ADJUSTABLE AND CLOSEABLE AIR DIFFUSER

• US 3,765,316 A
• Filed: 04/05/1971
• Issued: 10/16/1973
• Est. Priority Date: 04/05/1971
• Status: Expired due to Term

• Current Assignee: Edward L. Skoch
• Original Assignee: Edward L. Skoch
• Inventors: Skoch, Edward L.
• Primary Examiner(s): Wayner, William E.
• Application Number:
  US05/131,170
• Time in Patent Office: 925 Days
• Field of Search: 98/4D,4DL,4B,33R,41AV 251/318,121 239/601,579
• US Class Current: 454/292
• CPC Class Codes: F24F 13/06 Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
• CPC Class Codes: F24F 13/16 built up of parallelly-movable plates

Abstract

An air diffuser to be connected in a hot or cold air distribution system and including a vaned upper section to be connected with a supply duct and a vaned lower section telescopically and adjustably connected with the upper section for distributing the air in a room, Baffle plates are insertable between the outer ends of adjacent vanes on the lower section for blocking or proportioning air flow. A single knob member regulates the volume of air flow and can be manipulated to shut off all air flow.

Claims

1. An air diffuser comprising:

an upper diffuser section open at both ends for axial air flow therethrough and having an upright side wall and radial vanes connected with said side wall;

a lower diffuser section telescoped therewith for vertical movement relative to said side wall, said lower diffuser section having means vertically aligned with said vanes for directing the flow of air for discharge in one or more directions, and also having baffle means between said vertically aligned means for proportioning the volume of air to be discharged in said one or more directions; and

means between said diffuser sections for vertically adjusting said lower section relative to said uPper section.

2. An air diffuser as defined in claim 1, wherein vertical guide means is carried by one of the sections for guiding relative vertical movement of the sections.

3. An air diffuser as defined in claim 1, wherein the lower diffuser section includes a horizontal air diffuser plate and wherein the means for proportioning the volume of air flow in said one or more directions is carried by said air diffuser plate.

4. An air diffuser as defined in claim 1, wherein the lower diffuser section includes a horizontal air diffuser plate and wherein the means for directing the air flow in one or more directions comprises radial vanes carried by said air diffuser plate.

5. An air diffuser as defined in claim 1, wherein the lower diffuser section includes a horizontal air diffuser plate;

and wherein the means for directing the air flow comprises radial vanes carried by the diffuser plate; and

wherein the means for proportioning the volume of air flow in said one or more directions comprises baffle plates carried by the diffuser plate.

6. An air diffuser as defined in claim 5, wherein the baffles are vertical and are disposed between the outer ends of adjacent radial vanes.

7. An air diffuser as defined in claim 6, wherein the baffle plate has vertically extending legs at the opposite ends thereof.

8. An air diffuser as defined in claim 6, wherein the baffle plate has a body with at least one longitudinal score line thereon and along which the body can be divided to reduce its transverse width.

9. An air diffuser as defined in claim 4, in which the guide means comprises vertical posts carried by the air diffuser plate.

10. An air diffuser as defined in claim 9, wherein the guide posts are located at the outer end of the radial vanes.

11. An air diffuser as defined in claim 9, wherein the guide posts have vertical grooves, and the baffles are mounted in said grooves.

12. An air diffuser as defined in claim 9, wherein the side wall of the upper diffuser section has a prescribed geometrical configuration;

and wherein the lower diffuser section is telescoped within said side wall with the guide posts spaced with slight clearance from said side wall.

13. An air diffuser as defined in claim 9, wherein the guide posts are formed by enlarged portions at the outer end of the radial vanes and extend upwardly higher than the radial vanes.

14. An air diffuser as defined in claim 1, wherein the upper diffuser section includes a central core having a threaded portion, and wherein the radial vanes thereof connect said central core with the side walls and wherein the adjusting means includes a threaded member mounted in said core and having a portion extending through the lower diffuser section;

and wherein a knob is mounted upon said extended portion of said threaded member below said lower diffuser section.

15. An air diffuser as defined in claim 1, wherein the lower diffuser section comprises a horizontal air diffuser plate, a vertical hollow boss on the upper side of said plate;

and wherein the means for directing air flow comprises radial vanes extending outwardly from said central boss;

a vertical guide post located at the outer end of each radial vane; and

wherein adjacent guide posts having confronting grooves to receive the ends of a baffle plate.

16. An air diffuser as defined in claim 1, wherein a horizontal mounting flange 14 extends outwardly from the lower edge of the upright side wall of the upper diffuser section for attachment to a ceiling.

17. An air diffuser as defined in claim 16, including a gasket disposed at the lower side of the horizontal flange, and wherein the lower diffuser section includes a diffuser plate of sufficient size to engage said gasket upon closing of the diffuser.

18. An air diffuser as defined in claim 17, wherein the diffuser plate has an upwardly extending marginal molding on its upper side for positioning in engagement with the ceiling to eliminate a gap therebetween when said diffuser plate is in iTs closed position.