Patent US3757668A successfully refreshed from Google Patents.
US3757668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
T-bar mounted air diffuser
Assignee: TEMPMASTER CORP
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Filing: 1973-02-12
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Granted: 1973-09-11
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Expires: 1993-02-12
Abstract
Abstract An air diffuser device is attachable to T-bar supports which hang or are otherwise supported from a ceiling structure. The diffuser device terminates in an integrally formed longitudinal single or double directional outlet slot with one side of the slot being shaped to facilitate directing the air flow from the diffuser device along the underside of the ceiling adjacent the shape side. The side of the device opposite the shaped side cooperates to divert the air in the aforesaid direction and does so independently of the T-bar parallel to the outlet slot. Supporting gussets (or end support plates) facilitate the mounting of the device on transverse T-bars (T-bars which are located in the supporting grid in a direction that is transverse to the outlet slot of said diffuser device). The diffuser device can also be utilized as return air inlets for return air ducts.
Inventors
- 👤 F Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:26
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072; E; E04; E04B; E04B9/00; E04B9/02; E04B2009/026
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
264 words
An air diffuser or return air device for use in ceiling systems utilizing T-bar supports therein, said T-bar supports having an inverted T-shaped cross section, said device comprising: a housing; an inlet to said housing, said inlet suitable for interconnEction with air ducts so that conditioned air may be transferred from said ducts interiorly of said housing, at least one longitudinal outlet slot integrally formed with said device, said slot being formed in part by first and second elongated side portions and operable to direct the flow of air therethrough onto the lower surface of said ceiling adjacent said second slot side portion, said first side portion being located adjacent and parallel to a T-bar support and whereby said first side portion being located adjacent and parallel to a T-bar support and whereby said first side portion has a lowermost air turning surface substantially parallel to and spaced from the upper horizontal surface of the adjacent T-bar support raised above and has an edge extending beyond said Tbar support, said second slot side portion having an angled surface and cooperating with the first side portion to define an outlet slot of fixed cross section independent of said adjacent T-bar support, said air turning surface contacting and turning the air flow direction through said slot independently of the T-bar support located adjacent and parallel to said longitudinal outlet slot; and means associated with the ends of said housing for supporting substantially the entire weight of said device on T-bar supports that are transversely oriented with respect to the longitudinal center line of said outlet slot.
Claim 2
Dependent Claim
264 words
An air diffuser or return air device for use in ceiling systems utilizing T-bar supports therein, said T-bar supports having an inverted T-shaped cross section, said device comprising: a housing; an inlet to said housing, said inlet suitable for interconnEction with air ducts so that conditioned air may be transferred from said ducts interiorly of said housing, at least one longitudinal outlet slot integrally formed with said device, said slot being formed in part by first and second elongated side portions and operable to direct the flow of air therethrough onto the lower surface of said ceiling adjacent said second slot side portion, said first side portion being located adjacent and parallel to a T-bar support and whereby said first side portion being located adjacent and parallel to a T-bar support and whereby said first side portion has a lowermost air turning surface substantially parallel to and spaced from the upper horizontal surface of the adjacent T-bar support raised above and has an edge extending beyond said Tbar support, said second slot side portion having an angled surface and cooperating with the first side portion to define an outlet slot of fixed cross section independent of said adjacent T-bar support, said air turning surface contacting and turning the air flow direction through said slot independently of the T-bar support located adjacent and parallel to said longitudinal outlet slot; and means associated with the ends of said housing for supporting substantially the entire weight of said device on T-bar supports that are transversely oriented with respect to the longitudinal center line of said outlet slot.
Claim 3
Dependent Claim
27 words
The combination as in claim 1 wherein said second side portion has at least three longitudinal surfaces lying in different planes and integrally connected with said housing.
Claim 4
Dependent Claim
40 words
The combination as in claim 2 wherein said diffuser has at least two longitudinal outlet slots, each outlet slot having said three surfaced side portion, said slots being oriented to direct the flow of air therethrough and in opposite directions.
Claim 5
Dependent Claim
45 words
The combination as in claim 3 wherein slots having a preselected shape are defined in side portions of said housing, said side portion slots permitting a portion of said device to straddle a T-bar support parallel to the longitudinal center line of said outlet slots.
Claim 6
Dependent Claim
57 words
The combination as in claim 4 wherein each side portion has a supporting gusset fixedly attached thereto, said side slot being located in each one of said supporting gussets, said supporting gussets operable to support the weight of said air diffuser on T-bar supports transversely oriented with respect to said longitudinal center line of said outlet slots.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |