Patent US4679495A successfully refreshed from Google Patents.
US4679495A
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Air diffuser
Assignee: Individual
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Filing: 1981-05-01
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Granted: 1987-07-14
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Expires: 2001-05-01
Abstract
Abstract An air diffuser for a ceiling or wall conditioned air outlet. The diffuser has a plurality of nozzles separating the flow of air from the outlet to the ambient into a plurality of diverging air jet streams, with the result that air flowing from the outlet is diffused and substantially uniformly distributed throughout an enclosure, without causing uncomfortable drafts.
Inventors
- 👤 Howard W. Locker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:45
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
183 words
An air diffuser for an air outlet, said air diffuser comprising a plurality of regularly disposed stationary rigid diverging nozzles dividing the flow of air from said outlet into separate diverging air streams, said nozzles each having substantially parallel opposite stationary sidewalls and being substantially square in section, and said nozzles having longitudinal axes mutually disposed at a predetermined constant angle in the range of about 15° to 30°, wherein said nozzles are formed by a pair of substantially parallel flat baffle plates and by a plurality of stationary wedge members disposed between said baffle plates, each of said wedge members has a leading edge formed by a pair of flat walls converging at said predetermined constant angle in the range of about 15° to 30° and is arranged such that opposite walls of consecutive wedge members are substantially parallel and form with said baffle plates said nozzles having substantially square cross-section, and each of said nozzles has an outlet separated from the outlet of an adjacent nozzle by a distance which is at least one-half the width of each of said nozzles.
Claim 2
Dependent Claim
183 words
An air diffuser for an air outlet, said air diffuser comprising a plurality of regularly disposed stationary rigid diverging nozzles dividing the flow of air from said outlet into separate diverging air streams, said nozzles each having substantially parallel opposite stationary sidewalls and being substantially square in section, and said nozzles having longitudinal axes mutually disposed at a predetermined constant angle in the range of about 15° to 30°, wherein said nozzles are formed by a pair of substantially parallel flat baffle plates and by a plurality of stationary wedge members disposed between said baffle plates, each of said wedge members has a leading edge formed by a pair of flat walls converging at said predetermined constant angle in the range of about 15° to 30° and is arranged such that opposite walls of consecutive wedge members are substantially parallel and form with said baffle plates said nozzles having substantially square cross-section, and each of said nozzles has an outlet separated from the outlet of an adjacent nozzle by a distance which is at least one-half the width of each of said nozzles.
Claim 3
Dependent Claim
163 words
An air diffuser for an air outlet, said air diffuser comprising a plurality of regularly disposed stationary rigid diverging nozzles dividing the flow of air from said outlet into separate diverging air streams, each of said nozzles having substantially parallel opposite stationary sidewalls and being substantially square in section, and said nozzles having longitudinal axes mutually disposed at a constant predetermined diverging angle in the range of about 15° to 30°, wherein said nozzles are each made of a length of square tubular duct and have their longitudinal axes mutually disposed at said constant predetermined angle in the range of about 15° to 30°, adjoining sidewalls of adjacent nozzles converge at a sharp leading edge and intersect at said constant predetermined angle, and each of said nozzles has an outlet separated from the outlet of an adjacent nozzle by a distance which is at least one-half the width of each of said nozzles and a length which is at least 1.55 said width.
Claim 4
Dependent Claim
163 words
An air diffuser for an air outlet, said air diffuser comprising a plurality of regularly disposed stationary rigid diverging nozzles dividing the flow of air from said outlet into separate diverging air streams, each of said nozzles having substantially parallel opposite stationary sidewalls and being substantially square in section, and said nozzles having longitudinal axes mutually disposed at a constant predetermined diverging angle in the range of about 15° to 30°, wherein said nozzles are each made of a length of square tubular duct and have their longitudinal axes mutually disposed at said constant predetermined angle in the range of about 15° to 30°, adjoining sidewalls of adjacent nozzles converge at a sharp leading edge and intersect at said constant predetermined angle, and each of said nozzles has an outlet separated from the outlet of an adjacent nozzle by a distance which is at least one-half the width of each of said nozzles and a length which is at least 1.55 said width.
Claim 5
Dependent Claim
21 words
The air diffuser of claim 1 wherein said nozzles each have a length which is at least 1.55 the width thereof.
Claim 6
Dependent Claim
20 words
The air diffuser of claim 1 wherein the inlets of said nozzles are disposed about an arc of a circle.
Claim 7
Dependent Claim
16 words
The air diffuser of claim 1 wherein said nozzles have inlets disposed along a single plane.
Claim 8
Dependent Claim
62 words
The air diffuser of claim 1 wherein said nozzles are disposed in at least two superimposed rows, each of said rows making at least an angle of about 15° with the other row, and each nozzle in each row having a longitudinal axis disposed at at least about 15° relative to the longitudinal axis of the next consecutive nozzle in said row.
Claim 9
Dependent Claim
20 words
The air diffuser of claim 2 wherein the inlets of said nozzles are disposed about an arc of a circle.
Claim 10
Dependent Claim
16 words
The air diffuser of claim 2 wherein said nozzles have inlets disposed along a single plane.
References Cited (Backward Citations)
US3703141A
Cited
US3760708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |