction of the diffuser may vary widely, it is shown as being formed of sheet metal with Ithe side wall 5d and the top wall 54 thereof formed integrally.
  • the side wall i3 and the end walls 52, 52 are shown as being formed separately and connected together and connected with the top Wall 54 and the side wall Sti by suitable means such as welding.
  • the diffuser is connectible with a supply of air and preferably the side wall 50 thereof is provided with an air inlet opening S8 as shown.
  • An annular flange or collar d@ may be provided adjacent said inlet opening 58 as shown for attachment to an air supply conduit.
  • the side wall 48 thereof is preferably substantially fiat as shown and is disposed in a vertical plane so as to lie adjacent the side wall 24 of the light fixture.
  • the opposite side wall Sil of the diffuser 3S is also generally vertical but has a longitudinal portion 68 which projects inwardly above the lower edge of said wall.
  • Said wall also has a longitudinal p0rtion 72 between said longitudinal portion 63 and said lower edge thereof and the portion 72 curves gradually downwardly and outwardly.
  • means for connecting the diffuser 33 to the light fixture 14 comprise a narrow elongated vertical flange 7d which extends longitudinally along the upper edge of the side wall 48 of the diffuser, a corresponding narrow elongated longitudinal flange 76 on the housing of the light iixture #14, and suitable connecting bolts 7S, 73, one shown.
  • the side wall d8 of the air diffuser 38 is provided along its lower edge with an air deflecting means comprising an integral narrow elongated longitudinai flange 8@ which extends throughout the length of said side wall.
  • the fiange 811 has an upper surface 82 which is generally flat and substantially parallel with the lower surface of the ceiling llfl in which the diffuser is mounted.
  • said flange Si cooperates with the lower edge of the side wall Sti and the lower edges of the end walls 52, 52 of the diffuser to define a narrow elongated air discharge slot 8d.
  • Said discharge slot S4 receives air from the air chamber 56 and discharges the same through a narrow elongated opening 85 in the aforementioned cover plate 36, the opening 85 being substantially coextensive with the discharge slot 84.
  • Such air flow is provided for by the aforementioned upper surface 82 of the air deecting flange 80; the longitudinal inwardly projecting portion 68 of the diffuser side wall 5ft, and the gradually downwardly and outwardly Curved portion 72 of said side wall.
  • Air flowing vertically downwardly in the air chamber 56 adjacent the side wall 48 of the diffuser is turned through approximately 90 to the horizontal by the deflecting flan-ge rear surface 82 for lateral and horizontal discharge from the slot 84.
  • the inwardly projecting longitudinal portion 68 of the side wall 5f extends partially across the width of the air discharge slot 84 upwardly therefrom and prevents significant air flow in a vertical downward direction from the chamber 56 through the said slot into the room or other enclosure.
  • the vertical air stream which does pass downwardly in the vertical path which is open between the inwardly projecting wall portion 68 and the inner edge of the flange 8@ is deected laterally and horizontally by the aforementioned air stream which flows downwardly along the side wall 48, horizontally across the flange Sti and off the inner edge thereof.
  • the gradually outwardly and downwardly curved portion 72 of the side wall 5d also induces the lateral and horizontal discharge of air from the slot S4 as air flowing downwardly thereover tends to adhere thereto and to turn through 90 from a vertical to a horizontal path.
  • the air diffuser 38 provides for the discharge of a wide dat air stream along and closely adjacent the lower surface of the ceiling ld and said air stream will retain its shape and will remain closely adjacent the ceiling for a substantial distance along the ceiling from the discharge slot S4.
  • the air stream will have a tendency to bunch together and to take on a generally circular cross-sectional shape. This phenomena is well known and is due at least in part to cohesive forces in the air stream. Obviously, as the air stream bunches or tends to become circular in cross section, its vertical dimension is increased and this may result in objectionable and even harmful air drafts on occupants of the room or enclosure.
  • Said surfaces 88, 8S serve to split or separate the air stream as it passes over the defiecting flange whereby to provide the aforesaid plurality of smaller air streams for discharge from the slot 34.
  • Each of said smaller air streams flowing along the ceiling 1t) may of course tend to bunch or take on a circular crosssectional shape, but it will be apparent that the resulting increase in vertical dimension of each of said streams will be substantially less than the increase in vertical dimension of a single large air stream as is provided without now dividers.
  • bafe means serving to direct air ow angularly outwardly from the ends of the air dis charge siot
  • said means comprise two similar baffie plates 37, 37 which are secured within and at opposite ends of the diffuser as by welding.
  • the baffle plates S7, d? are inclined downwardly and outwardly from the top wall 54 of the diffuser to their adjacent end walls 52, SZ so as to direct air flowing longitudinally toward the ends of the air chamber 56 in corresponding directions.
  • pivot pins 104, 104 are entered in suitable bearing apertures in bearing plates 166 and 10S secured to the side wall d8 or the diffuser 38.
  • the mounting rods 92 and 94 may be swung upwardly and downwardly or in countern clockwise and clockwise directions respectively in the air chamber 56 to move the damper 90 toward and away from the inlet opening 58.
  • An actuating lever is supported by a pivot pin 112 secured in the side wall 48 of the air diffuser for generally vertical swinging movement.
  • an arcuate slot 114 slidably receives a drive pin 116 which is formed integrally with one of the pivot pins 104 on the mounting rod 94.
  • a lower end portion 113 of the actuating lever may be moved angularly to pivot the lever about the pin 112 whereby tov urne the drive pin Ille upwardly and downwardly and toswing the mounting rods 92 and 94 as required to move the damper 9@ toward and away from the inlet opening 58.
  • the said lower end portion 118 of the lever lift is accessible through the air discharge slot Se and is movable generally in a longitudinal plane along and within said slot.
  • the said lever ⁇ is substantially concealed from view but may be conveniently manipulated to adjust the position of the damper 90 and to regulate air ow through the inlet opening 58,
  • An air diffuser for discharging air through a narrow elongated opening in a ceiling of a room or other enclosure, said diffuser comprising elongated opposing side walls and short connecting end walls one of which walls has an opening therein connectible lwith an air supply duct and each of which side walls is adapted to be entered vertically in a narrow elongated ceiling opening so that its lower edge lies substantially in the plane of the lower surface of the ceiling, a top wall connected with said side and end walls and cooperating therewith to define a downwardly open air chamber, and a substantially horizontal air deflecting flange extending along and projecting from the inner surface of one of said side walls at its lower edge and cooperating with the lower edge portion of the opposite side wall and with the lower edges of the end walls to define a narrow elongated and downwardly open air discharge slot communieating with said air chamber, a longitudinally extending portion of said opposite side wall spaced upwardly from said air deflecting flange being formed to project inwardly and toward said flange, said

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Greenhouses (AREA)
US36976A 1960-06-17 1960-06-17 Air diffuser Expired - Lifetime US3072038A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US36976A US3072038A (en) 1960-06-17 1960-06-17 Air diffuser
ES0266182A ES266182A1 (es) 1960-06-17 1961-03-30 Perfeccionamientos en difusores de aire
DK167861AA DK103530C (da) 1960-06-17 1961-04-25 Luftindblæsningsaggregat til afgivelse af luft gennem en spalte i et loft.
GB16696/61A GB909099A (en) 1960-06-17 1961-05-08 Improvements in or relating to air diffusers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36976A US3072038A (en) 1960-06-17 1960-06-17 Air diffuser

Publications (1)

Publication Number Publication Date
US3072038A true US3072038A (en) 1963-01-08

Family

ID=21891754

Family Applications (1)

Application Number Title Priority Date Filing Date
US36976A Expired - Lifetime US3072038A (en) 1960-06-17 1960-06-17 Air diffuser

Country Status (4)

Country Link
US (1) US3072038A (da)
DK (1) DK103530C (da)
ES (1) ES266182A1 (da)
GB (1) GB909099A (da)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169467A (en) * 1962-06-05 1965-02-16 Pylenat Company Slot-type air fixture for a ceiling ventilating-lighting system
US3176604A (en) * 1963-01-16 1965-04-06 Pyle National Co Combined lighting and ventilating system
US3181450A (en) * 1962-03-08 1965-05-04 Smithcraft Corp Ventilation and lighting
US3185067A (en) * 1961-09-08 1965-05-25 Allied Thermal Corp Slot diffuser
US3220332A (en) * 1962-05-14 1965-11-30 Titus Mfg Corp Air diffusers for use with light troffers
US3250205A (en) * 1963-06-05 1966-05-10 Air Factors Strip-type air diffuser
US4934256A (en) * 1989-02-14 1990-06-19 Labconco Corporation Fume hood ventilation control system
US6386970B1 (en) 2000-04-17 2002-05-14 Vernier, Ii Larry D. Air diffuser
US20090233539A1 (en) * 2008-03-14 2009-09-17 Closed Joint-Stock Company 'ventilation Systems' Anemostat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197614A (en) * 1937-06-23 1940-04-16 Hall & Kay Ltd Air directing device or nozzle for use in ventilating systems
US2848934A (en) * 1954-02-08 1958-08-26 Svenska Flaektfabriken Ab Method for introducing a gaseous medium in an enclosure
US2920357A (en) * 1956-04-26 1960-01-12 Walter M Ericson Ceiling with controlled ventilation
US2962582A (en) * 1957-03-29 1960-11-29 Pyle National Co Combined lighting and ventilating unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197614A (en) * 1937-06-23 1940-04-16 Hall & Kay Ltd Air directing device or nozzle for use in ventilating systems
US2848934A (en) * 1954-02-08 1958-08-26 Svenska Flaektfabriken Ab Method for introducing a gaseous medium in an enclosure
US2920357A (en) * 1956-04-26 1960-01-12 Walter M Ericson Ceiling with controlled ventilation
US2962582A (en) * 1957-03-29 1960-11-29 Pyle National Co Combined lighting and ventilating unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185067A (en) * 1961-09-08 1965-05-25 Allied Thermal Corp Slot diffuser
US3181450A (en) * 1962-03-08 1965-05-04 Smithcraft Corp Ventilation and lighting
US3220332A (en) * 1962-05-14 1965-11-30 Titus Mfg Corp Air diffusers for use with light troffers
US3169467A (en) * 1962-06-05 1965-02-16 Pylenat Company Slot-type air fixture for a ceiling ventilating-lighting system
US3176604A (en) * 1963-01-16 1965-04-06 Pyle National Co Combined lighting and ventilating system
US3250205A (en) * 1963-06-05 1966-05-10 Air Factors Strip-type air diffuser
US4934256A (en) * 1989-02-14 1990-06-19 Labconco Corporation Fume hood ventilation control system
US6386970B1 (en) 2000-04-17 2002-05-14 Vernier, Ii Larry D. Air diffuser
US6648752B2 (en) 2000-04-17 2003-11-18 Metal Industries, Inc. Air diffuser
US20090233539A1 (en) * 2008-03-14 2009-09-17 Closed Joint-Stock Company 'ventilation Systems' Anemostat

Also Published As

Publication number Publication date
DK103530C (da) 1966-01-17
ES266182A1 (es) 1961-08-16
GB909099A (en) 1962-10-24

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