US3687055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air vane and fire damper for integrated ceiling systems and the like
Assignee: TEMPMASTER CORP
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Filing: 1970-12-15
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Granted: 1972-08-29
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Expires: 1990-12-15
Abstract
Abstract An air vane is inserted in the air passage of an air diffuser and extends longitudinally above the lower portion of the outlet (the inlet if a return air unit) slot. The air vane is supported at its lower surface by resting on a horizontal surface forming one side of the outlet slot of the air passage. One or more pin members may be either fixedly attached to the vane itself or to a side portion of the air passage. This pin member will be constructed of a suitable material, having a low melting point, so that when a fire occurs in a room area below the ceiling system utilizing the subject air vanes, the pin member will melt and vaporize thereby allowing the vane to fall downwardly and close off the outlet slot thereby providing a fire stop damper.
Inventors
- 👤 Frank J Dean Jr
- 👤 Neil J Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; A; A62; A62C; A62C2/00; A62C2/06; A62C2/24; A62C2/241; A62C2/242; F24F13/10; F24F13/14; F24F13/1426; F24F11/00; F24F11/30; F24F11/32; F24F11/33; F24F11/35; F24F2013/144; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1819
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
In an air diffuser or return air device suitable for use in integrated ceiling systems, the combination therewith of an air passage, a longitudinal slot defined in said air passage, said slot forming at least a portion of an opening into a room area being temperature conditioned, a removable air vane, means for supporting said air vane within said passage in a position to direct air flow through said slot, said vane being removable from said passage without the use of tools, said supporting means including a means for permitting the vane to move to an air flow shutoff position at a preselected temperature.
Claim 2
Dependent Claim
104 words
In an air diffuser or return air device suitable for use in integrated ceiling systems, the combination therewith of an air passage, a longitudinal slot defined in said air passage, said slot forming at least a portion of an opening into a room area being temperature conditioned, a removable air vane, means for supporting said air vane within said passage in a position to direct air flow through said slot, said vane being removable from said passage without the use of tools, said supporting means including a means for permitting the vane to move to an air flow shutoff position at a preselected temperature.
Claim 3
Dependent Claim
73 words
The combination as in claim 1 wherein said longitudinal slot is formed by at least two horizontal surfaces operably associated with said air passage, said vane being supported on a first edge portion thereof by at least one of said horizontal surfaces, said vane permitting moving means including at least one pin member, said pin member being located between a side portion of said air passage and a surface portion of said vane.
Claim 4
Dependent Claim
20 words
The combination as in claim 2 wherein said pin member is constructed of a material having a preselected melting point.
Claim 5
Dependent Claim
43 words
The combination as in claim 3 wherein said melting point corresponds to a temperature indicative of a fire within the vicinity of said vane, said vane thereby closing said longitudinal slot and precluding the spread of fire therethrough when said pin member melts.
Claim 6
Dependent Claim
66 words
The combination as in claim 1 wherein said air passage has at least one horizontally oriented flange forming a side portion of said slot, said vane being supported to define a longitudinal space between same and said flange, said vane and flange cooperating to deflect the air flow through said diffuser away from said flange and along the underside of a ceiling system adjacent said slot.
Claim 7
Dependent Claim
77 words
The combination as in claim 5 wherein said air passage has at least two horizontally oriented flanges forming the two longitudinal side portions of said slot, said vane being supported on a first edge portion thereof by at least one of said horizontally oriented flanges, said vane permitting moving means including at least one pin member, said pin member being located between a side portion of said air passage in the second edge portion of said vane.
Claim 8
Dependent Claim
20 words
The combination as in claim 6 wherein said pin member is constructed of a material having a preselected melting point.
Claim 9
Dependent Claim
43 words
The combination as in claim 7 wherein said melting point corresponds to the temperature indicative of a fire within the vicinity of said vane, said vane thereby closing said longitudinal slot and precluding the spread of fire therethrough when said pin member melts.
Claim 10
Dependent Claim
62 words
The combination as in claim 1 wherein said air diffuser or return air device is supported on the horizontal flanges of two spaced apart parallel T-bars, said air vane being supported on one of said horizontal flanges and said supporting means supporting the opposite side portion of said vane from said air passage to permit air to flow through said longitudinal slot.
Claim 11
Dependent Claim
56 words
The combination as in claim 9 wherein said vane permitting moving includes at least one pin member sensitive to a fire condition within the proximity of same vane, said member operable to cease functioning as a supporting means at a temperature corresponding to said fire condition thereby permitting said vane to move to said shutoff position.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |