US3749157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination air heating and cooling apparatus for limited space installations
Assignee: Individual
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Filing: 1971-10-21
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Granted: 1973-07-31
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Expires: 1991-10-21
Abstract
Abstract A combination air heating and cooling apparatus suitable for use in installations where space is limited, having a conditioning chamber containing both a heating unit and a cooling unit, a blower which is rotatable alternatively to one of two limiting or rest positions, an air distributor assembly, and valve means cooperating therewith, the structure in one position being arranged to direct air downwardly over the heating unit and through a downwardly directed plenum, while bypassing the cooling unit; and in the other position to direct air upwardly across said cooling unit, while bypassing the heating unit, and to direct the air thus cooled for being discharged upwardly from the apparatus.
Inventors
- 👤 G Davison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:54
CPC Classifications
F; F24; F24F; F24F3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
191 words
A combination heating and air conditioning apparatus suitable for being mounted in a limited space comprising a housing, means within said housing defining a conditioning chamber having a heating unit mounted in one portion thereof and a cooling unit mounted in another portion thereof spaced apart from said heating unit, a substantially cylindrical air distribution chamber, first port means positioned adjacent said heating unit providing heated air communication between said conditioning chamber and said air distribution chamber, and second port means positioned adjacent said cooling unit providing cooled air communication between said conditioning chamber and said air distribution chamber, blower means having inlet and outlet rotatably mounted in said air distribution chamber about a horizontal axis passing substantially centrally through said blower means, said blower means being rotatable to each of at least two rest positions, one in which said outlet is directed toward said first port, and another in which said outlet is directed away from said first port, and valve means arranged in one position to close said first port and open said second port, and in another position to open said first port and close said second port.
Claim 2
Dependent Claim
191 words
A combination heating and air conditioning apparatus suitable for being mounted in a limited space comprising a housing, means within said housing defining a conditioning chamber having a heating unit mounted in one portion thereof and a cooling unit mounted in another portion thereof spaced apart from said heating unit, a substantially cylindrical air distribution chamber, first port means positioned adjacent said heating unit providing heated air communication between said conditioning chamber and said air distribution chamber, and second port means positioned adjacent said cooling unit providing cooled air communication between said conditioning chamber and said air distribution chamber, blower means having inlet and outlet rotatably mounted in said air distribution chamber about a horizontal axis passing substantially centrally through said blower means, said blower means being rotatable to each of at least two rest positions, one in which said outlet is directed toward said first port, and another in which said outlet is directed away from said first port, and valve means arranged in one position to close said first port and open said second port, and in another position to open said first port and close said second port.
Claim 3
Dependent Claim
47 words
A combination heating and air conditioning apparatus according to claim 1, wherein said valve means comprises a pair of spaced-apart sheet-form flanges of circular sector form connected together by a transversely oriented arcuate flange, said valve means being pivotally mounted at the apexes of said spaced-part flanges.
Claim 4
Dependent Claim
193 words
a substantially cylindrical air distribution chamber having a first port means positioned adjacent said heating unit providing hot air communication between said conditioning chamber and said air distribution chamber, a second port means positioned adjacent said cooling unit providing cold air communication between said conditioning chamber and said air distribution chamber, and a third port means positioned at the top of said air distribution chamber providing communication betWeen said air distribution chamber and the exterior, C. blower means having inlet and outlet rotatably mounted in said air distribution chamber about a horizontal axis passing substantially centrally through said blower means, said blower means being rotatable to each of at least two rest positions including a cooling position in which said outlet is directed upwardly toward said third port means, and a heating position in which said blower outlet is directed downwardly toward said first port means; and D. valve means arranged to close said first port means and to open said second port means when said apparatus is in the cooling condition, and to close said second port means and open said first port means when said apparatus is in the cooling condition.
Claim 5
Dependent Claim
193 words
a substantially cylindrical air distribution chamber having a first port means positioned adjacent said heating unit providing hot air communication between said conditioning chamber and said air distribution chamber, a second port means positioned adjacent said cooling unit providing cold air communication between said conditioning chamber and said air distribution chamber, and a third port means positioned at the top of said air distribution chamber providing communication betWeen said air distribution chamber and the exterior, C. blower means having inlet and outlet rotatably mounted in said air distribution chamber about a horizontal axis passing substantially centrally through said blower means, said blower means being rotatable to each of at least two rest positions including a cooling position in which said outlet is directed upwardly toward said third port means, and a heating position in which said blower outlet is directed downwardly toward said first port means; and D. valve means arranged to close said first port means and to open said second port means when said apparatus is in the cooling condition, and to close said second port means and open said first port means when said apparatus is in the cooling condition.
Claim 6
Dependent Claim
114 words
A combination heating and air conditioning apparatus according to claim 2, wherein said valve means is mounted within said air distribution chamber and pivots about the same axis as said blower means, said blower means being provided with a valve means-engaging member so arranged that when said blower is in one rest position said valve engaging member is disengaged from said valve and said valve is maintained by gravity in position for closing one port means, and when said blower means rotates to the other rest position, said valve means is engaged and moved to the position where said first port means is opened and where said arcuate flange covers the other port means.
Claim 7
Dependent Claim
38 words
A combination heating and air conditioning apparatus according to claim 3, wherein said valve means in its disengaged position covers said first port, and in its engaged position moves to a position where it covers said second port.
Claim 8
Dependent Claim
28 words
A combination heating and air conditioning apparatus according to claim 1, wherein an electric motor and gear reduction means in combination are provided for rotating said blower means.
Claim 9
Dependent Claim
30 words
A combination heating and air conditioning apparatus suitable for being mounted in a limited space comprising: A. a housing, B. means within said housing defining a pair of chambers including:
Claim 10
Dependent Claim
30 words
A combination heating and air conditioning apparatus suitable for being mounted in a limited space comprising: A. a housing, B. means within said housing defining a pair of chambers including:
Claim 11
Dependent Claim
47 words
A combination heating and air conditioning apparatus according to claim 6, wherein said valve means comprises a pair of spaced-apart sheet-form flanges of circular sector form connected together by a transversely oriented arcuate flange, said valve means being pivotally mounted at the apexes of said spaced-apart flanges.
Claim 12
Dependent Claim
114 words
A combination heating and air conditioning apparatus according to claim 7, wherein said valve means is mounted within said air distribution chamber and pivots about the same axis as said blower means, said blower means being provided with a valve means engaging member so arranged that when said blower is in one rest position said valve engaging member is disengaged from said valve and said valve is maintained by gravity in position for closing one port means, and when said blower means rotates to the other rest position, said valve means is engaged and moved to the position where said first port is opened and where said arcuate flange covers the other port means.
Claim 13
Dependent Claim
38 words
A combination heating and air conditioning apparatus according to claim 8, wherein said valve means in its disengaged position covers said first port, and in its engaged position moves to a position where it covers said second port.
Claim 14
Dependent Claim
35 words
A combination heating and air conditioning apparatus according to claim 6, wherein an electric motor and gear reduction means in combination are provided for rotating said blower means from one rest position to the other.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |