US3783637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room air conditioner
Assignee: KEEP RITE PRODUCTS Ltd
•
Filing: 1972-03-06
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Granted: 1974-01-08
•
Expires: 1992-03-06
Abstract
Abstract A room air conditioner having a relatively short front to back dimension made possible by a novel compact arrangement of the condenser, compressor and evaporator on the chassis of the unit in combination with a novel air flow pattern through the unit. The interior of the air conditioner casing is divided lengthwise by an upright partition into a rear compartment in which the condenser and compressor are located and a front compartment in which the evaporator and blower are arranged. The blower is of the axial intake, radial discharge type and has its inlet facing the partition rather than the front grille of the unit so as to reduce the noise incident to the high velocity air stream. The unit also includes a pair of ventilating doors on the partition arranged to be operated by a single manually operable control knob for selectively admitting outside air to the room and discharging room air to the outside. The front grille inside the room is provided with a novel air scoop and vane arrangement for directing the conditioned air effectively in the desired direction. The air conditioner also includes in the condenser compartment a slinger ring and deflector arrangement for picking up evaporator condensate and depositing it on the coils of the condenser to evaporate the condensate and discharge it from the unit with the condenser cooling air.
Inventors
- 👤 N Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:51
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/028; F24F1/0284; F24F1/03; F24F1/031; F24F11/00; F24F11/89
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
340 words
A room air conditioner of the type adapted to be mounted in an outside wall of a room comprising a casing having front and rear panels, opposite end panels and a top panel, an upright partition in said casing extending lengthwise therein and dividing the interior of the casing into a rear compartment and a front compartment, an upright generally flat condenser in the rear compartment extending generally parallel to and adjacent said rear panel, a compressor unit in said rear compartment located laterally adjacent the other end of said compartment, said compressor unit and condenser being disposed in end to end relation in a direction laterally of said end compartment with the rear side of the compressor unit disposed adjacent said rear panel, a fan motor in said rear compartment disposed between said condenser and said partition, said motor having an output shaft extending transversely and through said partition, a fan on said shaft within said rear compartment and located adjacent the condenser, said rear compartment having openings therein so that when the fan is operated air is directed across the condenser, an upright generally flat evaporator in said front compartment, said evaporator extending generally parallel to and adjacent said panel, said evaporator being located in said front compartment laterally adjacent the end thereof opposite the condenser, a blower in said front compartment located laterally adjacent the other end of said front compartment, said evaporator and said blower being located in end to end relation in a direction laterally of said front compartment, said blower having an impellor connected to the portion of said motor shaft extending through said partition and having an axial air intake and a radially disposed outlet, said axial air intake of the blower facing said partition and being spaced forwardly therefrom, air inlet and outlet openings in said front compartment disposed such that when the blower is operated room air is drawn across the evaporator, into the inlet of said blower and is then directed through the blower outlet and back into the room.
Claim 2
Dependent Claim
340 words
A room air conditioner of the type adapted to be mounted in an outside wall of a room comprising a casing having front and rear panels, opposite end panels and a top panel, an upright partition in said casing extending lengthwise therein and dividing the interior of the casing into a rear compartment and a front compartment, an upright generally flat condenser in the rear compartment extending generally parallel to and adjacent said rear panel, a compressor unit in said rear compartment located laterally adjacent the other end of said compartment, said compressor unit and condenser being disposed in end to end relation in a direction laterally of said end compartment with the rear side of the compressor unit disposed adjacent said rear panel, a fan motor in said rear compartment disposed between said condenser and said partition, said motor having an output shaft extending transversely and through said partition, a fan on said shaft within said rear compartment and located adjacent the condenser, said rear compartment having openings therein so that when the fan is operated air is directed across the condenser, an upright generally flat evaporator in said front compartment, said evaporator extending generally parallel to and adjacent said panel, said evaporator being located in said front compartment laterally adjacent the end thereof opposite the condenser, a blower in said front compartment located laterally adjacent the other end of said front compartment, said evaporator and said blower being located in end to end relation in a direction laterally of said front compartment, said blower having an impellor connected to the portion of said motor shaft extending through said partition and having an axial air intake and a radially disposed outlet, said axial air intake of the blower facing said partition and being spaced forwardly therefrom, air inlet and outlet openings in said front compartment disposed such that when the blower is operated room air is drawn across the evaporator, into the inlet of said blower and is then directed through the blower outlet and back into the room.
