US4870832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive ventilation cooling augmentor
Assignee: Individual
•
Filing: 1988-10-03
•
Granted: 1989-10-03
•
Expires: 2008-10-03
Abstract
Abstract The apparatus comprises a large, open ended air collector attachment above an external heat exchanger of a standard residential air conditioner, which ducts the exhausted heat exchanger air flow into the attic of a building through a substantially vertically ascending air flow tube. The combination of the fan exhaust pressure together with adiabatic expansion of the warm air rising in the air tube produces sufficient air flow within the attic to pressure ventilate and thereby cool an average household attic, by displacing air trapped within the attic. This, in turn, reduces the heat load into the air-conditioned spaces of the house, by reducing the heat radiated from the attic spaces downward through the ceiling of the housing.
Inventors
- 👤 Charles R. Crawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:55
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; F24F7/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
A process for increasing the efficiency of air conditioning, in a building having an air conditioning system with a heat exchange external to the building and having an attic thereof comprising: a. diverting a portion of the heated air emitted by said heat exchanger; b. ducting said diverted heated air through a substantially vertical flow path creating an adiabatic rising effect therein; c. ducting said heated air from said vertical flow path into the attic of said building.
Claim 2
Dependent Claim
78 words
A process for increasing the efficiency of air conditioning, in a building having an air conditioning system with a heat exchange external to the building and having an attic thereof comprising: a. diverting a portion of the heated air emitted by said heat exchanger; b. ducting said diverted heated air through a substantially vertical flow path creating an adiabatic rising effect therein; c. ducting said heated air from said vertical flow path into the attic of said building.
Claim 3
Independent Claim
88 words
An apparatus for increasing the efficiency of air conditioning of a building having an attic and an air conditioning system with a external heat exchanger, to the building comprising: a. means, above said heat exchanger, for diverting the flow of a fraction of air exhausted from said heat exchanger; b. said means being connected for flow of said diverted air to a vertically ascending air tube; c. said vertically asscending air tube being connected for the continuing flow of said diverted air into the attic of said building.
Claim 4
Independent Claim
88 words
An apparatus for increasing the efficiency of air conditioning of a building having an attic and an air conditioning system with a external heat exchanger, to the building comprising: a. means, above said heat exchanger, for diverting the flow of a fraction of air exhausted from said heat exchanger; b. said means being connected for flow of said diverted air to a vertically ascending air tube; c. said vertically asscending air tube being connected for the continuing flow of said diverted air into the attic of said building.
Claim 5
Dependent Claim
79 words
The apparatus as described in claim 2 above wherein said means for diverting air further comprise: a. a plurality of flexible air tube sections; b. each said air tube section having a lower end affixed to an air exhaust side of said heat exchanger; c. each said air tube section having an upper end connected for flow of diverted air to a connecting manifold; d. said manifold being connected for flow of air to said vertically ascending air tube.
Claim 6
Dependent Claim
25 words
The apparatus of claim 2 above, wherein said vertically ascending air tube comprises an elongate, flexible hollow plastic tube having a spiral reinforcing means therein.
Claim 7
Dependent Claim
25 words
The apparatus of claim 3 above wherein each said air tube section comprises an elongate hollow plastic tube having a spiral wall reinforcing means therein.
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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) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |