US4603680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace inducer outlet box assembly
Assignee: Carrier Corp
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Filing: 1984-12-10
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Granted: 1986-08-05
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Expires: 2004-12-10
Abstract
Abstract A furnace flue gas draft inducer outlet box assembly is provided for connecting an inducer housing to a vent pipe, and comprises a plurality of differently directed openings to allow the vent pipe to be connected thereto in one of a plurality of different orientations, thereby facilitating ease of installation of the furnace. When incorporated with a condensing furnace, the inducer outlet assembly further comprises a condensate collecting system for collecting a return flow of condensate formed in a vent pipe and for delivering the condensate out of the inducer housing to prevent contact with the inducer motor, wheel and the like.
Inventors
- 👤 Daniel J. Dempsey
- 👤 Kent L. Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:00
CPC Classifications
F; F24; F24H; F24H8/00; F24H8/006; F23; F23J; F23J13/00; F23J13/04; F23J2213/00; F23J2213/20; F23J2213/203; F23J2900/00; F23J2900/13004; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
In a furnace for raising the temperature of circulating air, comprising: a heat exchanger assembly defining a flow path for a heating fluid and having an inlet and an outlet, a heating means in proximity to said heat exchanger assembly inlet for supplying the heating fluid, an inducer draft means having an inducer outlet for drawing the heating fluid through said flow path, said heat exchanger assembly outlet, and said inducer outlet, and a vent for exhausting the heating fluid, an inducer outlet box assembly, comprising: a fluid transfer chamber being directly interconnected in fluid communication between said inducer outlet and said vent, said fluid transfer chamber including a plurality of differently directed openings being individually connectable to said vent, one of said openings being selectively connected to said vent, and blocking means for selectively closing off the other ones of said chamber openings, whereby said vent can be selectively connected to said chamber in one of a plurality of different directions.
Claim 2
Dependent Claim
162 words
In a furnace for raising the temperature of circulating air, comprising: a heat exchanger assembly defining a flow path for a heating fluid and having an inlet and an outlet, a heating means in proximity to said heat exchanger assembly inlet for supplying the heating fluid, an inducer draft means having an inducer outlet for drawing the heating fluid through said flow path, said heat exchanger assembly outlet, and said inducer outlet, and a vent for exhausting the heating fluid, an inducer outlet box assembly, comprising: a fluid transfer chamber being directly interconnected in fluid communication between said inducer outlet and said vent, said fluid transfer chamber including a plurality of differently directed openings being individually connectable to said vent, one of said openings being selectively connected to said vent, and blocking means for selectively closing off the other ones of said chamber openings, whereby said vent can be selectively connected to said chamber in one of a plurality of different directions.
Claim 3
Dependent Claim
32 words
The furnace of claim 1 further comprising collecting means in said fluid transfer chamber for collecting a return flow of a portion of the heating fluid water vapor condensed in said vent.
Claim 4
Dependent Claim
21 words
The furnace of claim 2 further comprising a condensate drain means in said inducer draft means for collecting condensate formed therein.
Claim 5
Dependent Claim
57 words
The furnace of claim 3 wherein said collecting means includes a channel adjacent an inner surface portion of said chamber and below said plurality of differently directed openings, said channel including a bottom wall member and a drain outlet in said bottom wall member, said bottom wall member sloping downwardly from said openings to said drain outlet.
Claim 6
Dependent Claim
43 words
The furnace of claim 4 further comprising a delivery means connected to said condensate drain means and said drain outlet and said condensate trap assembly for externally directing the return flow of condensate from said vent, said inducer draft means, and said chamber.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |