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US3874191A Expired / Lapsed US ⏱️ 0.0 years remaining

Blower housing

Assignee: Molded Products Co
•
Filing: 1974-06-12
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Granted: 1975-04-01
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Expires: 1994-06-12
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Abstract

Abstract The specification discloses a blower housing for dual squirrel cage blowers driven by an intermediately disposed motor for achieving even air distribution for the evaporator coil of an air conditioner. The housing has a front wall with an air egress region for each blower with a curved baffle located in the housing above and between the blowers for directing air toward the central region of the evaporator coil. In addition, there are provided curved deflectors located in the housing above each blower for deflecting air toward the central region of the evaporator coil. A horizontal slat also is provided in the front wall dividing each air egress region into upper and lower air openings for providing a back pressure to enhance flow of air toward the central region of the evaporator coil.

Inventors

  • 👤 James N Hudson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:10
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/20; F04; F04D; F04D17/00; F04D17/02; F04D17/04

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 277 words
A housing for spaced apart cylindrical blowers located in axial alignment and driven by a motor located between the blowers for blowing air on the evaporator coil of an air conditioner, said bLowers being coupled to shaft means of the motor on opposite sides thereof and having outer edges facing in opposite directions and inner edges facing each other, said outer and inner edges being located in planes transverse to the axes of said cylindrical blowers, said housing comprising: a front wall, having top and bottom portions, extending across said housing to positions beyond the outer edges of said blowers, top wall means extending rearward from the top portion of said front wall and which joins surrounding wall means extending around said cylindrical blowers from the lower portion of said front wall, said front wall having an air egress region for each blower through which air may be blown, each air egress region comprising an opening located at a level generally above its cylindrical blower, curved baffle means located in said housing above and between said cylindrical blowers for directing air through said openings toward the central region of the evaporator coil, said curved baffle means comprising curved walls located inward of said cylindrical blowers on each side of a plane extending midway between said blowers and which curved walls extend forward toward said front wall and curve toward each other, and curved deflector means located in said housing above each cylindrical blower for deflecting air through said openings toward the central region of the evaporator coil, said deflector means located above said blowers extending forward and curving toward said plane which extends midway between said blowers.
Claim 2
Dependent Claim 277 words
A housing for spaced apart cylindrical blowers located in axial alignment and driven by a motor located between the blowers for blowing air on the evaporator coil of an air conditioner, said bLowers being coupled to shaft means of the motor on opposite sides thereof and having outer edges facing in opposite directions and inner edges facing each other, said outer and inner edges being located in planes transverse to the axes of said cylindrical blowers, said housing comprising: a front wall, having top and bottom portions, extending across said housing to positions beyond the outer edges of said blowers, top wall means extending rearward from the top portion of said front wall and which joins surrounding wall means extending around said cylindrical blowers from the lower portion of said front wall, said front wall having an air egress region for each blower through which air may be blown, each air egress region comprising an opening located at a level generally above its cylindrical blower, curved baffle means located in said housing above and between said cylindrical blowers for directing air through said openings toward the central region of the evaporator coil, said curved baffle means comprising curved walls located inward of said cylindrical blowers on each side of a plane extending midway between said blowers and which curved walls extend forward toward said front wall and curve toward each other, and curved deflector means located in said housing above each cylindrical blower for deflecting air through said openings toward the central region of the evaporator coil, said deflector means located above said blowers extending forward and curving toward said plane which extends midway between said blowers.
Claim 3
Dependent Claim 47 words
The housing of claim 1 comprising: a slat extending across each air egress region separating each air egress region into two openings, one of which includes said opening located at a level generally above its blower and a lower opening located generally in front of its blower.
Claim 4
Dependent Claim 412 words
A housing for spaced apart cylindrical blowers located in axial alignment and driven by a motor located between the blowers for blowing air on the evaporator coil of an air conditioner, said blowers being coupled to shaft means of the motor on opposite sides thereof and having outer edges facing in opposite directions and inner edges facing each other, said outer and inner edges being located in planes transverse to the axes of said cylindrical blowers, said housing comprising: separate chambers for each blower, a front wall, having top and bottom portions extending across said chambers to positions beyond the outer edges of said blowers, each chamber including top wall structure extending rearward from the top portion of said front wall and which joins surrounding wall structure extending around its cylindrical blower from the lower portion of said front wall, said chambers having outer side wall portions spaced outward from the outer edges of said blowers and inner side wall portions spaced from each other and inward from the inner edges of said blowers, said front wall having air egress region for each blower through which air may be blown, each egress region including an opening near the top portion of said front wall and located at a level generally above the cylindrical blower of each chamber, said openings being defined by top and bottom edges, outer side edges corresponding generally with the positions of said outer side wall portions of said chambers, and curved inner walls, said curved inner walls being coupled to said inner side wall portions of said chambers at positions spaced rearward from said front wall and which extend forward, curve toward each other, and meet at or near said front wall in a plane extending midway between said blowers for directing air toward the central region of the evaporator coil, at least one curved air deflector for each chamber located above its cylindrical blower and connected to and extending downward from said top wall structure in line with said opening of said chamber, said air deflector of each chamber being located between said curveD inner wall and said outer side wall of its chamber and extends forward from a rear position toward said front wall, curving toward the plane which extends midway between said blowers, said curved inner walls and curved air deflectors being curved sufficient to direct and deflect air with a minimum of turbulence through said openings toward the central region of the evaporator coil.
Claim 5
Dependent Claim 412 words
A housing for spaced apart cylindrical blowers located in axial alignment and driven by a motor located between the blowers for blowing air on the evaporator coil of an air conditioner, said blowers being coupled to shaft means of the motor on opposite sides thereof and having outer edges facing in opposite directions and inner edges facing each other, said outer and inner edges being located in planes transverse to the axes of said cylindrical blowers, said housing comprising: separate chambers for each blower, a front wall, having top and bottom portions extending across said chambers to positions beyond the outer edges of said blowers, each chamber including top wall structure extending rearward from the top portion of said front wall and which joins surrounding wall structure extending around its cylindrical blower from the lower portion of said front wall, said chambers having outer side wall portions spaced outward from the outer edges of said blowers and inner side wall portions spaced from each other and inward from the inner edges of said blowers, said front wall having air egress region for each blower through which air may be blown, each egress region including an opening near the top portion of said front wall and located at a level generally above the cylindrical blower of each chamber, said openings being defined by top and bottom edges, outer side edges corresponding generally with the positions of said outer side wall portions of said chambers, and curved inner walls, said curved inner walls being coupled to said inner side wall portions of said chambers at positions spaced rearward from said front wall and which extend forward, curve toward each other, and meet at or near said front wall in a plane extending midway between said blowers for directing air toward the central region of the evaporator coil, at least one curved air deflector for each chamber located above its cylindrical blower and connected to and extending downward from said top wall structure in line with said opening of said chamber, said air deflector of each chamber being located between said curveD inner wall and said outer side wall of its chamber and extends forward from a rear position toward said front wall, curving toward the plane which extends midway between said blowers, said curved inner walls and curved air deflectors being curved sufficient to direct and deflect air with a minimum of turbulence through said openings toward the central region of the evaporator coil.
Claim 6
Dependent Claim 47 words
The housing of claim 3 comprising: a slat extending across each air egress region separating each air egress region into two openings, one of which includes said opening located at a level generally above its blower and a lower opening located generally in front of its blower.
Claim 7
Dependent Claim 156 words
The housing of claim 3 wherein: said front wall has a generally flat forward face, said top wall structure of each chamber comprises a generally flat top portion which extends rearward and joins surrounding wall structure extending around its blower from the lower portion of said front wall, each chamber including two curved air deflectors located above its cylindrical blower and connected to and extending downward from its flat top portion in line with said opening of each chamber, said air deflectors of each chamber being spaced from each other between said curved inner wall and said outer side wall of their chamber and extend forward from a rear position toward said front wall, curving toward the plane which extends midway between said blowers, said curved inner walls and curved air deflectors being curved sufficient to direct and deflect air with a minimum of turbulence through said openings toward the central region of the evaporator coil.
Claim 8
Dependent Claim 47 words
The housing of claim 5 comprising: a slat extending across each air egress region separating each air egress region into two openings, one of which includes said opening located at a level generally above its blower and a lower opening located generally in front of its blower.

References Cited (Backward Citations)

US1767279A Cited
US2008255A Cited
US2697921A Cited
US3169737A Cited
US3483713A Cited
US3491550A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-31 1978-09-30 1979-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-31 1982-09-30 1983-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-31 1986-09-30 1987-04-01 $7700.00 Window Closed / Lapsed

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