Claim 3
Dependent Claim
122 words
An air conditioner as set forth in claim 1 including means forming a horizontal partition in said front compartment above said evaporator and abovE said blower intake, said horizontal partition dividing said front compartment into top and bottom chambers, the outlet of said blower extending upwardly through said horizontal partition for discharging air from the lower chamber into the upper chamber, said front compartment having an air inlet below and an air outlet above said horizontal partition so that when the blower is operated room air is drawn into said lower chamber through said last-mentioned air inlet, across said evaporator and is directed by the blower into said upper chamber and then outwardly through said last-mentioned air outlet back into the room.
Claim 4
Dependent Claim
256 words
A room air conditioner including a casing having an upright partition therein dividing the interior of the casing into front and rear compartments, a condensing unit in said rear compartment, means for drawing outside air into said rear compartment across said condensing unit and then discharging said air to the outside, a partition in said front compartment dividing the front compartment into an air inlet chamber and an air outlet chamber, an evaporator in said air inlet chamber, means for drawing room air into said inlet chamber across the evaporator, directing said air into said outlet chamber and then discharging the air back into the room, said upright partition having a pair of openings therein, one of said openings establishing communication between said rear compartment and said outlet chamber and the other opening establishing communication between said rear compartment and said inlet chamber, a door for controlling each of said openings, each of said doors being provided with a vertical spindle by means of which the doors are pivotally supported, each of said spindles being supported for rotation about their longitudinal axes on said upright partition and each of said doors being pivotable with and in response to rotation of its respective spindle, said second partition extending generally horizontally between said two openings, said spindles being axially aligned vertically one above the other with their adjacent ends interconnected by a rotary lost motion coupling, both of said doors being adapted to be pivoted to the open position by rotation of said spindles in the same direction.
Claim 5
Dependent Claim
256 words
A room air conditioner including a casing having an upright partition therein dividing the interior of the casing into front and rear compartments, a condensing unit in said rear compartment, means for drawing outside air into said rear compartment across said condensing unit and then discharging said air to the outside, a partition in said front compartment dividing the front compartment into an air inlet chamber and an air outlet chamber, an evaporator in said air inlet chamber, means for drawing room air into said inlet chamber across the evaporator, directing said air into said outlet chamber and then discharging the air back into the room, said upright partition having a pair of openings therein, one of said openings establishing communication between said rear compartment and said outlet chamber and the other opening establishing communication between said rear compartment and said inlet chamber, a door for controlling each of said openings, each of said doors being provided with a vertical spindle by means of which the doors are pivotally supported, each of said spindles being supported for rotation about their longitudinal axes on said upright partition and each of said doors being pivotable with and in response to rotation of its respective spindle, said second partition extending generally horizontally between said two openings, said spindles being axially aligned vertically one above the other with their adjacent ends interconnected by a rotary lost motion coupling, both of said doors being adapted to be pivoted to the open position by rotation of said spindles in the same direction.
Claim 6
Dependent Claim
67 words
An air conditioner as set forth in claim 3 wherein said coupling includes a radially extending lug at the end of one of said spindles and an angular slot in the end of the other spindle into which said lug extends, said lug permitting said one door to open a predetermined extent before establishing an operating connection with the slot in the end of the other spindle.
Claim 7
Dependent Claim
30 words
An air conditioner as set forth in claim 3 including a single control rod operatively connected with said upper door and adapted to operate said lower door through said coupling.
Claim 8
Dependent Claim
112 words
A room air conditioner including a casing having a front grille, an evaporator in said casing positioned adjacent the front grille, a blower in said casing for drawing room air into said casing through the portion of the grille adjacent the evaporator and for discharging the conditioned air back into the room through another portion of the grille, said blower being of the axial intake, radial discharge type, a generally imperforate upright partition in said casing spaced inwardly from said front grille and defining at least in part a compartment in which said evaporator and said blower are disposed, said blower having its inlet facing inwardly of the casing toward said partition.
Claim 9
Dependent Claim
112 words
A room air conditioner including a casing having a front grille, an evaporator in said casing positioned adjacent the front grille, a blower in said casing for drawing room air into said casing through the portion of the grille adjacent the evaporator and for discharging the conditioned air back into the room through another portion of the grille, said blower being of the axial intake, radial discharge type, a generally imperforate upright partition in said casing spaced inwardly from said front grille and defining at least in part a compartment in which said evaporator and said blower are disposed, said blower having its inlet facing inwardly of the casing toward said partition.
Claim 10
Dependent Claim
27 words
An air conditioner as set forth in claim 6 wherein said partition has a sound insulating material on the side thereof facing the inlet of the blower.
Claim 11
Dependent Claim
43 words
An air conditioner as set forth in claim 6 wherein said compartment has a generally horizontally extending partition therein dividing said compartment into a lower evaporator chamber and an upper air out-let chamber, the outlet of said blower communicating with said upper chamber.
Claim 12
Dependent Claim
21 words
An air conditioner as set forth in claim 6 wherein the outlet of the blower extends upwArdly through said horizontal partition.
Claim 13
Dependent Claim
31 words
An air conditioner as set forth in claim 6 including means connected with the outlet of the blower and forming a duct extending to said other portion of the front grille.
Claim 14
Dependent Claim
163 words
An air conditioning unit comprising a casing having top, bottom, end, front and rear panels, a partition in said casing dividing the casing into a front compartment and a rear compartment, a compressor-condenser unit in said rear compartment, an evaporator in said front compartment, a fan motor in said rear compartment having an output shaft extending transversely through said partition into said front compartment, a blower in said front compartment having an impellor connected to the portion of the motor shaft extending through the partition, said blower having an axial air intake and a radially disposed air outlet, said axial air intake of the blower facing said partition and being spaced forwardly therefrom, means forming air inlet and outlet openings in said front compartment disposed such that when the blower is operated it draws air into said front compartment through said air inlet means, across said evaporator to condition the air and then directs the air outwardly through said last-mentioned air outlet means.
Claim 15
Dependent Claim
163 words
An air conditioning unit comprising a casing having top, bottom, end, front and rear panels, a partition in said casing dividing the casing into a front compartment and a rear compartment, a compressor-condenser unit in said rear compartment, an evaporator in said front compartment, a fan motor in said rear compartment having an output shaft extending transversely through said partition into said front compartment, a blower in said front compartment having an impellor connected to the portion of the motor shaft extending through the partition, said blower having an axial air intake and a radially disposed air outlet, said axial air intake of the blower facing said partition and being spaced forwardly therefrom, means forming air inlet and outlet openings in said front compartment disposed such that when the blower is operated it draws air into said front compartment through said air inlet means, across said evaporator to condition the air and then directs the air outwardly through said last-mentioned air outlet means.
Claim 16
Dependent Claim
22 words
An air conditioner as set forth in claim 11 wherein said radial outlet directs air generally vertically upwardly in said front compartment.
Claim 17
Dependent Claim
21 words
An air conditioner as set forth in claim 12 wherein said air outlet means comprises an opening in said top panel.
Claim 18
Dependent Claim
32 words
An air conditioner as set forth in claim 12 wherein said air outlet means comprises an opening in said top panel generally vertically aligned with said radially disposed outlet of said blower.
Claim 19
Dependent Claim
55 words
An air conditioner as set forth in claim 12 wherein said air outlet means comprises an opening in said top panel and including means forming an air duct communicating with the outlet means in said top panel, said duct having an outlet opening therein located remotely from the air outlet means in the top panel.
Claim 20
Dependent Claim
31 words
An air conditioner as set forth in claim 15 wherein said duct extends vertically upwardly from said top panel and the outlet opening therein is located adjacent the upper end thereof.
Claim 21
Dependent Claim
33 words
An air conditioner as set forth in claim 15 wherein said duct extends laterally beyond said casing and the outlet opening therein is located adjacent an end thereof disposed laterally beyond the casing.
Claim 22
Dependent Claim
29 words
An air conditioner as set forth in claim 15 wherein the air outlet means for the front compartment also includes an opening in the front panel of the casing.
Claim 23
Dependent Claim
42 words
An air conditioner as set forth in claim 18 including means for varying the amount of air from the blower outlet directed outwardly of said front compartment into said duct and out of the opening in the front panel of the casing.
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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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |