US5348077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated air exchanger
Assignee: Individual
•
Filing: 1991-03-29
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Granted: 1994-09-20
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Expires: 2011-03-29
Abstract
Abstract An integrated air exchanger (10) is disclosed for controlling the volume and temperature of air exchanged between an external environment (14) and a supplied environment (16). In that regard, a relatively simple crossed damper (72) controls air introduced to the air exchanger along an external air path (18) and return air path (20) to be returned to the supplied environment in an external environment through a supply air path (24) and exhaust air path (22) in a controlled relationship. A supply coil (56) is included to effect heat transfer to the air provided to the supplied environment. A system controller (70) controls a heat source (60), compressor (62), valves (64 and 66) and the damper to achieve the desired temperature and air direction. Exchangers (134 and 178) are also disclosed for use in satisfying the heating, ventilation, and cooling demands of a plurality of different environments.
Inventors
- 👤 Chris F. Hillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:52
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/022; F24F11/00; F24F11/70; F24F11/80; F24F11/81
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
237 words
An air exchanger, for controlling the flow of air between a supplied environment and an external environment, comprising: housing means for defining an air exchange chamber, an external air path and exhaust air path between said air exchange chamber and the external environment, and a return air path and supply air path between said air exchange chamber and the supplied environment; supply energy transfer means, at least partially positioned in said supply air path, for influencing the temperature of air flowing through said supply air path to the supplied environment; exhaust energy transfer means, at least partially positioned in said exhaust air path, for influencing the temperature of air flowing through said exhaust air path to the external environment; supply air blower means for inducing airflow through said supply air path; exhaust air blower means for introducing airflow through said exhaust air path; an airflow control damper, positioned in said air exchange chamber, having first, second, third, and fourth arms, the flow of air from said return air path and said external air path to said supply air path being controlled solely by cooperation between the first and second arms, the flow of air from said return air path and said external air path to said exhaust air path being controlled solely by cooperation between the third and fourth arms; and damper control means for controlling the operation of said first, second, third, and fourth damper arms.
Claim 2
Dependent Claim
237 words
An air exchanger, for controlling the flow of air between a supplied environment and an external environment, comprising: housing means for defining an air exchange chamber, an external air path and exhaust air path between said air exchange chamber and the external environment, and a return air path and supply air path between said air exchange chamber and the supplied environment; supply energy transfer means, at least partially positioned in said supply air path, for influencing the temperature of air flowing through said supply air path to the supplied environment; exhaust energy transfer means, at least partially positioned in said exhaust air path, for influencing the temperature of air flowing through said exhaust air path to the external environment; supply air blower means for inducing airflow through said supply air path; exhaust air blower means for introducing airflow through said exhaust air path; an airflow control damper, positioned in said air exchange chamber, having first, second, third, and fourth arms, the flow of air from said return air path and said external air path to said supply air path being controlled solely by cooperation between the first and second arms, the flow of air from said return air path and said external air path to said exhaust air path being controlled solely by cooperation between the third and fourth arms; and damper control means for controlling the operation of said first, second, third, and fourth damper arms.
Claim 3
Dependent Claim
37 words
The air exchanger of claim 1, wherein said first, second, third, and fourth damper arms each include a plurality of pivotable damper vanes for controlling the flow of air through said first, second, third, and fourth arms.
Claim 4
Dependent Claim
63 words
The air exchanger of claim 2, wherein said damper control means further comprises: ventilation control means for producing an output indicative of a desired volume of air flowing in said supply air path and said exhaust air path; and damper actuator means for receiving said ventilation control output and controlling the position of said damper vanes in said damper arms in response thereto.
Claim 5
Dependent Claim
58 words
The air exchanger of claim 3, wherein said damper vanes in said first and third damper arms are pivotable by said damper actuator means to be substantially parallel to each other and whereins said damper plates in said second and fourth damper arms are similarly pivotable by said damper actuator means to be substantially parallel to each other.
Claim 6
Dependent Claim
62 words
The air exchanger of claim 4, further comprising supply air control means for producing a supply air temperature control output indicative of a desired temperature of air flowing in said supply air path, said supply energy transfer means being for receiving and responding to said supply air temperature control output by influencing the temperature of air flowing in said supply air path.
Claim 7
Dependent Claim
51 words
The air exchanger of claim 5, wherein said supply energy transfer means further comprises: coil means for receiving a fluid and for transferring heat between said fluid and air flowing through said supply air path; and fluid supply means, coupled to said coil means, for supplying fluid to said coil means.
Claim 8
Dependent Claim
238 words
An air exchanger for controlling the flow of air between a supplied environment and an external environment, consisting of: housing means for defining an air exchange chamber, an external air path and exhaust air path between said air exchange chamber and the external environment, and a return air path and supply air path between said air exchange chamber and the supplied environment; supply energy transfer means, at least partially positioned in said supply air path, for influencing the temperature of air flowing through said supply air path to the supplied environment; exhaust energy transfer means, at least partially positioned in said exhaust air path for influencing the temperature of air flowing through said exhaust air path to the external environment; supply air blower means for inducing airflow through said supply air path; exhaust air blower means for inducing airflow through said exhaust air path; an airflow control damper, positioned in said air exchange chamber, having first, second, third, and fourth arms, the flow of air from said return air path and said external air path to said supply air path being controlled solely by cooperation between the first and second arms, the flow of air from said return air path and said external air path to said exhaust air path being controlled solely by cooperation between the third, and fourth arms; and damper control means for controlling the operation of said first, second, third, and fourth damper arms.
Claim 9
Dependent Claim
238 words
An air exchanger for controlling the flow of air between a supplied environment and an external environment, consisting of: housing means for defining an air exchange chamber, an external air path and exhaust air path between said air exchange chamber and the external environment, and a return air path and supply air path between said air exchange chamber and the supplied environment; supply energy transfer means, at least partially positioned in said supply air path, for influencing the temperature of air flowing through said supply air path to the supplied environment; exhaust energy transfer means, at least partially positioned in said exhaust air path for influencing the temperature of air flowing through said exhaust air path to the external environment; supply air blower means for inducing airflow through said supply air path; exhaust air blower means for inducing airflow through said exhaust air path; an airflow control damper, positioned in said air exchange chamber, having first, second, third, and fourth arms, the flow of air from said return air path and said external air path to said supply air path being controlled solely by cooperation between the first and second arms, the flow of air from said return air path and said external air path to said exhaust air path being controlled solely by cooperation between the third, and fourth arms; and damper control means for controlling the operation of said first, second, third, and fourth damper arms.
References Cited (Backward Citations)
US2466383A
Cited
US2401560A
Cited
US2391151A
Cited
US2718119A
Cited
US2755072A
Cited
US2969652A
Cited
US2984087A
Cited
US3143864A
Cited
US3995446A
Cited
JPS55110841A
Cited
US4477020A
Cited
JPS57178913A
Cited
JPS57184843A
Cited
US4566531A
Cited
US4678025A
Cited
US4491061A
Cited
US4517810A
Cited
DE3602120A1
Cited
US5024263A
Cited
US4841733A
Cited
US4918933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-19 | 1998-03-21 | 1998-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-19 | 2002-03-21 | 2002-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-19 | 2006-03-21 | 2006-09-20 | $7700.00 | Window Closed / Lapsed |