US4805418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indoor unit for room air conditioners
Assignee: Bosch Corp
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Filing: 1987-11-27
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Granted: 1989-02-21
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Expires: 2007-11-27
Abstract
Abstract An indoor unit for room air conditioners includes a case having two compartments which are separated by a heat exchanger and are connected respectively to an air inlet and an air outlet. A side wall of the case in which the air outlet is formed and a side wall of the case in which the air outlet is formed can be changed without using a separate component. With this construction, the indoor unit can be installed in various houses or buildings of different types and hence is suitable for mass-production.
Inventors
- 👤 Yutaka Ishizuka
- 👤 Teruyuki Nagao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:54
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/0007; F24F1/0011; F24F1/0014
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
246 words
An indoor unit for room air conditioners, comprising; (a) a substantially rectangular hollow case having first and second adjacent substantially perpendicular side walls; (b) an air inlet and an air outlet in said substantially rectangular hollow case for fluidly connecting the interior and the exterior of said hollow case, and each said air inlet and air outlet being in said first side wall of said hollow case; (c) a heat exchanger having first and second ends disposed in said case, said first end of said heat exchanger being connected to said first side wall of said rectangular case substantially at a midpoint of said first side wall, said second end of said heat exchanger being connected to said second side wall adjoining said first side wall at a portion adjacent to one end of said second side wall remote from said first side wall, and said heat exchanger separating the interior of said case into an intake compartment fluidly connected with said air inlet and a discharge compartment fluidly connected with said air outlet; (d) a scroll-shaped blower unit disposed in said discharge compartment, said scroll-shaped blower unit having a discharge opening located at a position in which said scroll-shaped blower unit has a maximum outside diameter; and (e) connecting means attached to said discharge opening of said blower unit and to said air outlet in said first side wall of said substantially rectangular hollow case for fluidly communicating said discharge opening and said air outlet.
Claim 2
Dependent Claim
246 words
An indoor unit for room air conditioners, comprising; (a) a substantially rectangular hollow case having first and second adjacent substantially perpendicular side walls; (b) an air inlet and an air outlet in said substantially rectangular hollow case for fluidly connecting the interior and the exterior of said hollow case, and each said air inlet and air outlet being in said first side wall of said hollow case; (c) a heat exchanger having first and second ends disposed in said case, said first end of said heat exchanger being connected to said first side wall of said rectangular case substantially at a midpoint of said first side wall, said second end of said heat exchanger being connected to said second side wall adjoining said first side wall at a portion adjacent to one end of said second side wall remote from said first side wall, and said heat exchanger separating the interior of said case into an intake compartment fluidly connected with said air inlet and a discharge compartment fluidly connected with said air outlet; (d) a scroll-shaped blower unit disposed in said discharge compartment, said scroll-shaped blower unit having a discharge opening located at a position in which said scroll-shaped blower unit has a maximum outside diameter; and (e) connecting means attached to said discharge opening of said blower unit and to said air outlet in said first side wall of said substantially rectangular hollow case for fluidly communicating said discharge opening and said air outlet.
Claim 3
Dependent Claim
14 words
A device as in claim 1, wherein said connecting means is an intermediate duct.
References Cited (Backward Citations)
US3174541A
Cited
US3516483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |