US3919928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended ceiling and air distribution arrangement
Assignee: Wehr Corp
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Filing: 1973-12-26
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Granted: 1975-11-18
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Expires: 1993-12-26
Abstract
Abstract A linear air plenum formed of duct board (generally a thickness of fiber glass) carries a linear diffuser. The air plenumdiffuser assembly is used with a ceiling having a series of main and cross-runner T-bars, or similar ceiling support members. With the diffuser carried by the linear plenum, a slot is provided in the ceiling by an air track; alternatively the slot may be defined by an air bar, which includes the diffuser elements in which case the air plenum is provided with an air outlet collar which registers with the air bar. A number of these assemblies are connected end-to-end and arranged parallel to one of the cross or main runners and at right angles to the others. The lengths of the air plenum and the attached diffuser, or air outlet collar, are related to the module upon which the ceiling is designed and the diffuser, or outlet collar, length is less than the overall length of the air plenum. The areas of the air plenums between adjacent diffusers, or air outlet collars, are closed and spaced above the runners to be capable of functioning as air return areas.
Inventors
- 👤 Robert R Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:23
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/02; F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
229 words
In combination in a suspended ceiling including a plurality of ceiling members, a plurality of ceiling support members and means defining an elongated slot in said ceiling the improvement of an air delivery arrangement comprising, in combination, means including a generally closed tubular wall portion defining an elongated, linear plenum air passage, means defining an elongated, linear opening in said wall portion and extending parallel to the longitudinal axis of said plenum air passage, the length of said opening being less than the overall length of said linear plenum air passage, means for delivering air to said plenum air passage for discharge through said opening, means having a length generally equal to the length of said opening and connected to said wall portion along said opening for connecting said opening to said means defining said slot only along a length of said slot corresponding generally to the length of said opening so that air delivered to said plenum air passage is discharged through a limited length of said slot generally equal to the length of said opening, and said linear plenum being spaced from said ceiling support members so that air is delivered through said slot from said opening while the length of said slot adjacent that through which air is delivered is in alignment with a closed extension of said tubular wall portion and provides an air return.
Claim 2
Dependent Claim
229 words
In combination in a suspended ceiling including a plurality of ceiling members, a plurality of ceiling support members and means defining an elongated slot in said ceiling the improvement of an air delivery arrangement comprising, in combination, means including a generally closed tubular wall portion defining an elongated, linear plenum air passage, means defining an elongated, linear opening in said wall portion and extending parallel to the longitudinal axis of said plenum air passage, the length of said opening being less than the overall length of said linear plenum air passage, means for delivering air to said plenum air passage for discharge through said opening, means having a length generally equal to the length of said opening and connected to said wall portion along said opening for connecting said opening to said means defining said slot only along a length of said slot corresponding generally to the length of said opening so that air delivered to said plenum air passage is discharged through a limited length of said slot generally equal to the length of said opening, and said linear plenum being spaced from said ceiling support members so that air is delivered through said slot from said opening while the length of said slot adjacent that through which air is delivered is in alignment with a closed extension of said tubular wall portion and provides an air return.
Claim 3
Dependent Claim
53 words
The apparatus of claim 1 wherein said means connected to said wall portion at said opening comprises a diffuser assembly including, spaced walls projecting laterally from said wall portion and defining a passage therebetween, and pattern control means in said passage to deflect flow through said passage prior to discharge through said slot.
Claim 4
Dependent Claim
37 words
The apparatus of claim 1 wherein said means connected to said wall portion at said opening comprises a collar having spaced side and end walls and projecting laterally from said wall portion to define a passage therebetween.
Claim 5
Dependent Claim
150 words
The combination of claim 1 wherein said ceiling support members comprise a first set of mutually parallel ceiling support members and a second set of mutually parallel ceiling support members arranged generally perpendicular to said first set, including a plurality of said linear plenums all generally identical in construction and each having a length greater than the spacing between adjacent ones of said first set of ceiling support members, wherein said linear plenums are connected end-to-end parallel to said second set of ceiling support members, and wherein at least two of said linear plenums include said opening and said means connected to said wall portions at said opening, so that air is delivered through portions of said slot from said openings while the lengths of said slot adjacent those slot portions through which air is delivered are in alignment with closed extensions of said linear plenums and provide air returns.
Claim 6
Dependent Claim
65 words
The apparatus of claim 4 wherein said means connected to said wall portions at said openings comprise diffuser assemblies including spaced walls projecting laterally from said wall portions and defining a passage therebetween, and pattern control means in said passages to deflect through said passage prior to discharge through said slot, and wherein said diffusers are centered relative to the length of said linear plenums.
Claim 7
Dependent Claim
55 words
The apparatus of claim 4 wherein said means connected to each of said wall portions at said openings comprises a collar having spaced side and end walls and projecting laterally from said wall portions to define a passage therebetween, and wherein each of said collars are centered relative to the length of said linear plenums.
Claim 8
Dependent Claim
59 words
The apparatus of claim 5 wherein the ceiling support members of said first set are equally spaced, wherein said linear plenuMs each have a length substantially twice the spacing between adjacent ceiling support members of said first set, and wherein said diffusers have a length substantially equal to the spacing between adjacent ceiling support members of said first set.
Claim 9
Dependent Claim
59 words
The apparatus of claim 6 wherein the ceiling support members of said first set are equally spaced, wherein said linear plenums each have a length substantially twice the spacing between adjacent ceiling support members of said first set, and wherein said diffusers have a length substantially equal to the spacing between adjacent ceiling support members of said first set.
References Cited (Backward Citations)
US3319558A
Cited
US3353472A
Cited
US3301165A
Cited
US3420439A
Cited
US3411425A
Cited
US3383999A
Cited
US3444801A
Cited
US3516347A
Cited
US3577904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |