US3602006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room air conditioner
Assignee: Westinghouse Electric Corp
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Filing: 1969-09-15
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Granted: 1971-08-31
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Expires: 1989-09-15
Abstract
Abstract A room air conditioner of the character having a main section depending along an outside building wall below the building opening and with a duct section connected to the building opening, the main section including an upper room air section and a lower outside air section, the room air section including a pair of centrifugal fans disposed with their axes extending horizontally and located in the lower part of the room air section with the centrifugal fan housings oriented to provide an upblast disposition, the fan discharge being conveyed upwardly and forwardly through a pair of ducts having expanding end sections at the upstream face of an evaporator extending across substantially the entire width of the room air section and disposed in registry with the upper air passage of the duct section.
Inventors
- 👤 Frederick S Metcalfe
- 👤 Edward M Wuesthoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:01
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
235 words
A room air conditioner comprising: a main section of substantially right-parallelepiped-shape containing an upper room air section, and a lower outside air section in stacked relationship with each other and separated by a generally horizontal wall therebetween, said main section being adapted to be positioned in an upright disposition along the outside of a wall of the room to be conditioned, said upper room air section having at least the upper portion of its inner face substantially open for the width of said main section; a separable duct section connecting said open face with an opening in said building wall, said duct section including an intermediate level wall therein separating said duct section into a lower return air passage, and an upper conditioned air passage; said room air section including a pair of upblast-disposed, centrifugal fans located in the lower portion of said room air section in spaced-apart relation, and with their axes generally horizontal and parallel to said building wall, a refrigerant evaporator coil extending across the upper portion of the opening in said room air section, and for substantially the entire width of said main section, the lower edge of said coil being on a level substantially meeting the outer edge of said intermediate level wall of said duct section; and means in said room air section defining a passage from the outlets of said fans to the upstream face of said coil.
Claim 2
Dependent Claim
235 words
A room air conditioner comprising: a main section of substantially right-parallelepiped-shape containing an upper room air section, and a lower outside air section in stacked relationship with each other and separated by a generally horizontal wall therebetween, said main section being adapted to be positioned in an upright disposition along the outside of a wall of the room to be conditioned, said upper room air section having at least the upper portion of its inner face substantially open for the width of said main section; a separable duct section connecting said open face with an opening in said building wall, said duct section including an intermediate level wall therein separating said duct section into a lower return air passage, and an upper conditioned air passage; said room air section including a pair of upblast-disposed, centrifugal fans located in the lower portion of said room air section in spaced-apart relation, and with their axes generally horizontal and parallel to said building wall, a refrigerant evaporator coil extending across the upper portion of the opening in said room air section, and for substantially the entire width of said main section, the lower edge of said coil being on a level substantially meeting the outer edge of said intermediate level wall of said duct section; and means in said room air section defining a passage from the outlets of said fans to the upstream face of said coil.
Claim 3
Dependent Claim
36 words
A room air conditioner according to claim 1 wherein: each of said pair of said fans is of the double-inlet, scroll Type, both of said fans being driven by a single motor located between said fans.
Claim 4
Dependent Claim
105 words
A room air conditioner according to claim 1 wherein: said means defining said passage from the outlets of said fans to the upstream face of said coil comprises a separate duct section for each fan connected to the upblast opening of each fan for confining the upwardly directed discharge of air from each fan and then turning it toward the upstream face of said evaporator coil, each of said ducts including laterally flared end portions to expand the width of the airflow space to substantially the entire width of said evaporator coil at a location generally coincident with the upstream face of said evaporator coil.
Claim 5
Dependent Claim
47 words
A room air conditioner according to claim 3 including: a condensate pan for said evaporator coil, said condensate pan and said means defining a passage from the outlets of said fans to the upstream face of said coil comprising a monolithic, formed section of a plastic material.
Claim 6
Dependent Claim
228 words
A room air conditioner comprising: a main section of substantially a rectangular box-shape comprising a room air section and an outside air section, each of said sections having a separate bottom wall dimensionally substantially equal to each other, and a cubic size substantially equal to each other, and a cubic size substantially equal to each other to accommodate selectively placing said sections in stacked, and side-by-side relation, said room air section including means defining an opening located in the upper portion of the inner wall thereof; duct means for coupling said room air section opening to an opening in a wall of a building to be conditioned, said duct means including an upper conditioned air passage, and a lower return air passage; said room air section including a pair of upblast-disposed, centrifugal fans located in the lower portion thereof in spaced apart relation and with their axes generally horizontal and parallel to said building wall, a motor in said room air section for driving said fans, a refrigerant evaporator coil extending across the upper part of said opening in said room air section and for substantially the entire width of said room air section, said evaporator coil substantially registering with said upper conditioned air passage in said duct means; and means defining an expanding air passage between said centrifugal fans and the upstream face of said evaporator coil.
Claim 7
Dependent Claim
228 words
A room air conditioner comprising: a main section of substantially a rectangular box-shape comprising a room air section and an outside air section, each of said sections having a separate bottom wall dimensionally substantially equal to each other, and a cubic size substantially equal to each other, and a cubic size substantially equal to each other to accommodate selectively placing said sections in stacked, and side-by-side relation, said room air section including means defining an opening located in the upper portion of the inner wall thereof; duct means for coupling said room air section opening to an opening in a wall of a building to be conditioned, said duct means including an upper conditioned air passage, and a lower return air passage; said room air section including a pair of upblast-disposed, centrifugal fans located in the lower portion thereof in spaced apart relation and with their axes generally horizontal and parallel to said building wall, a motor in said room air section for driving said fans, a refrigerant evaporator coil extending across the upper part of said opening in said room air section and for substantially the entire width of said room air section, said evaporator coil substantially registering with said upper conditioned air passage in said duct means; and means defining an expanding air passage between said centrifugal fans and the upstream face of said evaporator coil.
Claim 8
Dependent Claim
223 words
A room air conditioner comprising: a main section of substantially rectangular box-shape comprising a room air section and an outside air section in stacked relationship, each of said sections including an independent bottom wall of substantially equal rectangular dimensions, both of said sections being of substantially equal cubic size, said room air section including means defining an opening located in the upper portion of the inner wall thereof providing an opening for communication of air between said room air section and the room to be conditioned; a duct section for coupling said room air section opening to an opening in a wall of a building to be conditioned, said duct section including an upper conditioned air passage, and a lower return air passage; said room air section including a pair of upblast-disposed, centrifugal fans located in the lower portion thereof in spaced apart relation and with their axes generally horizontal and parallel to said building wall, a motor in said room air section for driving said fans, a refrigerant evaporator coil extending across the upper part of said room air section opening and for substantially the entire width, said coil being in substantial registry with said upper conditioned air passage in said duct section; and means defining an expanding air passage between said centrifugal fans and the upstream face of said evaporator coil.
Claim 9
Dependent Claim
223 words
A room air conditioner comprising: a main section of substantially rectangular box-shape comprising a room air section and an outside air section in stacked relationship, each of said sections including an independent bottom wall of substantially equal rectangular dimensions, both of said sections being of substantially equal cubic size, said room air section including means defining an opening located in the upper portion of the inner wall thereof providing an opening for communication of air between said room air section and the room to be conditioned; a duct section for coupling said room air section opening to an opening in a wall of a building to be conditioned, said duct section including an upper conditioned air passage, and a lower return air passage; said room air section including a pair of upblast-disposed, centrifugal fans located in the lower portion thereof in spaced apart relation and with their axes generally horizontal and parallel to said building wall, a motor in said room air section for driving said fans, a refrigerant evaporator coil extending across the upper part of said room air section opening and for substantially the entire width, said coil being in substantial registry with said upper conditioned air passage in said duct section; and means defining an expanding air passage between said centrifugal fans and the upstream face of said evaporator coil.
Claim 10
Dependent Claim
40 words
A room air conditioner according to claim 6 wherein: said means defining said expanding air passage from said centrifugal fans to said evaporator inclUdes integrally formed means for supporting said evaporator and providing an evaporator drip pan underlying said evaporator.
Claim 11
Dependent Claim
94 words
A room air conditioner according to claim 7 wherein: said centrifugal fans include scroll shaped housing means, each of said housing means includes an upright metallic wall of generally planar form having its lower edge secured to the bottom wall of said room air section, the remainder of said scroll shaped housing essentially comprising a formed member supported solely from said upstanding wall forming an opposite side of said housing; said means forming said expanded passageway and said evaporator support and evaporator drain pan being supported by said fan housings and said upright walls.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |