US3982583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optimized air conditioning system
Assignee: Honeywell Inc
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Filing: 1974-12-30
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Granted: 1976-09-28
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Expires: 1994-12-30
Abstract
Abstract A system, particularly useful in a variable volume air conditioning system, is provided to insure that a predetermined amount of fresh air is taken into a building by the air conditioning system and includes an air property sensor for sensing the air in the system and for regulating a damper means to maintain the minimum outdoor air at a predetermined value.
Inventors
- 👤 Gideon Shavit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:56
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/0001; F24F11/70; F24F11/72; F24F11/74; F24F11/30; F24F2110/00; F24F2110/40
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
120 words
An air flow control apparatus for use in an air conditioning system having a source of minimum outdoor air, a source of variable outdoor air, a source of return air, and discharge means for discharging a combination of said outdoor air, variable outdoor air and/or return air to at least one zone, said control apparatus comprising: damper means for regulating the minimum amount of outdoor air admitted to said system; air property sensing means for providing an output signal dependent upon the air property in said system; and, control means responsive to said output signal and connected to said damper means for operating said damper means for insuring that said minimum outdoor air is maintained at a substantially predetermined level
Claim 2
Dependent Claim
120 words
An air flow control apparatus for use in an air conditioning system having a source of minimum outdoor air, a source of variable outdoor air, a source of return air, and discharge means for discharging a combination of said outdoor air, variable outdoor air and/or return air to at least one zone, said control apparatus comprising: damper means for regulating the minimum amount of outdoor air admitted to said system; air property sensing means for providing an output signal dependent upon the air property in said system; and, control means responsive to said output signal and connected to said damper means for operating said damper means for insuring that said minimum outdoor air is maintained at a substantially predetermined level
Claim 3
Dependent Claim
23 words
The control apparatus of claim 1 wherein said air property sensing means comprises static pressure sensing means for sensing the static pressure of
Claim 4
Dependent Claim
47 words
The control apparatus of claim 2 wherein said damper means comprises a damper for controlling a mixture of return air and variable outdoor air and said control means comprises means responsive to the static pressure sensing means for controlling the output of said discharge means and for
Claim 5
Dependent Claim
24 words
The control apparatus of claim 1 wherein said air property sensing means comprises air flow sensing means for sensing the flow of said minimum
Claim 6
Dependent Claim
46 words
The control apparatus of claim 4 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor
Claim 7
Dependent Claim
35 words
The control apparatus of claim 4 wherein said damper means further comprises a mixed air damper for controlling the mixture of said return air and said variable outdoor air and said control means comprises further
Claim 8
Dependent Claim
46 words
The control apparatus of claim 6 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor
Claim 9
Dependent Claim
55 words
The control apparatus of claim 4 further comprising static pressure sensing means for sensing the static pressure of the air discharged by said discharge means and further control means connected between said static pressure sensing means and said discharge means for maintaining the static pressure of the air discharged by said discharge means at a
Claim 10
Dependent Claim
46 words
The control apparatus of claim 8 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor
Claim 11
Dependent Claim
47 words
The control apparatus of claim 8 wherein said damper means further comprises a mixed air damper for controlling the mixture of said return air and said variable outdoor air and said control means comprises further means for controlling said mixed air damper in response to said output
Claim 12
Dependent Claim
46 words
The control apparatus of claim 10 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said outdoor air
Claim 13
Dependent Claim
21 words
The control apparatus of claim 10 wherein said air property sensing means comprises static pressure sensing means for sensing the static
Claim 14
Dependent Claim
46 words
The control apparatus of claim 12 wherein said damper means comprises a mixed air damper for controlling a mixture of return air and variable outdoor air and said control means comprises means responsive to the static pressure sensing means for controlling the output of said discharge
Claim 15
Dependent Claim
139 words
An air flow control apparatus for use in a variable volume air conditioning system having a source of minimum outdoor air, a source of variable outdoor air, a source of return air, discharge means for discharging a combination of said outdoor air, variable outdoor air and/or return air to a plurality of zones, and a damper associated with each zone for controlling the flow of discharged air to that zone, said control apparatus comprising: damper means for regulating the minimum amount of outdoor air admitted to said system; air property sensing means for providing an output signal dependent upon the property of air in said system; and, control means responsive to said output signal and connected to said damper means for operating said damper means for insuring that said minimum outdoor air is maintained at a substantially predetermined level
Claim 16
Dependent Claim
139 words
An air flow control apparatus for use in a variable volume air conditioning system having a source of minimum outdoor air, a source of variable outdoor air, a source of return air, discharge means for discharging a combination of said outdoor air, variable outdoor air and/or return air to a plurality of zones, and a damper associated with each zone for controlling the flow of discharged air to that zone, said control apparatus comprising: damper means for regulating the minimum amount of outdoor air admitted to said system; air property sensing means for providing an output signal dependent upon the property of air in said system; and, control means responsive to said output signal and connected to said damper means for operating said damper means for insuring that said minimum outdoor air is maintained at a substantially predetermined level
Claim 17
Dependent Claim
23 words
The control apparatus of claim 14 wherein said air property sensing means comprises air flow sensing means for sensing the flow of said
Claim 18
Dependent Claim
46 words
The control apparatus of claim 15 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor
Claim 19
Dependent Claim
35 words
The control apparatus of claim 15 wherein said damper means further comprises a mixed air damper for controlling the mixture of said return air and said variable outdoor air and said control means comprises further
Claim 20
Dependent Claim
46 words
The control apparatus of claim 17 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor
Claim 21
Dependent Claim
55 words
The control apparatus of claim 15 further comprising static pressure sensing means for sensing the static pressure of the air discharged by said discharge means and further control means connected between said static pressure sensing means and said discharge means for maintaining the static pressure of the air discharged by said discharge means at a
Claim 22
Dependent Claim
46 words
The control apparatus of claim 19 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor
Claim 23
Dependent Claim
47 words
The control apparatus of claim 19 wherein said damper means further comprises a mixed air damper for controlling the mixture of said return air and said variable outdoor air and said control means comprises further means for controlling said mixed air damper in response to said output
Claim 24
Dependent Claim
48 words
The control apparatus for claim 21 wherein said damper means comprises a minimum outdoor air damper for controlling the source of minimum outdoor air and said control means comprises means responsive to said output signal of said air flow sensing means for controlling said minimum outdoor air damper.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |